前台
注册
登录
首页
试卷
后台
登录
首页
管理
编辑
工程搭建
系统架构
- 前后台共用一组数据（存储到MySQL）
- 均采用三层架构（表现层、业务层、持久层）
技术架构
需求分析
图中连线表示一对多的情况，有原点的一方为多
- 日志应该是遍布整个系统的，各个操作都可以留下操作日志
- ss——系统模块，st——后台业务模块，tr——前台业务模块
- 这三个模块名称直接对应数据库中各个表的表前缀
工程结构
- 创建Maven工程（web工程）
- 导入项目依赖的 坐标
补全目录结构
src
- java
- resources
- webapp
test
- java
- resources
创建三层架构开发的包层次结构
- domain（实体类）
- dao（持久层）
- service（业务层）
web（表现层）
- controller
- filters
- utils（工具类）
- factory（工厂类）
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<packaging>war</packaging>
<name>heimamm</name>
<groupId>top.hellocode</groupId>
<artifactId>heimamm</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<!--mybatis_-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.5.3</version>
</dependency>
<!--分页插件-->
<dependency>
<groupId>com.github.pagehelper</groupId>
<artifactId>pagehelper</artifactId>
<version>5.1.2</version>
</dependency>
<!--mysql-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.46</version>
</dependency>
<!--druid数据源-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>druid</artifactId>
<version>1.1.21</version>
</dependency>
<!--junit-->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- servlet3.0 -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!--jsp-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
<scope>provided</scope>
</dependency>
<!--bean-utils-->
<dependency>
<groupId>commons-beanutils</groupId>
<artifactId>commons-beanutils</artifactId>
<version>1.9.4</version>
</dependency>
<!--apache工具包-->
<dependency>
<groupId>org.apache.commons</groupId>
<artifactId>commons-lang3</artifactId>
<version>3.9</version>
</dependency>
<!--jstl-->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!--jackson-->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>2.9.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>2.9.0</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.9.0</version>
</dependency>
<!--文件上传-->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>
<!--POI-->
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml</artifactId>
<version>4.0.1</version>
</dependency>
<dependency>
<groupId>org.apache.poi</groupId>
<artifactId>poi-ooxml-schemas</artifactId>
<version>4.0.1</version>
</dependency>
</dependencies>
<build>
<plugins>
<!--tomcat插件-->
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.1</version>
<configuration>
<port>80</port>
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
</project>sql导入
内容有点多，直接给大家sql文件，大家直接下载吧
页面结构
- AdminLTE后台框架是一款建立在bootstrap 和 jQuery 之上的开源模板主题工具，其中内置了多个模块页面，可以用于快速创建响应式Html5网站，并免去了书写大量的CSS与JS的工作
- 后台框架很多，大家选择自己喜欢的进行删减修改即可
企业模块
- 先从简单的模块开始做（企业模块——单表查询）
- Company归属于后台模块，所以在对应的包下再建一个包store
数据层
domain
private String id;
private String name; // 名称
private Date expirationDate; // 注册日期
private String address; // 地址
private String licenseId; // 营业执照编号
private String representative; // 法人
private String phone; // 电话
private String companySize; // 规模
private String industry; // 所属行业
private String remarks; // 备注 / 描述
private String state; // 状态
private String city; // 所在地dao
- 因为是使用MaBatis，所以只写接口即可，实现使用动态代理方式
- 同样在dao下再建一个store包
public interface CompanyDao {
int save(Company company); // 保存
int delete(Company company); // 删除
int update(Company company); // 修改
Company findById(String id); // 通过id查询
List<Company> findAll(); // 查询全部
}配置文件
- 配置文件统一放到资源目录下(resources)
需要的配置文件
- MyBatis总配置文件(SqlMapConfig.xml)
- 每个模块的映射配置文件(CompanyDao.xml)
- 数据库配置文件(jdbc.properties)
resources的配置文件所在目录应该和上面的dao等工程目录一致在
resources中新建top.hellocode.dao.store，然后把CompanyDao.xml放进去
SqlMapConfig.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<!--mybatis的主配置文件-->
<configuration>
<!--定义property的配置-->
<properties resource="jdbc.properties"></properties>
<!--配置别名:别名配置是给实体类用的，不能用在dao上-->
<typeAliases>
<!--指定实体类所在的包，此时包下所有类都会注册别名，别名就是类名称-->
<package name="top.hellocode.domain"></package>
</typeAliases>
<!--配置分页插件，plugins标签有出现顺序要求，必须在environments之前，同时要在properties和typeAliases之后 -->
<plugins>
<!-- com.github.pagehelper.PageInterceptor -->
<plugin interceptor="com.github.pagehelper.PageInterceptor">
<property name="helperDialect" value="mysql" />
<property name="reasonable" value="true" />
</plugin>
</plugins>
<!--配置默认环境-->
<environments default="mysql">
<!--配置mysql的环境-->
<environment id="mysql">
<!--配置事务的类型-->
<transactionManager type="JDBC"></transactionManager>
<!--配置数据源信息-->
<dataSource type="POOLED" >
<!--配置连接数据库的四个基本信息-->
<property name="driver" value="${jdbc.driver}"></property>
<property name="url" value="${jdbc.url}"></property>
<property name="username" value="${jdbc.username}"></property>
<property name="password" value="${jdbc.password}"></property>
</dataSource>
</environment>
</environments>
<!--配置映射配置文件的位置-->
<mappers>
<!--指定实体映射配置文件所在的包，指定的是dao接口所在的包-->
<package name="top.hellocode.dao"></package>
</mappers>
</configuration>jdbc.properties
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://192.168.23.129/heima_mm
jdbc.username=root
jdbc.password=密码CompanyDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.itheima.dao.store.CompanyDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="com.itheima.domain.store.Company">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="expiration_date" jdbcType="TIMESTAMP" property="expirationDate"/>
<result column="address" jdbcType="VARCHAR" property="address"/>
<result column="license_id" jdbcType="VARCHAR" property="licenseId"/>
<result column="representative" jdbcType="VARCHAR" property="representative"/>
<result column="phone" jdbcType="VARCHAR" property="phone"/>
<result column="company_size" jdbcType="VARCHAR" property="companySize"/>
<result column="industry" jdbcType="VARCHAR" property="industry"/>
<result column="remarks" jdbcType="VARCHAR" property="remarks"/>
<result column="state" jdbcType="INTEGER" property="state"/>
<result column="city" jdbcType="VARCHAR" property="city"/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, name, expiration_date, address, license_id, representative, phone, company_size,
industry, remarks, state, city
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_company
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_company
where id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from st_company where id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入-->
<insert id="save" parameterType="com.itheima.domain.store.Company">
insert into st_company (id, name, expiration_date,
address, license_id, representative,
phone, company_size, industry,
remarks, state,
city)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{expirationDate,jdbcType=TIMESTAMP},
#{address,jdbcType=VARCHAR}, #{licenseId,jdbcType=VARCHAR}, #{representative,jdbcType=VARCHAR},
#{phone,jdbcType=VARCHAR}, #{companySize,jdbcType=VARCHAR}, #{industry,jdbcType=VARCHAR},
#{remarks,jdbcType=VARCHAR}, #{state,jdbcType=INTEGER},
#{city,jdbcType=VARCHAR})
</insert>
<!--配置全字段更新-->
<update id="update" parameterType="com.itheima.domain.store.Company">
update st_company
set name = #{name,jdbcType=VARCHAR},
expiration_date = #{expirationDate,jdbcType=TIMESTAMP},
address = #{address,jdbcType=VARCHAR},
license_id = #{licenseId,jdbcType=VARCHAR},
representative = #{representative,jdbcType=VARCHAR},
phone = #{phone,jdbcType=VARCHAR},
company_size = #{companySize,jdbcType=VARCHAR},
industry = #{industry,jdbcType=VARCHAR},
remarks = #{remarks,jdbcType=VARCHAR},
state = #{state,jdbcType=INTEGER},
city = #{city,jdbcType=VARCHAR}
where id = #{id,jdbcType=VARCHAR}
</update>
</mapper>工具类
MapperFactory：负责创建mapper工厂的工具类
- 读取配置文件
- 返回sqlSession对象
- 返回mapper对象
package top.hellocode.factory;
import org.apache.ibatis.io.Resources;
import org.apache.ibatis.session.SqlSession;
import org.apache.ibatis.session.SqlSessionFactory;
import org.apache.ibatis.session.SqlSessionFactoryBuilder;
import java.io.InputStream;
/**
* 用于生成dao接口代理实现类的工厂
* @author 黑马程序员
* @Company http://www.itheima.com
*/
public class MapperFactory {
private static SqlSessionFactory factory;
private static ThreadLocal<SqlSession> tl = new ThreadLocal<SqlSession>();
static {
InputStream in = null;
try {
//1.读取mybatis主配置文件
in = Resources.getResourceAsStream("SqlMapConfig.xml");
//2.创建构建者对象
SqlSessionFactoryBuilder builder = new SqlSessionFactoryBuilder();
//3.使用构建者创建SqlSessionFactory工厂
factory = builder.build(in);
}catch (Exception e){
//打印异常信息到控制台
e.printStackTrace();
//抛出错误提示程序终止执行
throw new ExceptionInInitializerError("初始化SqlSessionFactory失败");
}finally {
//释放流对象
if(in != null){
try{
in.close();
}catch (Exception e){
e.printStackTrace();
}
}
}
}
/**
* 获取SqlSession对象
* @return
* 保留此方法是为了后面对业务层方法增强，利用AOP添加事务
*/
public static SqlSession getSqlSession(){
return factory.openSession(false);
}
/**
* 获取Dao接口的代理实现类
* @param daoClass dao接口字节码
* @return
*/
public static <T> T getMapper(SqlSession sqlSession,Class<T> daoClass){
//1.判断传入的SqlSession是否为null
if(sqlSession == null){
return null;
}
//2.不为null，创建代理实现类
return sqlSession.getMapper(daoClass);
}
}TransactionUtil：事务管理工具类
- 提交事务
- 回滚事务
- 关闭事务
package top.hellocode.utils;
import org.apache.ibatis.session.SqlSession;
/**
* 事务控制类
* @author 黑马程序员
* @Company http://www.itheima.com
*/
public class TransactionUtil {
/**
* 提交释放
* @param sqlSession
*/
public static void commit(SqlSession sqlSession){
if(sqlSession!=null) {
sqlSession.commit();
}
}
/**
* 回滚释放
* @param sqlSession
*/
public static void rollback(SqlSession sqlSession){
if(sqlSession!=null) {
sqlSession.rollback();
}
}
/**
* 单独释放
* @param sqlSession
*/
public static void close(SqlSession sqlSession){
if(sqlSession!=null) sqlSession.close();
}
}业务层
对于任意一个模块来说，当你不清楚具体功能时，可以先把它的基础功能做出来
基础功能
- 增、删、改、查
- 查单个
- 查全部
- 分页查（分页插件）
int save(Company company); // 保存
int delete(Company company); // 删除
int update(Company company); // 修改
Company findById(String id); // 通过id查询
List<Company> findAll(); // 查询全部
PageInfo findAll(int page, int size); // 分页查询CompanyServiceImpl
package top.hellocode.service.store.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.store.CompanyDao;
import top.hellocode.domain.store.Company;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.store.CompanyService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月16日 20:20
*/
public class CompanyServiceImpl implements CompanyService {
@Override
public void save(Company company) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
company.setId(id);
// 调用Dao层操作
companyDao.save(company);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Company company) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// 调用Dao层操作
companyDao.delete(company);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Company company) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// 调用Dao层操作
companyDao.update(company);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Company findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// 调用Dao层操作
return companyDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Company> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// 调用Dao层操作
return companyDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
CompanyDao companyDao = MapperFactory.getMapper(sqlSession,CompanyDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Company> all = companyDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}实现分页功能时，startPage需要写在查询之前测试用例(CompanyServiceTest)
package top.hellocode.service.store;
import org.junit.AfterClass;
import org.junit.BeforeClass;
import org.junit.Test;
import top.hellocode.domain.store.Company;
import top.hellocode.service.store.impl.CompanyServiceImpl;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月16日 20:27
*/
public class CompanyServiceTest {
private static CompanyService companyService = null;
@BeforeClass
public static void init(){
companyService = new CompanyServiceImpl();
}
@Test
public void testSave(){
Company company = new Company();
company.setName("测试数据");
companyService.save(company);
}
@Test
public void testFindAll(){
Company company = new Company();
System.out.println(companyService.findAll(1, 100));
}
@AfterClass
public static void destory(){
companyService = null;
}
}- 在实际开发时，每写一个方法最好写一个测试用例，来及时的排错
- 配置resources中的文件夹结构时，不要直接新建一个多级目录，例如
top.hellocode.dao
系统会直接创建一个名为top.hellocode.dao的文件夹，而不是多级目录
表现层
- 页面保存位置：WEB-INFO下
- 功能访问：使用请求参数operation的值区分是何种操作
- 功能分发：使用if...else...进行功能分发，根据operation的参数值转向不同的操作
- 数据获取：调用业务层接口
- 数据共享：request范围数据共享
- 分页功能实现：按照规范开发，名称与common.jsp文件命名的相同即可（快速开发）
列表页面
list.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
<script src="${ctx}/plugins/jQuery/jquery-2.2.3.min.js"></script>
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/store/company?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
企业管理
<small>企业列表</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/store/company?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
</th>
<th class="sorting">企业名称</th>
<th class="sorting">所在地</th>
<th class="sorting">地址</th>
<th class="sorting">企业法人</th>
<th class="sorting">联系方式</th>
<th class="sorting">所属行业</th>
<th class="sorting">状态</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="item">
<tr>
<td><input name="ids" value="${item.id}" type="checkbox"></td>
<td>
${item.name}
</td>
<td>${item.city}</td>
<td>${item.address}</td>
<td>${item.representative}</td>
<td>${item.phone}</td>
<td>${item.industry}</td>
<td>${item.state ==0?'未审核':'已审核'}</td>
<td class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/company?operation=toEdit&id=${item.id}"'>编辑</button>
</td>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<!-- /.box-body -->
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/store/company?operation=list" name="pageUrl"/>
</jsp:include>
</div>
<!-- /.box-footer-->
</div>
</section>
</div>
</body>
</html>private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
CompanyService companyService = new CompanyServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = companyService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}添加页面
- 跳转到添加页面（toAdd）、保存操作（save）
toAdd
- 跳转到add.jsp页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<body>
<div id="frameContent">
<!-- 内容头部 -->
<section class="content-header" class="content-wrapper" style="margin-left:0px;">
<h1>
企业管理
<small>企业表单</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
<li><a href="all-order-manage-list.html">企业管理</a></li>
<li class="active">企业表单</li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!--添加内容信息-->
<div class="panel panel-default">
<div class="panel-heading">企业信息</div>
<form id="editForm" action="${ctx}/store/company?operation=save" method="post">
<input type="hidden" name="id" value="${company.id}">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">企业名称</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="企业名称" name="name" value="${company.name}">
</div>
<div class="col-md-2 title">营业执照</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="营业执照" name="licenseId" value="${company.licenseId}">
</div>
<div class="col-md-2 title">所在城市</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="所在地" name="city" value="${company.city}">
</div>
<div class="col-md-2 title">企业地址</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="企业地址" name="address" value="${company.address}">
</div>
<div class="col-md-2 title">法人代表</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="法人代表" name="representative" value="${company.representative}">
</div>
<div class="col-md-2 title">联系电话</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="联系电话" name="phone" value="${company.phone}">
</div>
<div class="col-md-2 title">公司规模</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="公司规模" name="companySize" value="${company.companySize}">
</div>
<div class="col-md-2 title">所属行业</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="所属行业" name="industry" value="${company.industry}">
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<select class="form-control select2" name="state" style="width: 100%;">
<option value="0" ${company.state==0 ? 'selected':''}>未审核</option>
<option value="1" ${company.state==1 ? 'selected':''}>已审核</option>
</select>
<input type="text" class="form-control" placeholder="状态" name="state" value="${company.state}">
</div>
<div class="col-md-2 title">到期时间</div>
<div class="col-md-4 data">
<div class="input-group date">
<div class="input-group-addon">
<i class="fa fa-calendar"></i>
</div>
<input type="text" placeholder="到期时间" name="expirationDate" class="form-control pull-right"
value="<fmt:formatDate value="${company.expirationDate}" pattern="yyyy-MM-dd"/>" id="expirationDate">
</div>
</div>
<div class="col-md-2 title rowHeight2x">备注</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="remarks">${company.remarks}</textarea>
</div>
</div>
</form>
</div>
<!--添加内容信息/-->
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
<!--工具栏/-->
</section>
<!-- 正文区域 /-->
</div>
<!-- 内容区域 /-->
</body>
<script src="${ctx}/plugins/datepicker/bootstrap-datepicker.js"></script>
<script src="${ctx}/plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
<link rel="stylesheet" href="${ctx}/css/style.css">
<script>
$('#expirationDate').datepicker({
autoclose: true,
format: 'yyyy-mm-dd'
});
</script>
</html>private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}save
- 获取到表单中提交的数据，封装成一个对象（BeanUtils）
- 数据持久化：调用业务层接口save
- 跳转回list页面
package top.hellocode.utils;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.beanutils.BeanUtils;
import org.apache.commons.beanutils.ConvertUtils;
import org.apache.commons.beanutils.converters.DateConverter;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import java.beans.PropertyDescriptor;
import java.io.File;
import java.lang.reflect.Method;
import java.util.Date;
import java.util.List;
/**
* 填充表单数据到javabean的工具类
* @author zhy
*
*/
public class BeanUtil {
/**
* 封装表单中的数据到javabean中
* @param request 表单中的数据
* @param clazz 封装到哪个javabean
* @return 封装好的javabean对象
* 使用的是泛型。泛型必须先声明再使用。声明必须在返回值之前
* T指的就是泛型，它可以是任意字符，只是作为一个占位符。
* 声明时用什么字符，使用时就得用什么
*/
public static <T> T fillBean(HttpServletRequest request,Class<T> clazz){
//1.定义一个T类型的javabean
T bean = null;
try{
//2.实例化bean对象
bean = clazz.newInstance();
//3.使用BeanUtils的方法进行封装
BeanUtils.populate(bean, request.getParameterMap());
//4.返回
return bean;
}catch(Exception e){
throw new RuntimeException(e);
}
}
/**
* 封装表单中的数据到javabean中,带有日期格式数据
* @param request 表单中的数据
* @param clazz 封装到哪个javabean
* @return 封装好的javabean对象
* 使用的是泛型。泛型必须先声明再使用。声明必须在返回值之前
* T指的就是泛型，它可以是任意字符，只是作为一个占位符。
* 声明时用什么字符，使用时就得用什么
*/
public static <T> T fillBean(HttpServletRequest request,Class<T> clazz,String datePattern){
//1.定义一个T类型的javabean
T bean = null;
try{
//2.实例化bean对象
bean = clazz.newInstance();
//3.创建日期转换器对象
DateConverter converter = new DateConverter();
converter.setPattern(datePattern);
//4.设置转换器
ConvertUtils.register(converter, Date .class);
//5.使用BeanUtils的方法进行封装
BeanUtils.populate(bean, request.getParameterMap());
//6.返回
return bean;
}catch(Exception e){
throw new RuntimeException(e);
}
}
/**
* 文件上传的表单填充
* @param items 文件上传的表单项
* @param clazz 要封装的实体类字节码
* @param <T> 泛型
* @return 返回封装好的对象
*/
public static <T> T fillBean(List<FileItem> items,Class<T> clazz){
//1.定义一个T类型的javabean
T bean = null;
try{
//2.实例化Bean
bean = clazz.newInstance();
//3.遍历文件项集合
for(FileItem item : items){
//4.判断是不是文件
if(item.isFormField()){//表单字段，不是文件
//5.取出表单中的name属性取值
String fieldName = item.getFieldName();
//6.使用UTF-8字符集取出表单数据
String fieldValue = item.getString("UTF-8");
//7.创建属性描述器对象
PropertyDescriptor pd = new PropertyDescriptor(fieldName,clazz);
//8.获取写方法(setXXX方法）
Method method = pd.getWriteMethod();
//9.把数据填充到bean中
method.invoke(bean,fieldValue);
}
}
//10.返回
return bean;
}catch(Exception e){
throw new RuntimeException(e);
}
}
}上面的 BeanUtil是对BeanUtils的一个再封装，简化操作
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class,"yyyy-MM-dd");
// 调用业务层接口
CompanyService companyService = new CompanyServiceImpl();
companyService.save(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}修改和删除功能
update
- 查询要修改的ID
- 将数据加载到指定区域，供页面获取
- 跳转页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<!-- 内容头部 -->
<section class="content-header">
<h1>
企业管理
<small>编辑企业信息</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
<li><a href="all-order-manage-list.html">企业管理</a></li>
<li class="active">编辑企业信息</li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!--订单信息-->
<div class="panel panel-default">
<div class="panel-heading">企业信息</div>
<form id="editForm" action="${ctx}/store/company?operation=edit" method="post">
<input type="hidden" name="id" value="${company.id}">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">企业名称</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="企业名称" name="name" value="${company.name}">
</div>
<div class="col-md-2 title">营业执照</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="营业执照" name="licenseId" value="${company.licenseId}">
</div>
<div class="col-md-2 title">所在城市</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="所在地" name="city" value="${company.city}">
</div>
<div class="col-md-2 title">企业地址</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="企业地址" name="address" value="${company.address}">
</div>
<div class="col-md-2 title">法人代表</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="法人代表" name="representative" value="${company.representative}">
</div>
<div class="col-md-2 title">联系电话</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="联系电话" name="phone" value="${company.phone}">
</div>
<div class="col-md-2 title">公司规模</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="公司规模" name="companySize" value="${company.companySize}">
</div>
<div class="col-md-2 title">所属行业</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="所属行业" name="industry" value="${company.industry}">
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<select class="form-control select2" name="state" style="width: 100%;">
<option value="0" ${company.state==0 ? 'selected':''}>未审核</option>
<option value="1" ${company.state==1 ? 'selected':''}>已审核</option>
</select>
<input type="text" class="form-control" placeholder="状态" name="state" value="${company.state}">
</div>
<div class="col-md-2 title rowHeight2x">备注</div>
<div class="col-md-4 data rowHeight2x">
<textarea class="form-control" rows="3" name="remarks">${company.remarks}</textarea>
</div>
</div>
</form>
</div>
<!--订单信息/-->
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
<!--工具栏/-->
</section>
<!-- 正文区域 /-->
</div>
<!-- 内容区域 /-->
</body>
</html>private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 调用业务层方法查询数据
CompanyService companyService = new CompanyServiceImpl();
Company company = companyService.findById(id);
request.setAttribute("company",company);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class,"yyyy-MM-dd");
// 调用业务层接口
CompanyService companyService = new CompanyServiceImpl();
companyService.update(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}删除
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/store/company?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/store/company?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class);
// 调用业务层接口
CompanyService companyService = new CompanyServiceImpl();
companyService.delete(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}优化
通过上面的代码我们可以发现，Servlet中每个方法都需要new一个CompanyService对象，因此我们可以把它抽取出来
- 在controller包下创建一个BaseServlet类，让它继承HttpServlet
- 成员变量就可以写上需要反复创建的对象
- 继承了HttpServlet类，所以可以重写init方法，在init方法中完成对成员变量的赋值
- 让CompanyServlet继承BaseServlet（因为BaseServlet继承了HttpServlet，所以CompanyServlet同样可以使用HttpServlet中的方法）
BaseServlet
package top.hellocode.web.controller;
import top.hellocode.service.store.CompanyService;
import top.hellocode.service.store.impl.CompanyServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月19日 22:04
*/
public class BaseServlet extends HttpServlet {
protected CompanyService companyService;
@Override
public void init() throws ServletException {
companyService = new CompanyServiceImpl();
}
}CompanyServlet
package top.hellocode.web.controller.company;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.store.Company;
import top.hellocode.service.store.CompanyService;
import top.hellocode.service.store.impl.CompanyServiceImpl;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月16日 21:34
*/
// uri:/store/company?operation=list
@WebServlet("/store/company")
public class CompanyServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// CompanyService companyService = new CompanyServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = companyService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class,"yyyy-MM-dd");
// 调用业务层接口
// CompanyService companyService = new CompanyServiceImpl();
companyService.save(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 调用业务层方法查询数据
// CompanyService companyService = new CompanyServiceImpl();
Company company = companyService.findById(id);
request.setAttribute("company",company);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/company/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class,"yyyy-MM-dd");
// 调用业务层接口
// CompanyService companyService = new CompanyServiceImpl();
companyService.update(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Company company = BeanUtil.fillBean(request,Company.class);
// 调用业务层接口
// CompanyService companyService = new CompanyServiceImpl();
companyService.delete(company);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/company?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}部门模块
- 在企业中，部门可能存在一级部门、二级部门
- 在开发时，可以先按单表进行开发，后面再把相应的关系加上（自关联）
- 用户模块属于系统功能，放在system下
分析
private String id;
private String deptName; // 部门名称
private String parentId; // 所属部门id
private Integer state; // 状态- 基本操作：参看单表增删改查
注意
- 替换时注意大小写匹配
- 替换前要清晰认知替换的内容是什么，同时规范命名习惯，避免出错
部门模块自连接
- 在domain中加一个字段
private Dept parent 在映射配置文件中配置关系映射
<association property="parent" javaType="top.hellocode.domain.system.Dept" column="parent_id" select="top.hellocode.dao.system.DeptDao.findById" />
注意：添加页和修改页进入前需要加载到列表数据
代码
add
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>部门管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑部门</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/system/dept?operation=save" method="post">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">部门名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="部门名称" name="deptName" value="${dept.deptName}">
</div>
<div class="col-md-2 title">所属部门</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="parentId">
<option value="">请选择</option>
<c:forEach items="${deptList}" var="item">
<option ${dept.parent.id == item.id ?'selected':''} value="${item.id}">${item.deptName}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-10 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${dept.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${dept.state==1?'checked':''} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>list
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/system/dept?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>部门管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">部门列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/system/dept?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">部门名称</th>
<th class="sorting">所属部门</th>
<th class="sorting">状态</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="dept">
<tr>
<td><input type="checkbox" name="id" value="${dept.id }"/></td>
<td>${dept.deptName }</td>
<td>${dept.parent.deptName }</td>
<td>${dept.state ==0?'未启用':'使用中'}</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/system/dept?operation=toEdit&id=${dept.id}"'>编辑</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/system/dept?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html>update
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>部门管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑部门</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/system/dept?operation=edit" method="post">
<input type="hidden" name="id" value="${dept.id}">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">部门名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="部门名称" name="deptName" value="${dept.deptName}">
</div>
<div class="col-md-2 title">所属部门</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="parentId">
<option value="">请选择</option>
<c:forEach items="${deptList}" var="item">
<option ${dept.parent.id == item.id ?'selected':''} value="${item.id}">${item.deptName}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-10 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${dept.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${dept.state==1?'checked':''} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>DeptDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.DeptDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.Dept">
<id column="dept_id" jdbcType="VARCHAR" property="id"/>
<result column="dept_name" jdbcType="VARCHAR" property="deptName"/>
<result column="parent_id" jdbcType="VARCHAR" property="parentId"/>
<result column="state" jdbcType="DECIMAL" property="state"/>
<association
property="parent"
javaType="top.hellocode.domain.system.Dept"
column="parent_id"
select="top.hellocode.dao.system.DeptDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
dept_id, dept_name, parent_id, state
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_dept
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_dept
where dept_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_dept where dept_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.Dept">
insert into ss_dept (dept_id, dept_name, parent_id,state)
values (#{id,jdbcType=VARCHAR}, #{deptName,jdbcType=VARCHAR}, #{parentId,jdbcType=VARCHAR},#{state,jdbcType=DECIMAL})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.Dept">
update ss_dept
set dept_name = #{deptName,jdbcType=VARCHAR},
parent_id = #{parentId,jdbcType=VARCHAR},
state = #{state,jdbcType=DECIMAL}
where dept_id = #{id,jdbcType=VARCHAR}
</update>
</mapper>DeptServlet
package top.hellocode.web.controller.system;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Dept;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月20日 22:56
*/
// uri:/system/dept?operation=list
@WebServlet("/system/dept")
public class DeptServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// DeptService deptService = new DeptServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = deptService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/dept/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/dept/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Dept dept = BeanUtil.fillBean(request,Dept.class,"yyyy-MM-dd");
// 调用业务层接口
// DeptService deptService = new DeptServiceImpl();
deptService.save(dept);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/dept?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList",all);
// 调用业务层方法查询数据
Dept dept = deptService.findById(id);
request.setAttribute("dept",dept);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/dept/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Dept dept = BeanUtil.fillBean(request,Dept.class,"yyyy-MM-dd");
// 调用业务层接口
// DeptService deptService = new DeptServiceImpl();
deptService.update(dept);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/dept?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Dept dept = BeanUtil.fillBean(request,Dept.class);
// 调用业务层接口
// DeptService deptService = new DeptServiceImpl();
deptService.delete(dept);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/dept?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}用户模块
- 同样属于系统模块(system)
private String id;
private String email; // 邮箱
private String username; // 姓名
private String password; // 密码
private Long state; // 状态
private String gender; // 性别
private String telephone; // 电话
private Date birthday; // 出生年月
private Date joinDate; // 入职时间
private String deptId; // 部门id
private Dept dept;保存
- 在业务层save之前，需要对密码进行加密（MD5）
- 使用工具类：MD5Util
package top.hellocode.utils;
import java.security.MessageDigest;
import sun.misc.BASE64Encoder;
/**
* 密码加密工具类
* @author 黑马程序员
* @Company http://www.itheima.com
*/
public class MD5Util {
/**
* 密码加密
* @param password
* @return
* @throws Exception
*/
public static String md5(String password){
try {
//1.创建加密对象
MessageDigest md5 = MessageDigest.getInstance("md5");
//2.加密密码
byte[] by = md5.digest(password.getBytes());
//3.创建编码对象
BASE64Encoder encoder = new BASE64Encoder();
//4.对结果编码
return encoder.encode(by);
}catch (Exception e){
throw new RuntimeException(e);
}
}
}修改
- 需要对能修改的内容进行限制
- 比如：性别、出生日期、入职日期等并不值得修改
三种方案
- 读取库中的信息，覆盖现有的数据
- 修改update语句（只对需要修改的进行操作）
- 不显示不需要修改的数据
<update id="update" parameterType="top.hellocode.domain.system.User">
update ss_user
user_name = #{userName,jdbcType=VARCHAR},
state = #{state,jdbcType=DECIMAL},
gender = #{gender,jdbcType=CHAR},
telephone = #{telephone,jdbcType=VARCHAR},
dept_id = #{deptId,jdbcType=VARCHAR}
where user_id = #{id,jdbcType=VARCHAR}
</update>理论上应该提供两个update方法，一个全，一个部分
list
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/system/user?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
function roleList() {
var id = getCheckId()
if(id) {
location.href="${ctx}/system/user?operation=userRoleList&id="+id;
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>用户管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">用户列表</h3>
</div>
<div class="box-body">
<div class="table-box">
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/system/user?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
<button type="button" class="btn btn-default" title="角色" onclick="roleList()"><i class="fa fa-user-circle-o"></i> 角色</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;"></th>
<th class="sorting">邮箱</th>
<th class="sorting">用户名</th>
<th class="sorting">性别</th>
<th class="sorting">所属部门</th>
<th class="sorting">状态</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="item" varStatus="status">
<tr>
<td><input name="ids" value="${item.id}" type="checkbox"></td>
<td>${item.email }</td>
<td>${item.userName}</td>
<td>${item.gender ==0?'男':'女'}</td>
<td>${item.dept.deptName }</td>
<td>${item.state ==0?'停用':'启用'}</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/system/user?operation=toEdit&id=${item.id}"'>编辑</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/system/user?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html>add
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<!-- 内容头部 -->
<section class="content-header">
<h1>
系统管理
<small>用户管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="${ctx}"><i class="fa fa-dashboard"></i> 首页</a></li>
<li><a href="${ctx}/system/user?operation=list">用户列表</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!--订单信息-->
<div class="panel panel-default">
<div class="panel-heading">用户信息</div>
<form id="editForm" action="${ctx}/system/user?operation=save" method="post">
<input type="hidden" id="id" name="id" value="">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">邮箱</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="邮箱" name="email">
</div>
<div class="col-md-2 title">密码</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="密码" name="password">
</div>
<div class="col-md-2 title">姓名</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="姓名" name="userName">
</div>
<div class="col-md-2 title">所在部门</div>
<div class="col-md-4 data">
<select class="form-control" onchange="document.getElementById('deptName').value=this.options[this.selectedIndex].text" name="deptId">
<option value="">请选择</option>
<c:forEach items="${deptList}" var="item">
<option ${requestScope.user.deptId == item.id ?'selected':''} value="${item.id}">${item.deptName}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">性别</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${requestScope.user.gender==0?'checked':''} name="gender" value="0">男</label></div>
<div class="radio"><label><input type="radio" ${requestScope.user.gender==1?'checked':''} name="gender" value="1">女</label></div>
</div>
</div>
<div class="col-md-2 title">出生年月</div>
<div class="col-md-4 data">
<div class="input-group date">
<div class="input-group-addon">
<i class="fa fa-calendar"></i>
</div>
<input type="text" placeholder="出生年月" class="form-control pull-right" name="birthday"
value="${requestScope.user.birthday}" id="datepicker1">
</div>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${requestScope.user.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${requestScope.user.state==1?'checked':'checked'} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title">电话</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="电话" name="telephone" value="${requestScope.user.telephone}">
</div>
<div class="col-md-2 title">入职时间</div>
<div class="col-md-4 data">
<div class="input-group date">
<div class="input-group-addon">
<i class="fa fa-calendar"></i>
</div>
<input type="text" placeholder="入职时间" name="joinDate" class="form-control pull-right"
value="${requestScope.user.joinDate}" id="datepicker">
</div>
</div>
</div>
</form>
</div>
<!--订单信息/-->
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
<!--工具栏/-->
</section>
<!-- 正文区域 /-->
</div>
<!-- 内容区域 /-->
</body>
<script src="${ctx}/plugins/datepicker/bootstrap-datepicker.js"></script>
<script src="${ctx}/plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
<link rel="stylesheet" href="${ctx}/css/style.css">
<script>
$('#datepicker').datepicker({
autoclose: true,
format: 'yyyy-mm-dd'
});
$('#datepicker1').datepicker({
autoclose: true,
format: 'yyyy-mm-dd'
});
</script>
</html>update
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<!-- 内容头部 -->
<section class="content-header">
<h1>
系统管理
<small>用户管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="${ctx}"><i class="fa fa-dashboard"></i> 首页</a></li>
<li><a href="${ctx}/system/user/list.do">用户列表</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!--订单信息-->
<div class="panel panel-default">
<div class="panel-heading">用户信息</div>
<form id="editForm" action="${ctx}/system/user?operation=edit" method="post">
<div class="row data-type" style="margin: 0px">
<input type="hidden" name="id" value="${user.id}">
<div class="col-md-2 title">邮箱</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="邮箱" name="email" value="${user.email}">
</div>
<div class="col-md-2 title">密码</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="密码" name="password" value="${user.password}">
</div>
<div class="col-md-2 title">姓名</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="用户名称" name="userName" value="${user.userName}">
</div>
<div class="col-md-2 title">所在部门</div>
<div class="col-md-4 data">
<select class="form-control" onchange="document.getElementById('deptName').value=this.options[this.selectedIndex].text" name="deptId">
<option value="">请选择</option>
<c:forEach items="${deptList}" var="item">
<option ${user.deptId == item.id ?'selected':''} value="${item.id}">${item.deptName}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">性别</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${user.gender==0?'checked':''} name="gender" value="0">男</label></div>
<div class="radio"><label><input type="radio" ${user.gender==1?'checked':''} name="gender" value="1">女</label></div>
</div>
</div>
<div class="col-md-2 title">出生日期</div>
<div class="col-md-4 data">
<div class="input-group date">
<div class="input-group-addon">
<i class="fa fa-calendar"></i>
</div>
<input type="text" placeholder="出生年月" class="form-control pull-right" name="birthday"
value="<fmt:formatDate value="${user.birthday}" pattern="yyyy-MM-dd"/>" id="datepicker1">
</div>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${user.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${user.state==1?'checked':''} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title">电话</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="电话" name="telephone" value="${user.telephone}">
</div>
<div class="col-md-2 title">入职日期</div>
<div class="col-md-4 data">
<div class="input-group date">
<div class="input-group-addon">
<i class="fa fa-calendar"></i>
</div>
<input type="text" placeholder="入职时间" name="joinDate" class="form-control pull-right"
value="<fmt:formatDate value="${user.joinDate}" pattern="yyyy-MM-dd"/>" id="2">
</div>
</div>
</div>
</form>
</div>
<!--订单信息/-->
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
<!--工具栏/-->
</section>
<!-- 正文区域 /-->
</div>
<!-- 内容区域 /-->
</body>
<script src="${ctx}/plugins/datepicker/bootstrap-datepicker.js"></script>
<script src="${ctx}/plugins/datepicker/locales/bootstrap-datepicker.zh-CN.js"></script>
<link rel="stylesheet" href="${ctx}/css/style.css">
<script>
$('#datepicker').datepicker({
autoclose: true,
format: 'yyyy-mm-dd'
});
$('#datepicker1').datepicker({
autoclose: true,
format: 'yyyy-mm-dd'
});
</script>
</html>UserDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.UserDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.User">
<id column="user_id" jdbcType="VARCHAR" property="id"/>
<result column="email" jdbcType="VARCHAR" property="email"/>
<result column="user_name" jdbcType="VARCHAR" property="userName"/>
<result column="password" jdbcType="VARCHAR" property="password"/>
<result column="state" jdbcType="DECIMAL" property="state"/>
<result column="gender" jdbcType="CHAR" property="gender"/>
<result column="telephone" jdbcType="VARCHAR" property="telephone"/>
<result column="birthday" jdbcType="VARCHAR" property="birthday"/>
<result column="join_date" jdbcType="VARCHAR" property="joinDate"/>
<result column="dept_id" jdbcType="VARCHAR" property="deptId"/>
<association
property="dept"
column="dept_id"
javaType="top.hellocode.domain.system.Dept"
select="top.hellocode.dao.system.DeptDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
user_id, email, user_name, password, state, gender, telephone, birthday, join_date, dept_id
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_user
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_user
where user_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_user where user_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.User">
insert into ss_user (user_id, email, user_name, password, state,
gender, telephone, birthday, join_date, dept_id
)
values (#{id,jdbcType=VARCHAR}, #{email,jdbcType=VARCHAR}, #{userName,jdbcType=VARCHAR},
#{password,jdbcType=VARCHAR}, #{state,jdbcType=DECIMAL}, #{gender,jdbcType=CHAR},
#{telephone,jdbcType=VARCHAR}, #{birthday,jdbcType=VARCHAR}, #{joinDate,jdbcType=VARCHAR},
#{deptId,jdbcType=VARCHAR}
)
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.User">
update ss_user
SET
user_name = #{userName,jdbcType=VARCHAR},
state = #{state,jdbcType=DECIMAL},
gender = #{gender,jdbcType=CHAR},
telephone = #{telephone,jdbcType=VARCHAR},
dept_id = #{deptId,jdbcType=VARCHAR}
where user_id = #{id,jdbcType=VARCHAR}
</update>
</mapper>UserServiceImpl
package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.UserDao;
import top.hellocode.domain.system.User;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.UserService;
import top.hellocode.utils.MD5Util;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月20日 22:54
*/
public class UserServiceImpl implements UserService {
@Override
public void save(User user) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
user.setId(id);
// 密码加密
user.setPassword(MD5Util.md5(user.getPassword()));
// 调用Dao层操作
userDao.save(user);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(User user) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession,UserDao.class);
// 调用Dao层操作
userDao.delete(user);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(User user) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession,UserDao.class);
// 调用Dao层操作
userDao.update(user);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public User findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession,UserDao.class);
// 调用Dao层操作
return userDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<User> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession,UserDao.class);
// 调用Dao层操作
return userDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession,UserDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<User> all = userDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}UserServlet
package top.hellocode.web.controller.system;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Dept;
import top.hellocode.domain.system.User;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月20日 22:56
*/
// uri:/system/user?operation=list
@WebServlet("/system/user")
public class UserServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// UserService userService = new UserServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = userService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request,User.class,"yyyy-MM-dd");
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.save(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList",all);
// 调用业务层方法查询数据
User user = userService.findById(id);
request.setAttribute("user",user);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request,User.class,"yyyy-MM-dd");
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.update(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request,User.class);
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.delete(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}题目模块
数据库设计范式
- 范式：规范的形式，应用于各个行业的标准化
数据库具有五种设计范式，常用第一范式（1NF）、第二范式（2NF）、第三范式（3NF）
- 一范式：列的原子性，每个列都应该不可再分
- 二范式：表中只有唯一一个主键，不存在多主键
- 三范式：不依赖非主键字段及更深层次的依赖
反三范式
- 允许少量数据的冗余，提高查询速度
每一种范式都有对应的使用场景，具体应该根据业务需求选择合适的范式
数据库设计工具--PD
- PowerDesigner是一款功能强大的建模软件，提供强大的元数据管理功能，可以帮助用户构建关键信息的全方位视图，创建多种类型的模型，包括概念数据模型、物理数据模型、面向对象模型等等，同时集成了数据管理、BI、数据集成和数据整合多种功能
- 具体下载安装步骤可以在网上搜索
- 主要用来设计数据库，可以帮我们建立各个表之间的关系，快速梳理表间关系
- 它在设计完对应的表之后，还可以自动生成对应的SQL语句，帮助我们快速构建数据库表结构
学科模块
字段
private String id;
private String name; // 学科名称
private String remark; // 描述
private String state; // 状态
private Date createTime; // 创建时间过滤器
package top.hellocode.web.filters;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
@WebFilter(value = "/*",initParams={@WebInitParam(name = "encoding",value = "UTF-8")})
public class CharacterEncodingFilter implements Filter {
private FilterConfig filterConfig;
/**
* 初始化方法，获取过滤器的配置对象
* @param filterConfig
* @throws ServletException
*/
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
//1.定义和协议相关的请求和响应对象
HttpServletRequest request ;
HttpServletResponse response;
try{
//2.把参数转换成协议相关的对象
request = (HttpServletRequest)req;
response = (HttpServletResponse)resp;
//3.获取配置的字符集
String encoding = filterConfig.getInitParameter("encoding");
//4.设置请求参数的字符集
request.setCharacterEncoding(encoding);
//5.设置响应对象输出响应正文时的字符集
response.setContentType("text/html;charset=UTF-8");
//6.放行
chain.doFilter(request,response);
}catch (Exception e){
e.printStackTrace();
}
}
@Override
public void destroy() {
//可以做一些清理操作
}
}add.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>学科管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">新增学科</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/course?operation=save" method="post">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">学科名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="学科名称" name="name">
</div>
<div class="col-md-2 title">学科简介</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="学科简介" name="remark">
</div>
<div class="col-md-2 title">是否显示</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" selected>启用</option>
<option value="0">禁用</option>
</select>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>list.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/store/course?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>学科管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">学科列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/store/course?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">序号</th>
<th class="sorting">学科名称</th>
<th class="sorting">学科简介</th>
<th class="sorting">学科状态</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="course" varStatus="status">
<tr class="odd" onmouseover="this.className='highlight'" onmouseout="this.className='odd'" >
<td><input type="checkbox" name="id" value="${course.id}"/></td>
<td>${status.index+1}</td>
<td>${course.name}</td>
<td>${course.remark}</td>
<td>${course.state eq "1" ? "<font color='green'>正常</font>" : "<font color='red'>禁用</font>"}</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/course?operation=toEdit&id=${course.id}"'>编辑</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/store/course?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html>update.jsp
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>学科管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑学科</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/course?operation=edit" method="post">
<input type="hidden" name="id" value="${course.id}">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">学科名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="学科名称" name="name" value="${course.name}">
</div>
<div class="col-md-2 title">学科简介</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="学科简介" name="remark" value="${course.remark}">
</div>
<div class="col-md-2 title">是否显示</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" ${course.state == "1" ? 'selected':''}>启用</option>
<option value="0" ${course.state == "0" ? 'selected':''}>禁用</option>
</select>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>CourseDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.store.CourseDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.store.Course">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<result column="state" jdbcType="VARCHAR" property="state"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime"/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, name, state, remark, create_time
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_course
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_course
where id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from st_course where id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.store.Course">
insert into st_course (id, name, remark,
state, create_time)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR},
#{state,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP}
)
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.store.Course">
update st_course
set name = #{name,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR},
state = #{state,jdbcType=VARCHAR}
where id = #{id,jdbcType=VARCHAR}
</update>
</mapper>注意：
- 创建时间、操作时间、修改时间等时效性日期或时间数据不从页面收集，直接在业务层添加
- 时间类数据通常用于数据记录留痕，此类数据不允许修改
- 最后一次登录时间类的数据也不允许修改，每次读取登录信息中最后一条数据的时间即可
目录模块
- 同用户模块开发（一对多）
字段
private String id;
private String name; // 名称
private String remark; // 描述
private String state; // 状态
private Date createTime; // 创建时间
private String courseId; // 学科id
private Course course;页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>目录管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">新增目录</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/catalog?operation=save" method="post">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">所属学科</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="courseId" onchange="document.getElementById('courseName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${courseList}" var="item">
<option ${catalog.courseId == item.id ?'selected':''} value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">目录名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="目录名称" name="name">
</div>
<div class="col-md-2 title">目录简介</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="目录简介" name="remark">
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" selected>启用</option>
<option value="0">禁用</option>
</select>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/store/catalog?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>目录管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">目录列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/store/catalog?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">目录名称</th>
<th class="sorting">目录简介</th>
<th class="sorting">当前状态</th>
<th class="sorting">所属学科</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="catalog" varStatus="status">
<tr class="odd" onmouseover="this.className='highlight'" onmouseout="this.className='odd'" >
<td><input type="checkbox" name="id" value="${catalog.id}"/></td>
<td>${catalog.name}</td>
<td>${catalog.remark}</td>
<td>${catalog.state eq "1" ? "<font color='green'>使用中</font>" : "<font color='red'>已禁用</font>"}</td>
<td>${catalog.course.name}</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/catalog?operation=toEdit&id=${catalog.id}"'>编辑</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/store/catalog?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>目录管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑目录</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/catalog?operation=edit" method="post">
<input type="hidden" name="id" value="${catalog.id}">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">所属学科</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="courseId" onchange="document.getElementById('courseName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${courseList}" var="item">
<option ${catalog.courseId == item.id ?'selected':''} value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">目录名称</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="目录名称" name="name" value="${catalog.name}">
</div>
<div class="col-md-2 title">目录简介</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="目录简介" name="remark" value="${catalog.remark}">
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-10 data line-height36">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" ${catalog.state == "1" ? 'selected':''}>启用</option>
<option value="0" ${catalog.state == "0" ? 'selected':''}>禁用</option>
</select>
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.store.CatalogDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.store.Catalog">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<result column="state" jdbcType="VARCHAR" property="state"/>
<result column="course_id" jdbcType="VARCHAR" property="courseId"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime"/>
<association property="course" column="course_id" javaType="top.hellocode.domain.store.Course"
select="top.hellocode.dao.store.CourseDao.findById"></association>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, name, remark , state , create_time , course_id
</sql>
<!--配置查询所有-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_catalog
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_catalog
where id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from st_catalog where id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.store.Catalog">
insert into st_catalog (id, name, remark , state , create_time , course_id)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR},
#{state,jdbcType=VARCHAR} , #{createTime,jdbcType=TIMESTAMP}, #{courseId,jdbcType=VARCHAR})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.store.Catalog">
update st_catalog
set name = #{name,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR},
state = #{state,jdbcType=VARCHAR},
course_id = #{courseId,jdbcType=VARCHAR}
where id = #{id,jdbcType=VARCHAR}
</update>
</mapper>题目模块
题目/题干模块快速开发
字段
private String id; // 题目id
private String companyId; // 所属企业
private String catalogId; // 所属目录
private String remark; // 题目简介/题目描述
private String subject; // 题干正文
private String picture; // 图片（可选，快速开发中先不添加此字段）
private String analysis; // 题目分析
private String type; // 题目类型 1：单选 2：多选 3：简答
private String difficulty; // 难易程度 1：极易 2：容易 3：普通 4：困难 5：极难
private String isClassic; // 是否经典面试题 0：否 1：是
private String state; // 题目状态 0：不可用 1：可用（只有审核通过的题目可以设置）
private String reviewStatus; // 审核状态 -1：审核不通过 1：审核通过
private Date createTime; // 创建时间
private Company company;
private Catalog catalog;页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>题目管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">新增题目</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/question?operation=save" method="post" enctype="multipart/form-data">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">所属企业</div>
<div class="col-md-4 data">
<select class="form-control" name="companyId" onchange="document.getElementById('courseName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${companyList}" var="item">
<option value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">所属类别</div>
<div class="col-md-4 data">
<select class="form-control" name="catalogId" onchange="document.getElementById('catalogName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${catalogList}" var="item">
<option value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title rowHeight2x">题目简介</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="remark"></textarea>
</div>
<div class="col-md-2 title rowHeight2x">题干</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="subject"></textarea>
</div>
<div class="col-md-2 title">题干图片</div>
<div class="col-md-10 data ">
<input type="file" class="form-control" placeholder="题干图片" name="picture">
</div>
<div class="col-md-2 title rowHeight2x">题目分析</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="analysis"></textarea>
</div>
<div class="col-md-2 title">题目类型</div>
<div class="col-md-4 data">
<select class="form-control" name="type">
<option value="">请选择</option>
<option value="1" selected>单选题</option>
<option value="2">多选题</option>
<option value="3">简答题</option>
</select>
</div>
<div class="col-md-2 title">难易程度</div>
<div class="col-md-4 data">
<select class="form-control" name="difficulty">
<option value="">请选择</option>
<option value="1" selected>★</option>
<option value="2">★★</option>
<option value="3">★★★</option>
<option value="4">★★★★</option>
<option value="5">★★★★★</option>
</select>
</div>
<div class="col-md-2 title">是否经典</div>
<div class="col-md-4 data">
<select class="form-control" name="isClassic">
<option value="">请选择</option>
<option value="1" selected>经典题</option>
<option value="0">普通题</option>
</select>
</div>
<div class="col-md-2 title">题目状态</div>
<div class="col-md-4 data">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" selected>启用</option>
<option value="0">禁用</option>
</select>
</div>
</div>
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/store/question?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>题目管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">题目列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/store/question?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="测试文件上传" onclick='location.href="${ctx}/store/question?operation=toTestUpload"'><i class="fa fa-file-o"></i> 测试文件上传</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
<%--
<button type="button" class="btn btn-default" title="上传题目" onclick='location.href="${ctx}/store/question?operation=toImport"'><i class="fa fa-adn"></i> 上传题目</button>
--%>
<button type="button" class="btn btn-default" title="导出题目" onclick=location.href="${ctx}/store/question?operation=toExport"> <i class="fa fa-download"></i>导出题目</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">企业</th>
<th class="sorting">类别</th>
<th class="sorting">题目</th>
<th class="sorting">类型</th>
<th class="sorting">难度</th>
<th class="sorting">经典面试题</th>
<th class="sorting">状态</th>
<th class="sorting">审核结果</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="o" varStatus="status">
<tr class="odd" onmouseover="this.className='highlight'" onmouseout="this.className='odd'" >
<td><input type="checkbox" name="id" value="${o.id}"/></td>
<td>${o.company.name}</td>
<td>${o.catalog.name}</td>
<td>${o.subject}</td>
<td>
<c:choose>
<c:when test="${o.type eq '1'}">单选</c:when>
<c:when test="${o.type eq '2'}">多选</c:when>
<c:when test="${o.type eq '3'}">简答</c:when>
</c:choose>
</td>
<td>
<c:forEach begin="1" end="${o.difficulty}">
★
</c:forEach>
</td>
<td>${o.isClassic eq "1" ? "经典题":"普通题"}</td>
<td>${o.state eq "1" ? "<font color='green'>启用</font>" : "<font color='red'>禁用</font>"}</td>
<td>
<c:choose>
<c:when test="${o.reviewStatus eq '1'}"><font color="green">审核通过</font></c:when>
<c:when test="${o.reviewStatus eq '0'}">审核中</c:when>
<c:when test="${o.reviewStatus eq '-1'}"><font color="red">审核不通过</font></c:when>
</c:choose>
</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/question?operation=toEdit&id=${o.id}"'>编辑</button>
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/questionItem?operation=list&questionId=${o.id}"'>配置选项</button>
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/question?operation=toExamine&id=${o.id}"'>审核</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/store/question?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>题目管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑题目</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/question?operation=edit" method="post" enctype="multipart/form-data">
<input type="hidden" name="id" value="${question.id}">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">所属企业</div>
<div class="col-md-4 data">
<select class="form-control" name="companyId" onchange="document.getElementById('courseName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${companyList}" var="item">
<option value="${item.id}" ${question.companyId eq item.id ? 'selected' : ''}>${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">所属类别</div>
<div class="col-md-4 data">
<select class="form-control" name="catalogId" onchange="document.getElementById('catalogName').value=this.options[this.selectedIndex].text">
<option value="">请选择</option>
<c:forEach items="${catalogList}" var="item">
<option value="${item.id}" ${question.catalogId eq item.id ? 'selected' : ''}>${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title rowHeight2x">题目简介</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="remark">${question.remark}</textarea>
</div>
<div class="col-md-2 title rowHeight2x">题干</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="subject">${question.subject}</textarea>
</div>
<div class="col-md-2 title">题干图片</div>
<div class="col-md-10 data ">
<input type="file" class="form-control" placeholder="题干图片" name="picture" value="${question.picture}">
</div>
<c:if test="${question.picture.length() > 0}">
<div class="col-md-2 title">题干图片</div>
<div class="col-md-10 data ">
<img src="${ctx}/upload/${question.picture}"/>
</div>
</c:if>
<div class="col-md-2 title rowHeight2x">题目分析</div>
<div class="col-md-10 data rowHeight2x">
<textarea class="form-control" rows="3" name="analysis">${question.analysis}</textarea>
</div>
<div class="col-md-2 title">题目类型</div>
<div class="col-md-4 data">
<select class="form-control" name="type">
<option value="">请选择</option>
<option value="1" ${question.type eq '1' ? 'selected' : ''}>单选题</option>
<option value="2" ${question.type eq '2' ? 'selected' : ''} >多选题</option>
<option value="3" ${question.type eq '3' ? 'selected' : ''}>简答题</option>
</select>
</div>
<div class="col-md-2 title">难易程度</div>
<div class="col-md-4 data">
<select class="form-control" name="difficulty">
<option value="">请选择</option>
<option value="1" ${question.difficulty eq '1' ? 'selected' : ''}>★</option>
<option value="2" ${question.difficulty eq '2' ? 'selected' : ''}>★★</option>
<option value="3" ${question.difficulty eq '3' ? 'selected' : ''}>★★★</option>
<option value="4" ${question.difficulty eq '4' ? 'selected' : ''}>★★★★</option>
<option value="5" ${question.difficulty eq '5' ? 'selected' : ''}>★★★★★</option>
</select>
</div>
<div class="col-md-2 title">是否经典</div>
<div class="col-md-4 data">
<select class="form-control" name="isClassic">
<option value="">请选择</option>
<option value="1" ${question.isClassic eq '1' ? 'selected' : ''}>经典题</option>
<option value="0" ${question.isClassic eq '0' ? 'selected' : ''}>普通题</option>
</select>
</div>
<div class="col-md-2 title">题目状态</div>
<div class="col-md-4 data">
<select class="form-control" name="state">
<option value="">请选择</option>
<option value="1" ${question.state eq '1' ? 'selected' : ''}>启用</option>
<option value="0" ${question.state eq '0' ? 'selected' : ''}>禁用</option>
</select>
</div>
</div>
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
题库管理
<small>题目管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">文件上传测试</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/store/question?operation=testUpload" method="post" enctype="multipart/form-data">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">题干图片</div>
<div class="col-md-10 data ">
<input type="file" class="form-control" placeholder="题干图片" name="picture">
</div>
</div>
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>QuestionDao.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.store.QuestionDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.store.Question">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="company_id" jdbcType="VARCHAR" property="companyId"/>
<result column="catalog_id" jdbcType="VARCHAR" property="catalogId"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<result column="subject" jdbcType="VARCHAR" property="subject"/>
<result column="analysis" jdbcType="VARCHAR" property="analysis"/>
<result column="type" jdbcType="VARCHAR" property="type"/>
<result column="difficulty" jdbcType="VARCHAR" property="difficulty"/>
<result column="is_classic" jdbcType="VARCHAR" property="isClassic"/>
<result column="state" jdbcType="VARCHAR" property="state"/>
<result column="review_status" jdbcType="VARCHAR" property="reviewStatus"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime"/>
<result column="picture" jdbcType="VARCHAR" property="picture"/>
<association
property="company"
column="company_id"
javaType="top.hellocode.domain.store.Course"
select="top.hellocode.dao.store.CompanyDao.findById"/>
<association
property="catalog"
column="catalog_id"
javaType="top.hellocode.domain.store.Course"
select="top.hellocode.dao.store.CatalogDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, catalog_id, company_id, remark,subject,analysis,type, difficulty, is_classic,
state, review_status, create_time, picture
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_question
order by create_time desc
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_question
where id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from st_question where id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.store.Question">
insert into st_question(id, company_id, catalog_id, remark, subject, analysis, type,
difficulty, is_classic, state, review_status, create_time ,picture )
values (#{id,jdbcType=VARCHAR}, #{companyId,jdbcType=VARCHAR}, #{catalogId,jdbcType=VARCHAR},
#{remark,jdbcType=VARCHAR}, #{subject,jdbcType=VARCHAR}, #{analysis,jdbcType=VARCHAR},
#{type,jdbcType=VARCHAR}, #{difficulty,jdbcType=VARCHAR}, #{isClassic,jdbcType=VARCHAR},
#{state,jdbcType=VARCHAR}, #{reviewStatus,jdbcType=VARCHAR}, #{createTime,jdbcType=TIMESTAMP},
#{picture,jdbcType=VARCHAR} )
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.store.Question">
update
st_question
set
company_id = #{companyId,jdbcType=VARCHAR},
catalog_id = #{catalogId,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR},
subject = #{subject,jdbcType=VARCHAR},
analysis = #{analysis,jdbcType=VARCHAR},
difficulty = #{difficulty,jdbcType=VARCHAR},
is_classic = #{isClassic,jdbcType=VARCHAR},
picture = #{picture,jdbcType=VARCHAR},
state = #{state,jdbcType=VARCHAR}
where
id = #{id,jdbcType=VARCHAR}
</update>
</mapper>java
package top.hellocode.service.store.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.store.QuestionDao;
import top.hellocode.domain.store.Question;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.store.QuestionService;
import top.hellocode.service.store.QuestionService;
import top.hellocode.utils.TransactionUtil;
import java.util.Date;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月28日 11:05
*/
public class QuestionServiceImpl implements QuestionService {
@Override
public String save(Question question,boolean flag) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
question.setId(id);
// 添加审核状态和创建时间
question.setReviewStatus("0");
question.setCreateTime(new Date());
// 检测到前端上传文件了，设置当前存储的图片名称为id值(保证唯一)
if(flag){
question.setPicture(id);
}
// 调用Dao层操作
questionDao.save(question);
// 提交事务
TransactionUtil.commit(sqlSession);
return id;
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Question question) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 调用Dao层操作
questionDao.delete(question);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Question question, boolean flag) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 检测到前端上传文件了，设置当前存储的图片名称为id值(保证唯一)
if(flag){
question.setPicture(question.getId());
}
// 调用Dao层操作
questionDao.update(question);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Question findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 调用Dao层操作
return questionDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Question> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 调用Dao层操作
return questionDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Question> all = questionDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}package top.hellocode.web.controller.store;
import com.github.pagehelper.PageInfo;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.store.Catalog;
import top.hellocode.domain.store.Company;
import top.hellocode.domain.store.Question;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月28日 11:06
*/
// uri:/store/question?operation=list
@WebServlet("/store/question")
public class QuestionServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
try {
this.save(request,response);
} catch (Exception e) {
e.printStackTrace();
}
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
try {
this.edit(request,response);
} catch (Exception e) {
e.printStackTrace();
}
}else if("delete".equals(operation)){
this.delete(request,response);
}else if("toTestUpload".equals(operation)){
this.toTestUpload(request,response);
}else if("testUpload".equals(operation)){
try {
this.testUpload(request,response);
} catch (Exception e) {
e.printStackTrace();
}
}
}
private void toTestUpload(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/question/testFileUpload.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void testUpload(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 1. 确认该操作是否支持文件上传操作,enctype="multipart/form-data"
if(ServletFileUpload.isMultipartContent(request)){
// 2. 创建磁盘工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 3. Servlet文件上传核心对象
ServletFileUpload fileUpload = new ServletFileUpload(factory);
// 4. 从request中读取数据
List<FileItem> fileItems = fileUpload.parseRequest(request);
for(FileItem item : fileItems){
// 判断当前表单是否是文件表单
if(!item.isFormField()){
item.write(new File(this.getServletContext().getRealPath("upload"),item.getName()));
}
}
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// QuestionService questionService = new QuestionServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = questionService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/question/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Company> companyList = companyService.findAll();
List<Catalog> catalogList = catalogService.findAll();
request.setAttribute("companyList",companyList);
request.setAttribute("catalogList",catalogList);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/question/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 1. 确认该操作是否支持文件上传操作,enctype="multipart/form-data"
if(ServletFileUpload.isMultipartContent(request)){
// 2. 创建磁盘工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 3. Servlet文件上传核心对象
ServletFileUpload fileUpload = new ServletFileUpload(factory);
// 4. 从request中读取数据
List<FileItem> fileItems = fileUpload.parseRequest(request);
// 创建标记位，标记是否上传图片
boolean flag = false;
for(FileItem item : fileItems){
if(StringUtils.isNotBlank(item.getName())){ // 上传了文件
flag = true;
break;
}
}
// 处理普通数据
Question question = BeanUtil.fillBean(fileItems,Question.class);
// 调用业务层接口
String picture = questionService.save(question, flag);
// 处理文件数据
for(FileItem item : fileItems){
// 判断当前表单是否是文件表单
if(!item.isFormField()){
item.write(new File(this.getServletContext().getRealPath("upload"),picture));
}
}
}
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/question?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Company> companyList = companyService.findAll();
List<Catalog> catalogList = catalogService.findAll();
request.setAttribute("companyList",companyList);
request.setAttribute("catalogList",catalogList);
// 拿到要编辑的数据
String id = request.getParameter("id");
Question question = questionService.findById(id);
request.setAttribute("question",question);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/question/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 1. 确认该操作是否支持文件上传操作,enctype="multipart/form-data"
if(ServletFileUpload.isMultipartContent(request)){
// 2. 创建磁盘工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 3. Servlet文件上传核心对象
ServletFileUpload fileUpload = new ServletFileUpload(factory);
// 4. 从request中读取数据
List<FileItem> fileItems = fileUpload.parseRequest(request);
// 创建标记位，标记是否上传图片
boolean flag = false;
for(FileItem item : fileItems){
if(StringUtils.isNotBlank(item.getName())){ // 上传了文件
flag = true;
break;
}
}
// 处理普通数据
Question question = BeanUtil.fillBean(fileItems,Question.class);
// 调用业务层接口
questionService.update(question, flag);
// 处理文件数据
for(FileItem item : fileItems){
// 判断当前表单是否是文件表单
if(!item.isFormField()){
item.write(new File(this.getServletContext().getRealPath("upload"),question.getId()));
}
}
}
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/question?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Question question = BeanUtil.fillBean(request,Question.class);
// 调用业务层接口
// QuestionService questionService = new QuestionServiceImpl();
questionService.delete(question);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/question?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}文件上传
- 使用apache提供的commons-fileupload组件完成文件上传操作
页面操作步骤
页面提供文件上传的表单
<input type="file" class="form-control" placeholder="题干图片" name="picture">修改form表单的enctype属性，使其支持文件上传操作
<form id="editForm" action="....." method="post" enctype="multipart/form-data"> </form>
servlet操作步骤
- 确认请求操作是否支持文件上传
- 创建磁盘工厂对象，用于将页面上传的文件保存到磁盘中
- 获取Servlet文件上传核心对象
- 读取数据
- 对读取数据中的文件表单进行操作，并将内容写入到指定位置
private void testUpload(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 1. 确认该操作是否支持文件上传操作,enctype="multipart/form-data"
if(ServletFileUpload.isMultipartContent(request)){
// 2. 创建磁盘工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 3. Servlet文件上传核心对象
ServletFileUpload fileUpload = new ServletFileUpload(factory);
// 4. 从request中读取数据
List<FileItem> fileItems = fileUpload.parseRequest(request);
for(FileItem item : fileItems){
// 判断当前表单是否是文件表单
if(!item.isFormField()){
item.write(new File(this.getServletContext().getRealPath("upload"),item.getName()));
}
}
}
}题目模块添加功能加入文件上传
- 表单提交方式需要修改：
enctype=multipart/form-data - 当普通表单与文件表单混合提交时，普通表单的数据与文件表单的数据组成了一个整体进行上传，普通表单数据值的提取由request中获取转换为FileItem对象中获取
- 调式程序时，使用
if(true) return;形式暂时忽略后方代码的执行，快速调试
private void save(HttpServletRequest request, HttpServletResponse response) throws Exception {
// 1. 确认该操作是否支持文件上传操作,enctype="multipart/form-data"
if(ServletFileUpload.isMultipartContent(request)){
// 2. 创建磁盘工厂对象
DiskFileItemFactory factory = new DiskFileItemFactory();
// 3. Servlet文件上传核心对象
ServletFileUpload fileUpload = new ServletFileUpload(factory);
// 4. 从request中读取数据
List<FileItem> fileItems = fileUpload.parseRequest(request);
// 处理普通数据
Question question = BeanUtil.fillBean(fileItems,Question.class);
// 调用业务层接口
questionService.save(question);
// 处理文件数据
for(FileItem item : fileItems){
// 判断当前表单是否是文件表单
if(!item.isFormField()){
item.write(new File(this.getServletContext().getRealPath("upload"),item.getName()));
}
}
}
// 跳转页面
response.sendRedirect(request.getContextPath() + "/store/question?operation=list");
}解决上传文件重名问题
- 使用唯一编号重新定义文件名
- 使用原始文件名+唯一目录名保存文件
修改功能加入文件上传
- 修改图片通常是使用新上传的文件替换原始上传的图片，数据库中保存的文件名不进行更新
兼容图片上传可选操作与图片显示问题
- 在进行图片保存前，要确认是否存在图片上传功能，不区分添加还是修改操作
- 图片展示前要进行图片有效性判定，确认是否加载图片信息
- 企业开发通常采用按钮的形式控制是否加载图片
题目选项模块
字段
private String id;
private String questionId; // 所属题目id
private String content; // 选项内容
private String picture; // 选项图片
private String isRight; // 是否是正确答案注意
- 类似于题目与选项这种紧绑定的数据关系，通常依赖方没有独立的入口页面，依赖于被依赖的模块
- 多功能融合在一起制作时（例如添加和列表），先忽略掉其中大部分功能，从任意功能开始制作，降低制作过程多功能带来的干扰度
- 对于数据可穷举的模块，如果数据量较低，无需制作分页功能
添加操作
- 同用户模块开发（一对多）
注意
- 题目选项需求题目的id，此id不是通过列表的形式选择的，而是通过隐藏域传递的数据，需要保障加载该页面时，提前加载该数据
- 对于隐藏域的数据，开发阶段建议一直显式的暴露出来，等功能开发完毕后再隐藏，节约调试时间
删除功能
- 功能完成后跳转页面时，要保障目标页面的功能完整性，并加载所有相关的数据
修改功能
- 功能完成后，要保障目标页面的功能完整性，并加载所有相关的数据
- 如果一组表单承载多种工作，使用动态数据的方式设定当前表单的实际功能（operation）
- 可以利用数据是否携带id作为判定是否是添加或者修改操作的标志是saveOrUpdate操作的常用方式
题目模块删除功能问题分析与解决方案
当题目删除后，对应的题目选项并不能随之删除
解决方案一：触发器
- 注意使用触发器实现是将业务绑定到了数据库端，在进行系统设计时要确认方案
解决方案二：业务层删除操作中分别调用两个模块的删除功能
- 注意删除主使用按id删除，删除从使用按关联id删除
- 注意删除的顺序，先删从，再删主
解决方案三：存储过程
- 整套的数据层解决方案，没有单一功能使用的
解决方案四：依赖框架提供的级联删除功能
解决方案五：定时维护/垃圾数据清理
代码
页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
<script type="text/javascript">
function deleteById(id) {
var questionId = '${questionId}';
if(confirm("你确认要删除此条记录吗？")) {
window.location.href="${ctx}/store/questionItem?operation=delete&questionId=${questionId}&id="+id;
}
}
</script>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<!-- 内容头部 -->
<section class="content-header">
<h1>
题库管理
<small>题目的选项</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
<li><a href="all-order-manage-list.html">题库管理</a></li>
<li class="active">选项添加及列表</li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!--订单信息-->
<div class="panel panel-default">
<div class="panel-heading">新增选项</div>
<form id="editForm" action="${ctx}/store/questionItem?operation=saveOrUpdate" method="post">
<input type="text" name="questionId" value="${questionId}">
<input type="hidden" name="id" value="${questionItem.id}">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">选项内容</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="选项内容" name="content" value="${questionItem.content}">
</div>
<div class="col-md-2 title">选项图片</div>
<div class="col-md-4 data">
<input type="file" class="form-control" placeholder="请选择" name="picture" >
</div>
<%--<div class="col-md-2 title">是否正确答案</div>
<div class="col-md-4 data">
<select class="form-control" name="isRight">
<option value="">请选择</option>
<option value="1">正确答案</option>
<option value="0">错误选项</option>
</select>
</div>--%>
<div class="col-md-2 title">是否正确答案</div>
<div class="col-md-4 data">
<select class="form-control" name="isRight">
<option value="">请选择</option>
<option value="1" ${questionItem.isRight eq "1" ? "selected" : ""}>正确答案</option>
<option value="0" ${questionItem.isRight eq "0" ? "selected" : ""}>错误选项</option>
</select>
</div>
</div>
</form>
</div>
<!--订单信息/-->
<!--工具栏-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
<!--工具栏/-->
</section>
<!-- 正文区域 /-->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">选项列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<td class="tableHeader">选项内容</td>
<td class="tableHeader">是否正确答案</td>
<td class="tableHeader">操作</td>
</tr>
</thead>
<tbody class="tableBody" >
<c:forEach items="${page.list}" var="o" varStatus="status">
<tr class="odd" onmouseover="this.className='highlight'" onmouseout="this.className='odd'" >
<td>${o.content}</td>
<td>${o.isRight eq "1" ? "正确答案" : ""}</td>
<td>
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/store/questionItem?operation=toEdit&questionId=${questionId}&id=${o.id}"'>编辑</button>
<button type="button" class="btn bg-olive btn-xs" onclick="deleteById('${o.id}')">删除</button>
</td>
</tr>
</c:forEach>
</tbody>
</table>
<!--数据列表/-->
<!--工具栏/-->
</div>
<!-- 数据表格 /-->
</div>
</div>
</section>
</div>
<!-- 内容区域 /-->
</body>
</html>配置文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.store.QuestionItemDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.store.QuestionItem">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="question_id" jdbcType="VARCHAR" property="questionId"/>
<result column="content" jdbcType="VARCHAR" property="content"/>
<result column="is_right" jdbcType="VARCHAR" property="isRight"/>
<!--<result column="picture" jdbcType="VARCHAR" property="picture"/>-->
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, question_id, content, picture, is_right
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_question_item
where question_id = #{questionId,jdbcType=VARCHAR}
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from st_question_item
where id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from st_question_item where id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.store.QuestionItem">
insert into st_question_item (id, question_id, content,
picture, is_right)
values (#{id,jdbcType=VARCHAR}, #{questionId,jdbcType=VARCHAR}, #{content,jdbcType=VARCHAR},
#{picture,jdbcType=VARCHAR}, #{isRight,jdbcType=VARCHAR})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.store.QuestionItem">
update st_question_item
set
content = #{content,jdbcType=VARCHAR},
<if test="picture != null">
picture = #{picture,jdbcType=VARCHAR},
</if>
is_right = #{isRight,jdbcType=VARCHAR}
where id = #{id,jdbcType=VARCHAR}
</update>
<!--根据题目id查询所有选项-->
<select id="findByQuestionId" resultMap="BaseResultMap" parameterType="string">
select
<include refid="Base_Column_List"/>
from st_question_item
where question_id = #{questionId}
</select>
</mapper>java
package top.hellocode.web.controller.store;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.store.QuestionItem;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月28日 20:53
*/
// uri:/store/questionItem?operation=list
@WebServlet("/store/questionItem")
public class QuestionItemServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}else if("saveOrUpdate".equals(operation)){
this.saveOrUpdate(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String questionId = request.getParameter("questionId");
// 进入list页面时，添加对应的问题id，为添加操作使用
request.setAttribute("questionId",questionId);
PageInfo all = questionItemService.findAll(questionId, 1, 100);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/store/questionItem/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// 获取数据并封装对象
QuestionItem questionItem = BeanUtil.fillBean(request,QuestionItem.class,"yyyy-MM-dd");
System.out.println(questionItem);
// 调用业务层接口
questionItemService.save(questionItem);
// 跳转页面
list(request,response);
}
private void saveOrUpdate(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// 获取数据并封装对象
QuestionItem questionItem = BeanUtil.fillBean(request,QuestionItem.class,"yyyy-MM-dd");
// 如果页面传递了当前数据的id，为修改，否则为新增
if(StringUtils.isNotBlank(questionItem.getId())){
// 调用业务层接口
questionItemService.update(questionItem);
}else{
questionItemService.save(questionItem);
}
// 跳转页面
list(request,response);
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// 获取数据并封装对象
QuestionItem questionItem = BeanUtil.fillBean(request,QuestionItem.class,"yyyy-MM-dd");
// 调用业务层接口
// QuestionItemService questionItemService = new QuestionItemServiceImpl();
questionItemService.update(questionItem);
// 跳转页面
list(request,response);
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 调用业务层方法查询数据
// QuestionItemService questionItemService = new QuestionItemServiceImpl();
QuestionItem questionItem = questionItemService.findById(id);
request.setAttribute("questionItem",questionItem);
// 跳转页面
list(request,response);
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
// 获取数据并封装对象
QuestionItem questionItem = BeanUtil.fillBean(request,QuestionItem.class);
// 调用业务层接口
questionItemService.delete(questionItem);
// 跳转页面
list(request,response);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}package top.hellocode.service.store.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.store.QuestionItemDao;
import top.hellocode.domain.store.QuestionItem;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.store.QuestionItemService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月28日 20:50
*/
public class QuestionItemServiceImpl implements QuestionItemService {
@Override
public void save(QuestionItem questionItem) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionItemDao questionItemDao = MapperFactory.getMapper(sqlSession,QuestionItemDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
questionItem.setId(id);
// 调用Dao层操作
questionItemDao.save(questionItem);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(QuestionItem questionItem) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionItemDao questionItemDao = MapperFactory.getMapper(sqlSession,QuestionItemDao.class);
// 调用Dao层操作
questionItemDao.delete(questionItem);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(QuestionItem questionItem) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionItemDao questionItemDao = MapperFactory.getMapper(sqlSession,QuestionItemDao.class);
// 调用Dao层操作
questionItemDao.update(questionItem);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public QuestionItem findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionItemDao questionItemDao = MapperFactory.getMapper(sqlSession,QuestionItemDao.class);
// 调用Dao层操作
return questionItemDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll (String questionId , int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionItemDao questionItemDao = MapperFactory.getMapper(sqlSession,QuestionItemDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<QuestionItem> all = questionItemDao.findAll(questionId);
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}package top.hellocode.dao.store;
import top.hellocode.domain.store.QuestionItem;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月28日 20:47
*/
public interface QuestionItemDao {
int save(QuestionItem questionItem); // 保存
int delete(QuestionItem questionItem); // 删除
int update(QuestionItem questionItem); // 修改
QuestionItem findById(String id); // 通过id查询
/**
* @Description:根据题目id查询所有选项
* @param questionId: 题目id
* @return: java.util.List<top.hellocode.domain.store.QuestionItem>
*/
List<QuestionItem> findAll(String questionId); // 查询全部
}题目数据导出
报表
- Excel：可编辑、动态数据、格式多样化
- pdf：不可编辑、死数据、格式固定
- html css js：不可编辑、动态数据、格式多样化
Excel报表
- JXL：早期比较常用，支持xls文件操作
- POI：支持xls与xlsx文件操作，现在使用量大（office所有系列都能读写）
使用POI写Excel文件
@Test
public void testWriteByPoi() throws IOException {
// 1. 获取到对应的Excel文件——工作簿文件
XSSFWorkbook wb = new XSSFWorkbook();
// 2. 创建工作表
XSSFSheet sheet = wb.createSheet();
wb.createSheet("工作表名称"); // 指定名称
// 3. 创建工作表中的行对象
XSSFRow row = sheet.createRow(1); // 第二行（索引从0开始）
// 4. 创建工作表中行中的列对象
XSSFCell cell = row.createCell(1); // 第二列
// 5. 为单元格设置数据
cell.setCellValue("测试一下单元格");
// 创建一个文件对象,作为excel文件内容的输出文件
File f = new File("test.xlsx");
// 输出时通过流的形式对外输出，包装对应的目标文件
OutputStream os = new FileOutputStream(f);
// 将内存中的workbook数据写入到流中
wb.write(os);
// 释放资源
os.close();
wb.close();
}使用POI读Excel文件
@Test
public void testReadByPoi() throws IOException {
// 1. 获取要读取的文件工作簿对象
Workbook wb = new XSSFWorkbook("test.xlsx");
// 2. 获取工作表
Sheet sheet = wb.getSheetAt(0);
// 3. 获取行
Row row = sheet.getRow(1);
// 4. 获取单元格
Cell cell = row.getCell(1);
// 5. 根据数据类型获取数据
String data = cell.getStringCellValue();
System.out.println(data);
// 释放资源
wb.close();
}题目数据导出模板制作
内容分区
- 表头
- 标题
- 数据
内容制作
- 注意结构命名规范（row,cell）
- 数据（模拟数据）
- 样式（制作并抽取）
@Test
public void testProjectPoi() throws IOException {
// 1. 获取到对应的Excel文件——工作簿文件
XSSFWorkbook wb = new XSSFWorkbook();
// 2. 创建工作表
XSSFSheet s = wb.createSheet("题目数据文件");
// 设置通用配置
// s.setColumnWidth(4,100); // 列宽
// 设置水平居中
CellStyle cs_field = wb.createCellStyle();
cs_field.setAlignment(HorizontalAlignment.CENTER);
// 表格线
cs_field.setBorderTop(BorderStyle.THIN);
cs_field.setBorderBottom(BorderStyle.THIN);
cs_field.setBorderLeft(BorderStyle.THIN);
cs_field.setBorderRight(BorderStyle.THIN);
// 制作标题
s.addMergedRegion(new CellRangeAddress(1,1,1,12));
Row row_1 = s.createRow(1);
Cell cell_1_1 = row_1.createCell(1);
cell_1_1.setCellValue("在线试题导出信息");
// 创建一个样式
CellStyle cs_title = wb.createCellStyle();
// 设置水平和居中对齐
cs_title.setAlignment(HorizontalAlignment.CENTER);
cs_title.setVerticalAlignment(VerticalAlignment.CENTER);
// 为单元格添加样式
cell_1_1.setCellStyle(cs_title);
// 制作表头
String[] fields = {"题目ID","所属公司ID","所属目录ID","题目简介","题干描述",
"题干配图","题目分析","题目类型","题目难度","是否经典题","题目状态","审核状态"};
XSSFRow row_2 = s.createRow(2);
for (int i = 0; i < fields.length; i++) {
Cell cell_2_temp = row_2.createCell(1 + i);
cell_2_temp.setCellValue(fields[i]);
cell_2_temp.setCellStyle(cs_field);
}
// 制作数据区
List<Question> questionList = new ArrayList<>();
Question qq = new Question();
qq.setId("11");
qq.setPicture("12");
qq.setReviewStatus("13");
qq.setAnalysis("14");
qq.setCatalogId("15");
qq.setCompanyId("16");
qq.setDifficulty("17");
qq.setIsClassic("18");
qq.setRemark("19");
qq.setState("110");
qq.setSubject("111");
qq.setType("112");
questionList.add(qq);
Question qqq = new Question();
qqq.setId("11");
qqq.setPicture("12");
qqq.setReviewStatus("13");
qqq.setAnalysis("14");
qqq.setCatalogId("15");
qqq.setCompanyId("16");
qqq.setDifficulty("17");
qqq.setIsClassic("18");
qqq.setRemark("19");
qqq.setState("110");
qqq.setSubject("111");
qqq.setType("112");
questionList.add(qqq);
int row_index = 0;
for (Question q : questionList) {
int cell_index = 0;
XSSFRow row_temp = s.createRow(3 + row_index++);
Cell cell_data_1 = row_temp.createCell(1 + cell_index++);
cell_data_1.setCellValue(q.getId());
cell_data_1.setCellStyle(cs_field);
Cell cell_data_2 = row_temp.createCell(1 + cell_index++);
cell_data_2.setCellValue(q.getCompanyId());
cell_data_2.setCellStyle(cs_field);
Cell cell_data_3 = row_temp.createCell(1 + cell_index++);
cell_data_3.setCellValue(q.getCatalogId());
cell_data_3.setCellStyle(cs_field);
Cell cell_data_4 = row_temp.createCell(1 + cell_index++);
cell_data_4.setCellValue(q.getRemark());
cell_data_4.setCellStyle(cs_field);
Cell cell_data_5 = row_temp.createCell(1 + cell_index++);
cell_data_5.setCellValue(q.getSubject());
cell_data_5.setCellStyle(cs_field);
Cell cell_data_6 = row_temp.createCell(1 + cell_index++);
cell_data_6.setCellValue(q.getPicture());
cell_data_6.setCellStyle(cs_field);
Cell cell_data_7 = row_temp.createCell(1 + cell_index++);
cell_data_7.setCellValue(q.getAnalysis());
cell_data_7.setCellStyle(cs_field);
Cell cell_data_8 = row_temp.createCell(1 + cell_index++);
cell_data_8.setCellValue(q.getType());
cell_data_8.setCellStyle(cs_field);
Cell cell_data_9 = row_temp.createCell(1 + cell_index++);
cell_data_9.setCellValue(q.getDifficulty());
cell_data_9.setCellStyle(cs_field);
Cell cell_data_10 = row_temp.createCell(1 + cell_index++);
cell_data_10.setCellValue(q.getIsClassic());
cell_data_10.setCellStyle(cs_field);
Cell cell_data_11 = row_temp.createCell(1 + cell_index++);
cell_data_11.setCellValue(q.getState());
cell_data_11.setCellStyle(cs_field);
Cell cell_data_12 = row_temp.createCell(1 + cell_index++);
cell_data_12.setCellValue(q.getReviewStatus());
cell_data_12.setCellStyle(cs_field);
}
// 创建一个文件对象,作为excel文件内容的输出文件
File f = new File("test.xlsx");
// 输出时通过流的形式对外输出，包装对应的目标文件
OutputStream os = new FileOutputStream(f);
// 将内存中的workbook数据写入到流中
wb.write(os);
// 释放资源
os.close();
wb.close();
}导出题目报表
- 根据报表内容组织要展示的数据
- 使用ByteOutputStream作为数据载体在业务层与表现层间进行数据交互
- 通过ServletOutputStream读取ByteOutputStream中保存的数据获取报表内容数据
- 定义输出的数据格式，通过Tomcat安装目录中的web.xml查询
请求头信息处理
- 文件名设置
- 中文字符设定
servlet
private void downloadReport(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 返回的数据类型为文件xlsx类型
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet;charset=utf-8");
// 修改文件名
response.addHeader("Content-Disposition","attachment;fileName=questionReport.xlsx");
// 生成报告的文件，传递到前端页面
ByteArrayOutputStream os = questionService.getReport();
// 获取产生响应的流对象
ServletOutputStream sos = response.getOutputStream();
// 将数据从原始的字节流对象中提取出来，写入到servlet对应的输出流中
os.writeTo(sos);
// 将输出流刷新
sos.flush();
os.close();
}service
@Override
public ByteArrayOutputStream getReport() throws IOException {
SqlSession sqlSession = null;
List<Question> questionList = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
QuestionDao questionDao = MapperFactory.getMapper(sqlSession,QuestionDao.class);
// 调用Dao层操作
questionList = questionDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
// 1. 获取到对应的Excel文件——工作簿文件
XSSFWorkbook wb = new XSSFWorkbook();
// 2. 创建工作表
XSSFSheet s = wb.createSheet("题目数据文件");
// 设置通用配置
// s.setColumnWidth(4,100); // 列宽
// 设置水平居中
CellStyle cs_field = wb.createCellStyle();
cs_field.setAlignment(HorizontalAlignment.CENTER);
// 表格线
cs_field.setBorderTop(BorderStyle.THIN);
cs_field.setBorderBottom(BorderStyle.THIN);
cs_field.setBorderLeft(BorderStyle.THIN);
cs_field.setBorderRight(BorderStyle.THIN);
// 制作标题
s.addMergedRegion(new CellRangeAddress(1,1,1,12));
Row row_1 = s.createRow(1);
Cell cell_1_1 = row_1.createCell(1);
cell_1_1.setCellValue("在线试题导出信息");
// 创建一个样式
CellStyle cs_title = wb.createCellStyle();
// 设置水平和居中对齐
cs_title.setAlignment(HorizontalAlignment.CENTER);
cs_title.setVerticalAlignment(VerticalAlignment.CENTER);
// 为单元格添加样式
cell_1_1.setCellStyle(cs_title);
// 制作表头
String[] fields = {"题目ID","所属公司ID","所属目录ID","题目简介","题干描述",
"题干配图","题目分析","题目类型","题目难度","是否经典题","题目状态","审核状态"};
XSSFRow row_2 = s.createRow(2);
for (int i = 0; i < fields.length; i++) {
Cell cell_2_temp = row_2.createCell(1 + i);
cell_2_temp.setCellValue(fields[i]);
cell_2_temp.setCellStyle(cs_field);
}
// 制作数据区
int row_index = 0;
for (Question q : questionList) {
int cell_index = 0;
XSSFRow row_temp = s.createRow(3 + row_index++);
Cell cell_data_1 = row_temp.createCell(1 + cell_index++);
cell_data_1.setCellValue(q.getId());
cell_data_1.setCellStyle(cs_field);
Cell cell_data_2 = row_temp.createCell(1 + cell_index++);
cell_data_2.setCellValue(q.getCompanyId());
cell_data_2.setCellStyle(cs_field);
Cell cell_data_3 = row_temp.createCell(1 + cell_index++);
cell_data_3.setCellValue(q.getCatalogId());
cell_data_3.setCellStyle(cs_field);
Cell cell_data_4 = row_temp.createCell(1 + cell_index++);
cell_data_4.setCellValue(q.getRemark());
cell_data_4.setCellStyle(cs_field);
Cell cell_data_5 = row_temp.createCell(1 + cell_index++);
cell_data_5.setCellValue(q.getSubject());
cell_data_5.setCellStyle(cs_field);
Cell cell_data_6 = row_temp.createCell(1 + cell_index++);
cell_data_6.setCellValue(q.getPicture());
cell_data_6.setCellStyle(cs_field);
Cell cell_data_7 = row_temp.createCell(1 + cell_index++);
cell_data_7.setCellValue(q.getAnalysis());
cell_data_7.setCellStyle(cs_field);
Cell cell_data_8 = row_temp.createCell(1 + cell_index++);
cell_data_8.setCellValue(q.getType());
cell_data_8.setCellStyle(cs_field);
Cell cell_data_9 = row_temp.createCell(1 + cell_index++);
cell_data_9.setCellValue(q.getDifficulty());
cell_data_9.setCellStyle(cs_field);
Cell cell_data_10 = row_temp.createCell(1 + cell_index++);
cell_data_10.setCellValue(q.getIsClassic());
cell_data_10.setCellStyle(cs_field);
Cell cell_data_11 = row_temp.createCell(1 + cell_index++);
cell_data_11.setCellValue(q.getState());
cell_data_11.setCellStyle(cs_field);
Cell cell_data_12 = row_temp.createCell(1 + cell_index++);
cell_data_12.setCellValue(q.getReviewStatus());
cell_data_12.setCellStyle(cs_field);
}
// 将内存中的workbook数据写入到流中
ByteArrayOutputStream os = new ByteArrayOutputStream();
wb.write(os);
// 释放资源
wb.close();
return os;
}权限系统
- 权限系统是一种设定用户与可操作模块之间关系的系统
- 通过设定用户与可操作的模块之间的关系，控制用户在可指定范围内进行业务执行
- 基于用户的权限控制（UBAC：User-Based Access Control）
- 基于角色的权限控制（RBAC：Role-Based Access Control）
关于模块的设定
- 模块用于定义系统中可进行的操作
- 操作用户模块（菜单）
操作部门模块（菜单）
- 添加部门（按钮、链接）
- 删除部门（按钮、链接）
角色与模块快速开发
字段
public class Role{
private String id;
private String name; // 名称
private String remark; // 描述
private Date createTime; // 创建时间
}public class Module{
private String id;
private String parentId; // 所属模块id
private String name; // 名称
private Long ctype; // 类型（1-系统菜单，2-二级菜单，3-...，4-....）
private Long state; // 状态(1-可用，2-不可用)
private String curl; // 请求url（用于权限校验）
private String remark; // 描述
private Module module; // 自连接关系
}角色模块参照单表增删改查制作（同企业模块）
模块参照自连接增删改查制作（同部门模块）
树形控件结构分析
- 明确控件的本质功能
- 尝试性删除调试效果
- 删除页面上所有非核心内容
加载授权操作动态数据
- 使用静态数据确认树形结构功能是否完备
- 后台按照页面数据结构拼写SQL查询数据
- 根据页面数据结构组织数据格式（json）
绑定角色与模块间数据关系
页面数据格式转换
- 多数据格式转换成单数据格式，后台使用字符串接收数据
- 多数据提交，后台使用数组接收数据
业务功能组合
- 通过在业务层中调用多个数据层操作，组合业务功能
页面
Role
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>角色管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑角色</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/system/role?operation=save" method="post">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">角色名</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="角色名" name="name" value="${role.name}">
</div>
<div class="col-md-2 title">备注</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="备注" name="remark" value="${role.remark}">
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp" %>
<!DOCTYPE html>
<html>
<head>
<base href="${ctx}/">
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
<link rel="stylesheet" href="${ctx}/plugins/ztree/css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="${ctx}/plugins/ztree/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="${ctx}/plugins/ztree/js/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="${ctx}/plugins/ztree/js/jquery.ztree.excheck-3.5.js"></script>
<SCRIPT type="text/javascript">
// 定义页面对应的树形组件
var zTreeObj;
var setting = {check: {enable: true},data: {simpleData: {enable: true}}};
var zNodes =${roleModuleJson}
/*
[
{id:1,pId:0,name:'平台系统管理',checked:false},
{id:101,pId:1,name:'企业管理',checked:false},
{id:102,pId:1,name:'部门管理',checked:false},
{id:103,pId:1,name:'用户管理',checked:false},
{id:104,pId:1,name:'角色管理',checked:false},
{id:105,pId:1,name:'模块管理',checked:false},
{id:106,pId:1,name:'系统日志管理',checked:false},
{id:2,pId:0,name:'题库管理',checked:false},
{id:201,pId:2,name:'题目学科管理',checked:false},
{id:202,pId:2,name:'题目类型管理',checked:false},
{id:203,pId:2,name:'题目管理',checked:false},
{id:204,pId:2,name:'题目审核日志',checked:false},
{id:3,pId:0,name:'会员管理',checked:false},
{id:301,pId:3,name:'会员账号管理',checked:false},
{id:302,pId:3,name:'会员答题管理',checked:false}
]
*/
$(document).ready(function(){
/*
$.get("${ctx}/system/role?operation=getModuleByRoleId&id=${role.id}",function(data) {
var json = eval('(' + data + ')');
initZtree(json);
});
*/
zTreeObj = $.fn.zTree.init($("#treeDemo"), setting, zNodes)
var zTree = $.fn.zTree.getZTreeObj("treeDemo")
zTree.setting.check.chkboxType = { "Y" : "ps", "N" : "ps" }
zTreeObj.expandAll(true);//true：展开所有
});
//实现权限分配
function submitCheckedNodes() {
//1.获取所有的勾选权限节点
var nodes = zTreeObj.getCheckedNodes(true);//true:被勾选，false：未被勾选
//2.循环nodes，获取每个节点的id，并将数据加入数组
//1,2,3,4,5 1+","+2+","+3.....
//数据的临时存储数组，为了方便内容连接成为一个由逗号分隔的字符串
var moduleArrays = [];
for(var i=0;i<nodes.length;i++) {
moduleArrays.push(nodes[i].id);
}
//3.将数组中的数据使用,连接后，赋值给表单，传入后台
$("#moduleIds").val(moduleArrays.join(',')); //1,2,3,4,5
$("#icform").submit();
}
</SCRIPT>
</head>
<body style="overflow: visible;">
<div id="frameContent" class="content-wrapper" style="margin-left:0px;height: 1200px" >
<section class="content-header">
<h1>
菜单管理
<small>菜单列表</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">角色 [${role.name}] 权限列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!-- 树菜单 /-->
<form id="icform" method="post" action="${ctx}/system/role?operation=updateRoleModule">
<input type="hidden" name="roleId" value="${role.id}"/>
<input type="hidden" id="moduleIds" name="moduleIds" value=""/>
<ul id="treeDemo" class="ztree"></ul>
</form>
<!--工具栏-->
</form>
<div class="box-tools text-left">
<button type="button" class="btn bg-maroon" onclick="submitCheckedNodes()">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/system/role?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>角色管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">角色列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/system/role?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">名称</th>
<th class="sorting">说明</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="o" varStatus="status">
<tr class="odd" onmouseover="this.className='highlight'" onmouseout="this.className='odd'" >
<td><input type="checkbox" name="id" value="${o.id}"/></td>
<td><a href="${ctx}/system/role?operation=toEdit&id=${o.id}">${o.name}</a></td>
<td>${o.remark}</td>
<th class="text-center">
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/system/role?operation=toEdit&id=${o.id}"'>编辑</button>
<button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/system/role?operation=author&id=${o.id}"'>授权</button>
</th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/system/role?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>角色管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="box-body">
<div class="nav-tabs-custom">
<ul class="nav nav-tabs">
<li class="active">
<a href="#tab-form" data-toggle="tab">编辑角色</a>
</li>
</ul>
<div class="tab-content">
<form id="editForm" action="${ctx}/system/role?operation=edit" method="post">
<input type="hidden" name="id" value="${role.id}">
<div class="tab-pane active" id="tab-form">
<div class="row data-type">
<div class="col-md-2 title">角色名</div>
<div class="col-md-10 data">
<input type="text" class="form-control" placeholder="角色名" name="name" value="${role.name}">
</div>
<div class="col-md-2 title">备注</div>
<div class="col-md-10 data line-height36">
<input type="text" class="form-control" placeholder="备注" name="remark" value="${role.remark}">
</div>
<div class="col-md-2 title"></div>
<div class="col-md-10 data text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</div>
</div>
</form>
</div>
</div>
</div>
</section>
</div>
</body>
</html>module
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>模块管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="panel panel-default">
<div class="panel-heading">模块信息</div>
<form id="editForm" action="${ctx}/system/module?operation=save" method="post">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">模块名</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="模块名" name="name" value="${module.name}">
</div>
<div class="col-md-2 title">上级模块</div>
<div class="col-md-4 data">
<select class="form-control" onchange="document.getElementById('parentName').value=this.options[this.selectedIndex].text" name="parentId">
<option value="">请选择</option>
<c:forEach items="${moduleList}" var="item">
<option ${module.parentId == item.id ?'selected':''} value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">类型</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${module.ctype==0?'checked':''} name="ctype" value="0">主菜单</label></div>
<div class="radio"><label><input type="radio" ${module.ctype==1?'checked':''} name="ctype" value="1">二级菜单</label></div>
<div class="radio"><label><input type="radio" ${module.ctype==2?'checked':''} name="ctype" value="2">按钮</label></div>
</div>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${module.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${module.state==1?'checked':''} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title">链接</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="链接" name="curl" value="${module.curl}">
</div>
<div class="col-md-2 title ">备注</div>
<div class="col-md-4 data ">
<input type="text" class="form-control" placeholder="备注" name="curl" value="${remark.curl}">
</div>
</div>
</form>
</div>
<!--订单信息/-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
</head>
<script>
function deleteById() {
var id = getCheckId()
if(id) {
if(confirm("你确认要删除此条记录吗？")) {
location.href="${ctx}/system/module?operation=delete&id="+id;
}
}else{
alert("请勾选待处理的记录，且每次只能勾选一个")
}
}
</script>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>模块管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<!-- 内容头部 /-->
<!-- 正文区域 -->
<section class="content">
<!-- .box-body -->
<div class="box box-primary">
<div class="box-header with-border">
<h3 class="box-title">模块列表</h3>
</div>
<div class="box-body">
<!-- 数据表格 -->
<div class="table-box">
<!--工具栏-->
<div class="pull-left">
<div class="form-group form-inline">
<div class="btn-group">
<button type="button" class="btn btn-default" title="新建" onclick='location.href="${ctx}/system/module?operation=toAdd"'><i class="fa fa-file-o"></i> 新建</button>
<button type="button" class="btn btn-default" title="删除" onclick='deleteById()'><i class="fa fa-trash-o"></i> 删除</button>
<button type="button" class="btn btn-default" title="刷新" onclick="window.location.reload();"><i class="fa fa-refresh"></i> 刷新</button>
</div>
</div>
</div>
<div class="box-tools pull-right">
<div class="has-feedback">
<input type="text" class="form-control input-sm" placeholder="搜索">
<span class="glyphicon glyphicon-search form-control-feedback"></span>
</div>
</div>
<!--工具栏/-->
<!--数据列表-->
<table id="dataList" class="table table-bordered table-striped table-hover dataTable">
<thead>
<tr>
<th class="" style="padding-right:0px;">
<input type="checkbox" name="selid" onclick="checkAll('id',this)">
</th>
<th class="sorting">模块名</th>
<th class="sorting">类型</th>
<th class="sorting">上级模块</th>
<th class="sorting">链接</th>
<th class="sorting">状态</th>
<th class="text-center">操作</th>
</tr>
</thead>
<tbody>
<c:forEach items="${page.list}" var="o" varStatus="st">
<tr>
<td><input type="checkbox" name="id" value="${o.id }"/></td>
<td><a href="#">${o.name}</a></td>
<td>${o.ctype==0?'主菜单':o.ctype==1?'二级菜单':'按钮'}</td>
<td>${o.module.name}</td>
<td>${o.curl}</td>
<td>${o.state==0?'停用':'启用'}</td>
<th class="text-center"><button type="button" class="btn bg-olive btn-xs" onclick='location.href="${ctx}/system/module?operation=toEdit&id=${o.id}"'>编辑</button></th>
</tr>
</c:forEach>
</tbody>
</table>
</div>
</div>
<div class="box-footer">
<jsp:include page="../../common/page.jsp">
<jsp:param value="${ctx}/system/module?operation=list" name="pageUrl"/>
</jsp:include>
</div>
</div>
</section>
</div>
</body>
</html><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="../../base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<section class="content-header">
<h1>
系统管理
<small>模块管理</small>
</h1>
<ol class="breadcrumb">
<li><a href="all-admin-index.html"><i class="fa fa-dashboard"></i> 首页</a></li>
</ol>
</section>
<section class="content">
<div class="panel panel-default">
<div class="panel-heading">模块信息</div>
<form id="editForm" action="${ctx}/system/module?operation=edit" method="post">
<input type="hidden" name="id" value="${module.id}">
<div class="row data-type" style="margin: 0px">
<div class="col-md-2 title">模块名</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="模块名" name="name" value="${module.name}">
</div>
<div class="col-md-2 title">上级模块</div>
<div class="col-md-4 data">
<select class="form-control" onchange="document.getElementById('parentName').value=this.options[this.selectedIndex].text" name="parentId">
<option value="">请选择</option>
<c:forEach items="${moduleList}" var="item">
<option ${module.parentId == item.id ?'selected':''} value="${item.id}">${item.name}</option>
</c:forEach>
</select>
</div>
<div class="col-md-2 title">类型</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${module.ctype==0?'checked':''} name="ctype" value="0">主菜单</label></div>
<div class="radio"><label><input type="radio" ${module.ctype==1?'checked':''} name="ctype" value="1">二级菜单</label></div>
<div class="radio"><label><input type="radio" ${module.ctype==2?'checked':''} name="ctype" value="2">按钮</label></div>
</div>
</div>
<div class="col-md-2 title">状态</div>
<div class="col-md-4 data">
<div class="form-group form-inline">
<div class="radio"><label><input type="radio" ${module.state==0?'checked':''} name="state" value="0">停用</label></div>
<div class="radio"><label><input type="radio" ${module.state==1?'checked':''} name="state" value="1">启用</label></div>
</div>
</div>
<div class="col-md-2 title">链接</div>
<div class="col-md-4 data">
<input type="text" class="form-control" placeholder="链接" name="curl" value="${module.curl}">
</div>
<div class="col-md-2 title ">备注</div>
<div class="col-md-4 data ">
<input type="text" class="form-control" placeholder="备注" name="curl" value="${remark.curl}">
</div>
</div>
</form>
</div>
<!--订单信息/-->
<div class="box-tools text-center">
<button type="button" onclick='document.getElementById("editForm").submit()' class="btn bg-maroon">保存</button>
<button type="button" class="btn bg-default" onclick="history.back(-1);">返回</button>
</div>
</section>
</div>
</body>
</html>配置文件
Role
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.RoleDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.Role">
<id column="role_id" jdbcType="VARCHAR" property="id"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime"/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
role_id, name, remark, create_time
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_role
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_role
where role_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_role
where role_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.Role">
insert into ss_role (role_id, name, remark, create_time)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR},
#{createTime,jdbcType=TIMESTAMP})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.Role">
update ss_role
set name = #{name,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR},
create_time = #{createTime,jdbcType=TIMESTAMP}
where role_id = #{id,jdbcType=VARCHAR}
</update>
<!--配置根据roleId删除关系表数据-->
<delete id="deleteRoleModule" parameterType="java.lang.String">
delete from ss_role_module
where role_id = #{roleId,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="saveRoleModule" parameterType="map">
insert into ss_role_module (role_id, module_id)
values (#{roleId,jdbcType=VARCHAR}, #{moduleId,jdbcType=VARCHAR})
</insert>
<!--配置根据ID查询-->
<select id="findAllRoleByUserId" parameterType="java.lang.String" resultMap="BaseResultMap">
SELECT
role_id,
NAME,
CASE
WHEN role_id IN (SELECT role_id FROM ss_role_user WHERE user_id = #{'userId'})
THEN 'checked'
ELSE ''
END
AS remark
FROM
ss_role
</select>
</mapper>Module
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.ModuleDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.Module">
<id column="module_id" jdbcType="VARCHAR" property="id"/>
<result column="parent_id" jdbcType="VARCHAR" property="parentId"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="ctype" jdbcType="DECIMAL" property="ctype"/>
<result column="state" jdbcType="DECIMAL" property="state"/>
<result column="curl" jdbcType="VARCHAR" property="curl"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<association
property="module"
javaType="top.hellocode.domain.system.Module"
column="parent_id"
select="top.hellocode.dao.system.ModuleDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
module_id, parent_id, name, ctype, state, curl, remark
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_module
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_module
where module_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_module where module_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.Module">
insert into ss_module (module_id, parent_id, name, ctype, state, curl, remark)
values (#{id,jdbcType=VARCHAR}, #{parentId,jdbcType=VARCHAR},
#{name,jdbcType=VARCHAR}, #{ctype,jdbcType=DECIMAL}, #{state,jdbcType=DECIMAL},
#{curl,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.Module">
update ss_module
set parent_id = #{parentId,jdbcType=VARCHAR},
name = #{name,jdbcType=VARCHAR},
ctype = #{ctype,jdbcType=DECIMAL},
state = #{state,jdbcType=DECIMAL},
curl = #{curl,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR}
where module_id = #{id,jdbcType=VARCHAR}
</update>
<select id="findAuthorDataByRoleId" parameterType="string" resultType="java.util.Map">
select
module_id as id,
parent_id as pId,
name as name,
case
when module_id in (select module_id from ss_role_module where role_id = #{roleId})
then 'true'
else 'false'
end
as checked
from
ss_module
</select>
</mapper>Java
Role
package top.hellocode.dao.system;
import org.apache.ibatis.annotations.Param;
import top.hellocode.domain.system.Role;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:33
*/
public interface RoleDao {
int save(Role role); // 保存
int delete(Role role); // 删除
int update(Role role); // 修改
Role findById(String id); // 通过id查询
List<Role> findAll(); // 查询全部
void deleteRoleModule(String roleId);
void saveRoleModule(@Param("roleId") String roleId,@Param("moduleId") String moduleId);
}package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.RoleDao;
import top.hellocode.domain.system.Role;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.RoleService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:36
*/
public class RoleServiceImpl implements RoleService {
@Override
public void save(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession, RoleDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
role.setId(id);
// 调用Dao层操作
roleDao.save(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
roleDao.delete(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
roleDao.update(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Role findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
return roleDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Role> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
return roleDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Role> all = roleDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void updateRoleModule(String roleId, String moduleIds) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
// 修改role_module
// 取消所有的现有关系，建立新的关系（多个）
roleDao.deleteRoleModule(roleId);
String[] moduleArray = moduleIds.split(",");
for(String moduleId : moduleArray){
roleDao.saveRoleModule(roleId,moduleId);
}
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}package top.hellocode.web.controller.system;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Role;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
import java.util.Map;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:37
*/
// uri:/system/role?operation=list
@WebServlet("/system/role")
public class RoleServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}else if("author".equals(operation)){
this.author(request,response);
}else if("updateRoleModule".equals(operation)){
this.updateRoleModule(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// RoleService roleService = new RoleServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = roleService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Role> all = roleService.findAll();
request.setAttribute("roleList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class,"yyyy-MM-dd");
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.save(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Role> all = roleService.findAll();
request.setAttribute("roleList",all);
// 调用业务层方法查询数据
Role role = roleService.findById(id);
request.setAttribute("role",role);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class,"yyyy-MM-dd");
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.update(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class);
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.delete(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void author(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取要授权的角色id
String roleId = request.getParameter("id");
// 使用id查询对应的数据（角色对应的模块信息）
Role role = roleService.findById(roleId);
request.setAttribute("role",role);
// 根据当前角色id获取所有的模块数据，并加载关系数据
List<Map> map = moduleService.findAuthorDataByRoleId(roleId);
// map转json
ObjectMapper om = new ObjectMapper();
String json = om.writeValueAsString(map);
request.setAttribute("roleModuleJson",json);
// TODO 数据未查询
// 跳转到树页面中
request.getRequestDispatcher("/WEB-INF/pages/system/role/author.jsp").forward(request,response);
}
private void updateRoleModule(HttpServletRequest request, HttpServletResponse response) throws IOException {
String roleId = request.getParameter("roleId");
String moduleIds = request.getParameter("moduleIds");
roleService.updateRoleModule(roleId, moduleIds);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}Module
package top.hellocode.dao.system;
import top.hellocode.domain.system.Module;
import java.util.List;
import java.util.Map;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:40
*/
public interface ModuleDao {
int save(Module module); // 保存
int delete(Module module); // 删除
int update(Module module); // 修改
Module findById(String id); // 通过id查询
List<Module> findAll(); // 查询全部
List<Map> findAuthorDataByRoleId(String roleId);
}package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.ModuleDao;
import top.hellocode.domain.system.Module;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.ModuleService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.Map;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:42
*/
public class ModuleServiceImpl implements ModuleService {
@Override
public void save(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession, ModuleDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
module.setId(id);
// 调用Dao层操作
moduleDao.save(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
moduleDao.delete(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
moduleDao.update(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Module findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Module> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Module> all = moduleDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Map> findAuthorDataByRoleId(String roleId) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findAuthorDataByRoleId(roleId);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}package top.hellocode.web.controller.system;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Module;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:48
*/
// uri:/system/module?operation=list
@WebServlet("/system/module")
public class ModuleServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// ModuleService moduleService = new ModuleServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = moduleService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Module> all = moduleService.findAll();
request.setAttribute("moduleList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class,"yyyy-MM-dd");
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.save(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Module> all = moduleService.findAll();
request.setAttribute("moduleList",all);
// 调用业务层方法查询数据
Module module = moduleService.findById(id);
request.setAttribute("module",module);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class,"yyyy-MM-dd");
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.update(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class);
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.delete(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}权限过滤及绑定
绑定用户与角色间数据关系
- 数据回显：获取用户对应的角色数据（同获取角色对应的模块数据）
- 数据保存：页面收集用户id与所有的角色id，在业务层中调用多个数据层操作，组合业务功能
登录功能快速开发
- 业务层方法名体现业务操作名称，数据层方法名体现数据操作名称
- 密码需要进行加密
- 页面保存位置发生变更，将之前webapp目录下的页面移动至WEB-INF目录下
动态菜单控制
- 前提：必须基于登录功能
步骤
- 根据用户id查询用户可操作的菜单，通过关联关系获取模块表中对应的数据
- 页面上根据查询到的模块数据按照层级关系分层加载
业务权限过滤
获取当前请求操作
- 字符串拼接
- 忽略operation之外的所有参数（operation参数决定了业务种类）
获取登陆人可执行的操作
- 改造登录功能，记录登陆人可执行的所有操作（字符串格式）
- 放行所有无需权限校验的操作，例如静态资源获取、登录功能等
- 所有操作都必须配置到数据库中，数据库中未配置的操作将无法通过权限校验
比对当前操作是否在登陆人可执行的操作范围内
- 放行无权限提醒页面
过滤
package top.hellocode.web.filters;
import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.annotation.WebInitParam;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.io.IOException;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 9:47
*/
@WebFilter(value = "/*")
public class AuthorFilter implements Filter {
private FilterConfig filterConfig;
/**
* 初始化方法，获取过滤器的配置对象
* @param filterConfig
* @throws ServletException
*/
@Override
public void init(FilterConfig filterConfig) throws ServletException {
this.filterConfig = filterConfig;
}
@Override
public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException, ServletException {
//1.定义和协议相关的请求和响应对象
HttpServletRequest request ;
HttpServletResponse response;
HttpSession session;
try{
//2.把参数转换成协议相关的对象
request = (HttpServletRequest)req;
response = (HttpServletResponse)resp;
session = request.getSession();
// 获取本次操作
String url = request.getRequestURI();
// 提前放行一些文件
// .css .js .png .jpg .index
if(url.endsWith(".css")
|| url.endsWith(".js")
|| url.endsWith(".png")
|| url.endsWith(".jpg")
|| url.endsWith("index.jsp")
|| url.endsWith("login.jsp")
|| url.endsWith("unauthorized.jsp")
){
chain.doFilter(request,response);
return;
}
String queryString = request.getQueryString();
if(queryString.endsWith("operation=login")
|| queryString.endsWith("operation=home")
|| queryString.endsWith("operation=logout")
){
chain.doFilter(request,response);
return;
}
// 当前获取到的uri: /system.dept
url = url.substring(1); // 去掉开头/
// 当前获取到的查询参数：operation=list operation=toEdit&id=100
int index = queryString.indexOf('&');
if (index != -1){
queryString = queryString.substring(0, index);
}
url = url + "?" + queryString;
// 获取当前登陆人允许的操作
String authorStr = (String) session.getAttribute("authorStr");
// 比对本次操作是否在当前登陆人允许的操作范围内
// 如果允许就放行，否则跳转到非法访问页
if(authorStr.contains(url)){
//6.放行
chain.doFilter(request,response);
return;
}else {
// 跳转错误页面
response.sendRedirect(request.getContextPath() + "/unauthorized.jsp");
}
}catch (Exception e){
e.printStackTrace();
}
}
@Override
public void destroy() {
//可以做一些清理操作
}
}user
package top.hellocode.web.controller.system;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Dept;
import top.hellocode.domain.system.Module;
import top.hellocode.domain.system.Role;
import top.hellocode.domain.system.User;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月20日 22:56
*/
// uri:/system/user?operation=list
@WebServlet("/system/user")
public class UserServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if ("list".equals(operation)) { // 进入列表页
this.list(request, response);
} else if ("toAdd".equals(operation)) {
this.toAdd(request, response);
} else if ("save".equals(operation)) {
this.save(request, response);
} else if ("toEdit".equals(operation)) {
this.toEdit(request, response);
} else if ("edit".equals(operation)) {
this.edit(request, response);
} else if ("delete".equals(operation)) {
this.delete(request, response);
} else if ("userRoleList".equals(operation)) {
this.userRoleList(request, response);
} else if ("updateRole".equals(operation)) {
this.updateRole(request, response);
} else if ("login".equals(operation)) {
this.login(request, response);
} else if ("logout".equals(operation)) {
this.logout(request, response);
}else if ("home".equals(operation)) {
this.home(request, response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// UserService userService = new UserServiceImpl();
int page = 1;
int size = 5;
if (StringUtils.isNotBlank(request.getParameter("page"))) {
page = Integer.parseInt(request.getParameter("page"));
}
if (StringUtils.isNotBlank(request.getParameter("size"))) {
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = userService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page", all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/list.jsp").forward(request, response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList", all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/add.jsp").forward(request, response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request, User.class, "yyyy-MM-dd");
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.save(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Dept> all = deptService.findAll();
request.setAttribute("deptList", all);
// 调用业务层方法查询数据
User user = userService.findById(id);
request.setAttribute("user", user);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/update.jsp").forward(request, response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request, User.class, "yyyy-MM-dd");
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.update(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
User user = BeanUtil.fillBean(request, User.class);
// 调用业务层接口
// UserService userService = new UserServiceImpl();
userService.delete(user);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void userRoleList(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String userId = request.getParameter("id");
// 调用业务层方法查询数据
User user = userService.findById(userId);
request.setAttribute("user", user);
// 获取角色列表
List<Role> all = roleService.findAllRoleByUserId(userId);
request.setAttribute("roleList", all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/user/role.jsp").forward(request, response); //将页面放到web-info下（安全）
}
private void updateRole(HttpServletRequest request, HttpServletResponse response) throws IOException {
String userId = request.getParameter("userId");
String[] roleIds = request.getParameterValues("roleIds");
userService.updateRole(userId, roleIds);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/user?operation=list");
}
private void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String email = request.getParameter("email");
String pwd = request.getParameter("password");
User user = userService.login(email, pwd);
if (user != null) {
request.getSession().setAttribute("loginUser", user);
// 如果登录成功，加载该用户对应的角色对应的所有模块
List<Module> moduleList = userService.findMoudleById(user.getId());
request.setAttribute("moduleList",moduleList);
// 当前登录用户对应的可操作模块的所有url拼接成一个大的字符串
StringBuilder sb = new StringBuilder();
for(Module m :moduleList){
sb.append(m.getCurl());
sb.append(',');
}
request.getSession().setAttribute("authorStr",sb.toString());
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/home/main.jsp").forward(request, response); //将页面放到web-info下（安全）
} else {
// 跳转页面
response.sendRedirect(request.getContextPath() + "/login.jsp");
}
}
private void logout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
request.getSession().removeAttribute("loginUser");
// 跳转页面
response.sendRedirect(request.getContextPath() + "/login.jsp");
}
private void home(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/home/home.jsp").forward(request, response); //将页面放到web-info下（安全）
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request, response);
}
}package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.ModuleDao;
import top.hellocode.dao.system.UserDao;
import top.hellocode.domain.system.Module;
import top.hellocode.domain.system.User;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.UserService;
import top.hellocode.utils.MD5Util;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月20日 22:54
*/
public class UserServiceImpl implements UserService {
@Override
public void save(User user) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
user.setId(id);
// 密码加密
user.setPassword(MD5Util.md5(user.getPassword()));
// 调用Dao层操作
userDao.save(user);
// 提交事务
TransactionUtil.commit(sqlSession);
} catch (Exception e) {
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void delete(User user) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
userDao.delete(user);
// 提交事务
TransactionUtil.commit(sqlSession);
} catch (Exception e) {
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void update(User user) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
userDao.update(user);
// 提交事务
TransactionUtil.commit(sqlSession);
} catch (Exception e) {
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public User findById(String id) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
return userDao.findById(id);
} catch (Exception e) {
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public List<User> findAll() {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
return userDao.findAll();
} catch (Exception e) {
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<User> all = userDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
} catch (Exception e) {
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void updateRole(String userId, String[] roleIds) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
userDao.deleteRole(userId);
for (String roleId : roleIds) {
userDao.updateRole(userId, roleId);
}
// 提交事务
TransactionUtil.commit(sqlSession);
} catch (Exception e) {
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public User login(String email, String pwd) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
UserDao userDao = MapperFactory.getMapper(sqlSession, UserDao.class);
// 调用Dao层操作
// 密码加密
pwd = MD5Util.md5(pwd);
return userDao.findByEmailAndPwd(email, pwd);
} catch (Exception e) {
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public List<Module> findMoudleById(String id) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession, ModuleDao.class);
// 调用Dao层操作
return moduleDao.findModuleByUserId(id);
} catch (Exception e) {
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
}role
package top.hellocode.web.controller.system;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Role;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
import java.util.Map;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:37
*/
// uri:/system/role?operation=list
@WebServlet("/system/role")
public class RoleServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}else if("author".equals(operation)){
this.author(request,response);
}else if("updateRoleModule".equals(operation)){
this.updateRoleModule(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// RoleService roleService = new RoleServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = roleService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Role> all = roleService.findAll();
request.setAttribute("roleList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class,"yyyy-MM-dd");
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.save(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Role> all = roleService.findAll();
request.setAttribute("roleList",all);
// 调用业务层方法查询数据
Role role = roleService.findById(id);
request.setAttribute("role",role);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/role/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class,"yyyy-MM-dd");
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.update(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Role role = BeanUtil.fillBean(request,Role.class);
// 调用业务层接口
// RoleService roleService = new RoleServiceImpl();
roleService.delete(role);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
private void author(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取要授权的角色id
String roleId = request.getParameter("id");
// 使用id查询对应的数据（角色对应的模块信息）
Role role = roleService.findById(roleId);
request.setAttribute("role",role);
// 根据当前角色id获取所有的模块数据，并加载关系数据
List<Map> map = moduleService.findAuthorDataByRoleId(roleId);
// map转json
ObjectMapper om = new ObjectMapper();
String json = om.writeValueAsString(map);
request.setAttribute("roleModuleJson",json);
// TODO 数据未查询
// 跳转到树页面中
request.getRequestDispatcher("/WEB-INF/pages/system/role/author.jsp").forward(request,response);
}
private void updateRoleModule(HttpServletRequest request, HttpServletResponse response) throws IOException {
String roleId = request.getParameter("roleId");
String moduleIds = request.getParameter("moduleIds");
roleService.updateRoleModule(roleId, moduleIds);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/role?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.RoleDao;
import top.hellocode.domain.system.Role;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.RoleService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:36
*/
public class RoleServiceImpl implements RoleService {
@Override
public void save(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession, RoleDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
role.setId(id);
// 调用Dao层操作
roleDao.save(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
roleDao.delete(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Role role) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
roleDao.update(role);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Role findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
return roleDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Role> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
return roleDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Role> all = roleDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void updateRoleModule(String roleId, String moduleIds) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
// 修改role_module
// 取消所有的现有关系，建立新的关系（多个）
roleDao.deleteRoleModule(roleId);
String[] moduleArray = moduleIds.split(",");
for(String moduleId : moduleArray){
roleDao.saveRoleModule(roleId,moduleId);
}
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Role> findAllRoleByUserId(String userId) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
RoleDao roleDao = MapperFactory.getMapper(sqlSession,RoleDao.class);
// 调用Dao层操作
return roleDao.findAllRoleByUserId(userId);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}module
package top.hellocode.web.controller.system;
import com.github.pagehelper.PageInfo;
import org.apache.commons.lang3.StringUtils;
import top.hellocode.domain.system.Module;
import top.hellocode.utils.BeanUtil;
import top.hellocode.web.controller.BaseServlet;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.List;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:48
*/
// uri:/system/module?operation=list
@WebServlet("/system/module")
public class ModuleServlet extends BaseServlet {
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String operation = request.getParameter("operation"); // 操作标志
if("list".equals(operation)){ // 进入列表页
this.list(request,response);
}else if("toAdd".equals(operation)){
this.toAdd(request,response);
}else if("save".equals(operation)){
this.save(request,response);
}else if("toEdit".equals(operation)){
this.toEdit(request,response);
}else if("edit".equals(operation)){
this.edit(request,response);
}else if("delete".equals(operation)){
this.delete(request,response);
}
}
private void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 获取数据
// ModuleService moduleService = new ModuleServiceImpl();
int page = 1;
int size = 5;
if(StringUtils.isNotBlank(request.getParameter("page"))){
page = Integer.parseInt(request.getParameter("page"));
}
if(StringUtils.isNotBlank(request.getParameter("size"))){
page = Integer.parseInt(request.getParameter("size"));
}
PageInfo all = moduleService.findAll(page, size);
// 将数据保存到指定的位置
request.setAttribute("page",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/list.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void toAdd(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 加载数据
List<Module> all = moduleService.findAll();
request.setAttribute("moduleList",all);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/add.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void save(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class,"yyyy-MM-dd");
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.save(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
private void toEdit(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
// 拿到要编辑的数据
String id = request.getParameter("id");
// 加载数据
List<Module> all = moduleService.findAll();
request.setAttribute("moduleList",all);
// 调用业务层方法查询数据
Module module = moduleService.findById(id);
request.setAttribute("module",module);
// 跳转页面
request.getRequestDispatcher("/WEB-INF/pages/system/module/update.jsp").forward(request,response); //将页面放到web-info下（安全）
}
private void edit(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class,"yyyy-MM-dd");
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.update(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
private void delete(HttpServletRequest request, HttpServletResponse response) throws IOException {
// 获取数据并封装对象
Module module = BeanUtil.fillBean(request,Module.class);
// 调用业务层接口
// ModuleService moduleService = new ModuleServiceImpl();
moduleService.delete(module);
// 跳转页面
response.sendRedirect(request.getContextPath() + "/system/module?operation=list");
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doPost(request,response);
}
}package top.hellocode.service.system.impl;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.apache.ibatis.session.SqlSession;
import top.hellocode.dao.system.ModuleDao;
import top.hellocode.domain.system.Module;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.system.ModuleService;
import top.hellocode.utils.TransactionUtil;
import java.util.List;
import java.util.Map;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年05月29日 19:42
*/
public class ModuleServiceImpl implements ModuleService {
@Override
public void save(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession, ModuleDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
module.setId(id);
// 调用Dao层操作
moduleDao.save(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void delete(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
moduleDao.delete(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public void update(Module module) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
moduleDao.update(module);
// 提交事务
TransactionUtil.commit(sqlSession);
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Module findById(String id) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findById(id);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Module> findAll() {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findAll();
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public PageInfo findAll(int page, int size) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
PageHelper.startPage(page, size);
List<Module> all = moduleDao.findAll();
PageInfo pageInfo = new PageInfo<>(all);
return pageInfo;
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public List<Map> findAuthorDataByRoleId(String roleId) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ModuleDao moduleDao = MapperFactory.getMapper(sqlSession,ModuleDao.class);
// 调用Dao层操作
return moduleDao.findAuthorDataByRoleId(roleId);
}catch (Exception e){
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
}配置文件
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.UserDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.User">
<id column="user_id" jdbcType="VARCHAR" property="id"/>
<result column="email" jdbcType="VARCHAR" property="email"/>
<result column="user_name" jdbcType="VARCHAR" property="userName"/>
<result column="password" jdbcType="VARCHAR" property="password"/>
<result column="state" jdbcType="DECIMAL" property="state"/>
<result column="gender" jdbcType="CHAR" property="gender"/>
<result column="telephone" jdbcType="VARCHAR" property="telephone"/>
<result column="birthday" jdbcType="VARCHAR" property="birthday"/>
<result column="join_date" jdbcType="VARCHAR" property="joinDate"/>
<result column="dept_id" jdbcType="VARCHAR" property="deptId"/>
<association
property="dept"
column="dept_id"
javaType="top.hellocode.domain.system.Dept"
select="top.hellocode.dao.system.DeptDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
user_id, email, user_name, password, state, gender, telephone, birthday, join_date, dept_id
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_user
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_user
where user_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_user where user_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.User">
insert into ss_user (user_id, email, user_name, password, state,
gender, telephone, birthday, join_date, dept_id
)
values (#{id,jdbcType=VARCHAR}, #{email,jdbcType=VARCHAR}, #{userName,jdbcType=VARCHAR},
#{password,jdbcType=VARCHAR}, #{state,jdbcType=DECIMAL}, #{gender,jdbcType=CHAR},
#{telephone,jdbcType=VARCHAR}, #{birthday,jdbcType=VARCHAR}, #{joinDate,jdbcType=VARCHAR},
#{deptId,jdbcType=VARCHAR}
)
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.User">
update ss_user
SET
user_name = #{userName,jdbcType=VARCHAR},
state = #{state,jdbcType=DECIMAL},
gender = #{gender,jdbcType=CHAR},
telephone = #{telephone,jdbcType=VARCHAR},
dept_id = #{deptId,jdbcType=VARCHAR}
where user_id = #{id,jdbcType=VARCHAR}
</update>
<!--配置根据roleId删除关系表数据-->
<delete id="deleteRole" parameterType="java.lang.String">
delete from ss_role_user
where user_id = #{userId,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="updateRole" parameterType="map">
insert into ss_role_user (role_id, user_id)
values (#{roleId,jdbcType=VARCHAR}, #{userId,jdbcType=VARCHAR})
</insert>
<select id="findByEmailAndPwd" parameterType="map" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_user
where email = #{email,jdbcType=VARCHAR} and password = #{password,jdbcType=VARCHAR}
</select>
</mapper><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.RoleDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.Role">
<id column="role_id" jdbcType="VARCHAR" property="id"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<result column="create_time" jdbcType="TIMESTAMP" property="createTime"/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
role_id, name, remark, create_time
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_role
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_role
where role_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_role
where role_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.Role">
insert into ss_role (role_id, name, remark, create_time)
values (#{id,jdbcType=VARCHAR}, #{name,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR},
#{createTime,jdbcType=TIMESTAMP})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.Role">
update ss_role
set name = #{name,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR},
create_time = #{createTime,jdbcType=TIMESTAMP}
where role_id = #{id,jdbcType=VARCHAR}
</update>
<!--配置根据roleId删除关系表数据-->
<delete id="deleteRoleModule" parameterType="java.lang.String">
delete from ss_role_module
where role_id = #{roleId,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="saveRoleModule" parameterType="map">
insert into ss_role_module (role_id, module_id)
values (#{roleId,jdbcType=VARCHAR}, #{moduleId,jdbcType=VARCHAR})
</insert>
<!--配置根据ID查询-->
<select id="findAllRoleByUserId" parameterType="java.lang.String" resultMap="BaseResultMap">
SELECT
role_id,
NAME,
CASE
WHEN role_id IN (SELECT role_id FROM ss_role_user WHERE user_id = #{'userId'})
THEN 'checked'
ELSE ''
END
AS remark
FROM
ss_role
</select>
</mapper><?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.system.ModuleDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.system.Module">
<id column="module_id" jdbcType="VARCHAR" property="id"/>
<result column="parent_id" jdbcType="VARCHAR" property="parentId"/>
<result column="name" jdbcType="VARCHAR" property="name"/>
<result column="ctype" jdbcType="DECIMAL" property="ctype"/>
<result column="state" jdbcType="DECIMAL" property="state"/>
<result column="curl" jdbcType="VARCHAR" property="curl"/>
<result column="remark" jdbcType="VARCHAR" property="remark"/>
<association
property="module"
javaType="top.hellocode.domain.system.Module"
column="parent_id"
select="top.hellocode.dao.system.ModuleDao.findById"
/>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
module_id, parent_id, name, ctype, state, curl, remark
</sql>
<!--配置查询所有，带条件-->
<select id="findAll" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_module
</select>
<!--配置根据ID查询-->
<select id="findById" parameterType="java.lang.String" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from ss_module
where module_id = #{id,jdbcType=VARCHAR}
</select>
<!--配置根据id删除-->
<delete id="delete" parameterType="java.lang.String">
delete from ss_module where module_id = #{id,jdbcType=VARCHAR}
</delete>
<!--配置全字段插入，当某个字段没有值时，插入null-->
<insert id="save" parameterType="top.hellocode.domain.system.Module">
insert into ss_module (module_id, parent_id, name, ctype, state, curl, remark)
values (#{id,jdbcType=VARCHAR}, #{parentId,jdbcType=VARCHAR},
#{name,jdbcType=VARCHAR}, #{ctype,jdbcType=DECIMAL}, #{state,jdbcType=DECIMAL},
#{curl,jdbcType=VARCHAR}, #{remark,jdbcType=VARCHAR})
</insert>
<!--配置全字段更新，当提供的数据为null时，数据库数据会被更新为null-->
<update id="update" parameterType="top.hellocode.domain.system.Module">
update ss_module
set parent_id = #{parentId,jdbcType=VARCHAR},
name = #{name,jdbcType=VARCHAR},
ctype = #{ctype,jdbcType=DECIMAL},
state = #{state,jdbcType=DECIMAL},
curl = #{curl,jdbcType=VARCHAR},
remark = #{remark,jdbcType=VARCHAR}
where module_id = #{id,jdbcType=VARCHAR}
</update>
<select id="findAuthorDataByRoleId" parameterType="string" resultType="java.util.Map">
select
module_id as id,
parent_id as pId,
name as name,
case
when module_id in (select module_id from ss_role_module where role_id = #{roleId})
then 'true'
else 'false'
end
as checked
from
ss_module
</select>
<!--配置根据用户ID查询-->
<select id="findModuleByUserId" parameterType="java.lang.String" resultMap="BaseResultMap">
/*userid->用户角色关系表->roleid->角色模块关系表->moduleid->module信息*/
SELECT DISTINCT
m.module_id, m.parent_id, m.name, m.ctype, m.state, m.curl, m.remark
FROM
ss_module AS m,
ss_role_module AS rm,
ss_role_user AS ru
WHERE
m.module_id = rm.module_id
AND rm.role_id = ru.role_id
AND ru.user_id = #{id,jdbcType=VARCHAR}
</select>
</mapper>页面
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@ include file="./WEB-INF/pages/base.jsp"%>
<!DOCTYPE html>
<html>
<head>
<!-- 页面meta -->
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>黑马面面管理系统</title>
<meta name="description" content="AdminLTE2定制版">
<meta name="keywords" content="AdminLTE2定制版">
<!-- Tell the browser to be responsive to screen width -->
<meta content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no" name="viewport">
<!-- 页面meta /-->
</head>
<body>
<div id="frameContent" class="content-wrapper" style="margin-left:0px;">
<!-- Content Header (Page header) -->
<section class="content-header">
<h1>
权限不足页面
</h1>
</section>
<!-- Main content -->
<section class="content">
<div class="error-page">
<div class="error-content" style="margin-left:0">
<h3><i class="fa fa-warning text-yellow"></i> Oops! 没有访问权限.</h3>
<p>
没有访问权限, 你可以 <a href="${pageContext.request.contextPath}/login?operation=login">返回到后台首页</a> 或者通过搜索查询
</p>
<form class="search-form">
<div class="input-group">
<input type="text" name="search" class="form-control" placeholder="搜索">
<div class="input-group-btn">
<button type="submit" name="submit" class="btn btn-warning btn-flat"><i class="fa fa-search"></i>
</button>
</div>
</div>
<!-- /.input-group -->
</form>
</div>
<!-- /.error-page -->
</div>
</section>
</div>
<!-- 内容区域 /-->
</body>
</html>前台系统
结构搭建
- 创建web工程
- 创建包层次结构
- 加载页面（Vue、ElementUI）
注册功能
Member字段
private String id;
private String nickName;
private String password;
private Date birthday;
private String gender;
private String email;
private String telephone;
private String address;
private Date registerDate;
private String state;页面
- 发送请求，传递json格式数据到后台
- 获取后台json数据
表现层
- 接收数据格式：json格式
- 返回数据：json格式
- 返回页面：无
- 数据层：同后台系统添加用户功能
- 业务层：同后台系统添加用户功能
前后端数据交互
package top.hellocode.web.controller;
import java.io.Serializable;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 19:46
*/
// 页面返回的结果数据封装对象
public class Result implements Serializable {
private String message; // 对应操作的返回消息
private boolean flag; // 对应操作的返回结果是否成功
private Object data; // 对应操作返回的具体数据
private Integer code; // 对应操作的返回状态码
public Result(String message, Object data) {
this.message = message;
this.data = data;
this.code = Code.SUCCESS;
this.flag = true;
}
public Result(String message, boolean flag, Object data, Integer code) {
this.message = message;
this.flag = flag;
this.data = data;
this.code = code;
}
}package top.hellocode.web.controller;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 19:48
*/
// 状态码类
public class Code {
public static final Integer SUCCESS = 20000;
public static final Integer FAIL = 50000;
}将要传递到前端的数据封装为对象，统一前后端格式
Servlet请求分发功能升级
- 反射思想
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String url = request.getRequestURI();
int lastIndex = url.lastIndexOf('/');
String methodName = url.substring(lastIndex + 1, url.length());
// 获取到了方法名叫做url的方法，利用反射执行，传递参数即可
Class clazz = this.getClass();
try {
Method method = clazz.getMethod(methodName,HttpServletRequest.class,HttpServletResponse.class);
Result ret = (Result) method.invoke(this, request, response);
returnData(response,ret);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}protected <T> T getData(HttpServletRequest request, Class<T> clazz) throws IOException {
// 收集数据
String json = JSON.parseObject(request.getInputStream(), String.class);
// 组织成一个实体类（Member）
return JSON.parseObject(json, clazz);
}
protected void returnData(HttpServletResponse response, Result result) throws IOException {
// 返回结果
response.setContentType("application/json;charset=utf-8");
JSON.writeJSONString(response.getOutputStream(),result);
}存在于BaseServlet中，MemberServlet中配置的Servlet路径是*，里面的方法使用请求地址
public Result register(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Member member = getData(request,Member.class);
// 调用逻辑层API
boolean flag = memberService.register(member);
// 返回的数据封装成一个对象
return new Result("注册成功！", null);
}登录功能
- 数据层（同后台系统登录功能）
- 业务层（同后台系统登录功能）
表现层
- 接收json数据
- 封装domain对象
- 返回Result对象
页面
- 发送请求
- 接收servlet响应的json数据
- 根据flag结果进行页面跳转处理
登录状态记录（客户端）
- 客户端使用localStorage存储登录状态数据，替代cookie
- 获取localStorage对象
storage = window.localStorage localStorage数据操作
// 设置数据（添加/修改） storage.属性名 = 值 storage['属性名'] = 值 storage.setItem('属性名','值') // 获取数据 alert(storage.属性名) alert(storage['属性名']) alert(storage.getItem('属性名')) // 删除数据 storage.removeItem('属性名')
localStorage使用注意事项
- 存储数据最大上限：5M
- 存储的数据类型：字符串【重要】
- 数据生命周期：永久性存储（必须通过指令清除）
登录状态记录（服务端）
- 服务端使用redis存储登录状态数据，替代session
优势
- 速度快
- 可以设置数据活动周期
- 缺点：与服务器状态不同步（通过设置web容器生命周期控制数据清理工作）
案例中应用
- 将登录用户的id作为数据存储的key
登录状态校验
- 依赖localStorage在客户端记录登录状态
- 依赖redis在服务器端记录登录状态
- 每次加载页面/刷新页面判定登录状态（替代过滤器的工作）
- 登录状态应用：控制页面菜单功能的显示
退出登录状态
- 清除localStorage在客户端记录的状态信息
- 清除redis在服务端记录的状态信息
- 注意：退出系统后需要再次加载页面状态或跳转一次页面（让导航栏回到未登录状态）
代码
页面
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>黑马面面</title>
<link rel="stylesheet" href="/css/tt.css">
<script src="/js/jquery-3.3.1.min.js"></script>
<script src="./js/vue.js" type="text/javascript"></script>
<script src="./js/vue-router.js" type="text/javascript"></script>
<script src="./js/axios-0.18.0.js" type="text/javascript"></script>
<script src="./element-ui/lib/index.js"></script>
<script src="https://unpkg.com/vue-cookies@1.7.0/vue-cookies.js"></script>
</head>
<body>
<div id="app">
<div class="top">
<span class="top-right" id="register" style="display: none">
<a href="./register.html" style="color:white">注册</a>
</span>
<span class="top-right" id="login" style="display: none">
<a href="./login.html" style="color:white">登录</a>
</span>
<span class="top-right" id="exit" style="display: none">
<a href="#" @click="logout()" style="color:white">退出</a>
</span>
<span class="top-right" id="myexam" style="display: none">
<a href="./history.html" style="color:white">历史测试</a>
</span>
<span class="top-right" id="exam" style="display: none">
<a href="./paper.html" style="color:white">开始测试</a>
</span>
<span class="top-right" id="nickname" style="display: none">
{{nickname}},你好
</span>
</div>
<div class="container">
<div class="left">
<a>
<img src="/img/logo.png" style="width: 200px;height: 70px"><br/>
</a>
<ul>
<li><a class="channel-item active" href="#">
<span class="">
推荐
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
视频解题
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
热点题型
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
解题直播
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
热门题库
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
高手过招
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
一对一解题
</span>
</a></li>
<li><a class="channel-item" href="#">
<span>
入职实测
</span>
</a></li>
</ul>
</div>
<div class="center">
<ul class="news_list">
<li class="">
<div class="news-box">
<div class="single-mode-lbox">
<a href="#" target="_blank">
<img src="img/question_store.png">
</a>
</div>
<div class="single-mode-rbox">
<div class="title-box">
<a href="group/6760571446231040523/" class="link">阿里题库解析</a>
</div>
<div class="">
<div class="bui-left footer-bar-left">
<a href="#" target="_blank" class="footer-bar-action tag tag-style-other">
新鲜出炉
</a>
<a href="#" target="_blank" class="footer-bar-action media-avatar">
<img src="img/question_store.png">
</a>
<a href="#" target="_blank" class="footer-bar-action source"> 黑马论坛 ⋅
</a>
<a href="#" target="_blank" class="footer-bar-action source"> 5万+阅读 ⋅
</a>
<span class="footer-bar-action"> 23分钟前</span></div>
</div>
</div>
</div>
</li>
</ul>
<!-- <div class="loading" style="text-align: center; height: 80px">
<img src="img/loading2.gif" height="100%">
</div> -->
</div>
<div class="right">
<div class="tt-input tt-input-group tt-input-group__append">
<div class="tt-input ">
<input type="text" placeholder="请输入要搜索内容" autocomplete="off" class="tt-input__inner">
</div>
<div class="tt-input">
<button type="button" class="tt-button tt-button--default">
<span>搜索</span>
</button>
</div>
</div>
</div>
</div>
</div>
<script>
/* 脚本中创建对象,处理业务 */
var vm = new Vue({
el: '#app',
data: {
nickname: '',
},
methods: {
checkLogin() {
//判断当前用户是否登录了，判断现在是否有登录人的信息
/* 状态1：未登录
document.querySelector("#register").style.display = 'block';
document.querySelector("#login").style.display = 'block';
document.querySelector("#myexam").style.display = 'none';
document.querySelector("#exam").style.display = 'none';
document.querySelector("#exit").style.display = 'none';
document.querySelector("#nickname").style.display = 'none';
*/
/* 状态2：已登录
document.querySelector("#register").style.display = 'none';
document.querySelector("#login").style.display = 'none';
document.querySelector("#myexam").style.display = 'block';
document.querySelector("#exam").style.display = 'block';
document.querySelector("#exit").style.display = 'block';
document.querySelector("#nickname").style.display = 'block';
*/
let _this = this;
//从localStorage中获取数据，获取当前保存的用户名，再根据用户名获取后台是否登录的状态
if(!window.localStorage){
alert("浏览器不支持localStorage，请升级浏览器")
}else {
//获取localStorage对象
let storage = window.localStorage;
alert("id："+storage.id);
//测试是否有登录数据，id
if(storage.id == undefined){
//如果本地没有用户信息，显示登陆和注册按钮
document.querySelector("#register").style.display = 'block';
document.querySelector("#login").style.display = 'block';
document.querySelector("#myexam").style.display = 'none';
document.querySelector("#exam").style.display = 'none';
document.querySelector("#exit").style.display = 'none';
document.querySelector("#nickname").style.display = 'none';
}else {
//如果本地存在用户信息，需要确认服务器是否存在当前用户登录信息（redis中）
//发送请求，根据当前id去服务器中查找对应的数据
axios.post('/member/checkLogin', '{"id":"'+storage.id+'"}').then(function (response) {
//alert(response.data.data)
//获取响应数据
let res = response.data;
//alert("redis服务器中存储的用户名信息 : "+res.data)
//判定本地用户对应是否处于登录状态，处于登录状态的用户具有用户名信息
if(res.data == undefined){
//如果没有用户名信息，当前用户未登录，显示登陆与注册按钮
document.querySelector("#register").style.display = 'block';
document.querySelector("#login").style.display = 'block';
document.querySelector("#myexam").style.display = 'none';
document.querySelector("#exam").style.display = 'none';
document.querySelector("#exit").style.display = 'none';
document.querySelector("#nickname").style.display = 'none';
}else{
//如果具有用户名信息，显示用户答题相关按钮
//设置vue对象nickname属性值
_this.nickname = res.data;
document.querySelector("#register").style.display = 'none';
document.querySelector("#login").style.display = 'none';
document.querySelector("#myexam").style.display = 'block';
document.querySelector("#exam").style.display = 'block';
document.querySelector("#exit").style.display = 'block';
//显示当前登录用户对应的登录信息组件
document.querySelector("#nickname").style.display = 'block';
}
}).catch(function (err) {
console.log(err)
});
}
}
},
logout(){
//1.获取localStorage
let storage = window.localStorage;
//2.发送请求，清除登录状态
axios.post('/member/logout', '{"id":"'+storage.id+'"}').then(function (response) {
//1.获取响应数据
let data = response.data;
//2.提示
//alert(data.flag);
}).catch(function (err) {
console.log(err)
});
//3.清理localStorage
window.localStorage.clear();
//4.通过调用checkLogin方法重置主页面的右上角显示区域
this.checkLogin();
}
},
created(){
this.checkLogin();
},
}
);
</script>
</body>
</html><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<meta name="description" content=""/>
<meta name="author" content=""/>
<link rel="icon" href="./img/asset-favicon.ico"/>
<title>注册页面</title>
<!-- 页面 css js -->
<!-- <script type="text/javascript" src="../../plugins/sui/sui.min.js" charset="UTF-8"></script> -->
<link rel="stylesheet" type="text/css" href="./plugins/normalize-css/normalize.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/yui/cssgrids-min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/sui/sui.min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/sui/sui-append.min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/font-awesome/css/font-awesome.min.css"/>
<link rel="stylesheet" type="text/css" href="./css/widget-base.css"/>
<link rel="stylesheet" type="text/css" href="./css/widget-head-foot.css"/>
<link rel="stylesheet" type="text/css" href="./css/page-sj-person-loginsign.css"/>
<link rel="stylesheet" href="./element-ui/lib/theme-chalk/index.css">
<script src="./js/vue.js" type="text/javascript"></script>
<script src="./js/axios-0.18.0.js" type="text/javascript"></script>
<script src="./element-ui/lib/index.js"></script>
</head>
<body>
<div id="app">
<!--头部导航-->
<header class="head-login">
<div class="wrapper">
<div class="sui-navbar">
<div class="navbar-inner">
<a href="./index.html" class="sui-brand"> <img src="./img/asset-logo-black.png" alt="刷题"/> </a>
<span class="login-text">| 注册</span>
</div>
</div>
</div>
</header>
<div class="item">
<div class="form">
<h3 class="loginsign-title">用户注册</h3>
<el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">
<el-form-item label="用户昵称" prop="nickname">
<el-input v-model="ruleForm.nickname"></el-input>
</el-form-item>
<el-form-item label="密码" prop="password">
<el-input type="password" v-model="ruleForm.password"></el-input>
</el-form-item>
<el-form-item label="生日" required>
<el-col :span="11">
<el-form-item prop="birthday">
<el-date-picker type="date" placeholder="选择日期" v-model="ruleForm.birthday" style="width: 100%;">
</el-date-picker>
</el-form-item>
</el-col>
</el-form-item>
<el-form-item label="性别" prop="gender">
<el-radio-group v-model="ruleForm.gender">
<el-radio label="男" v-model="male"></el-radio>
<el-radio label="女" v-model="female"></el-radio>
</el-radio-group>
</el-form-item>
<el-form-item label="邮箱" prop="email">
<el-input v-model="ruleForm.email" @blur="checkEmail"></el-input>
</el-form-item>
<el-form-item label="电话" prop="telephone">
<el-input v-model="ruleForm.telephone"></el-input>
</el-form-item>
<el-form-item label="地址" prop="address">
<el-input v-model="ruleForm.address"></el-input>
</el-form-item>
<el-form-item>
<el-button type="primary" @click="submitForm('ruleForm')">立即创建</el-button>
<el-button @click="resetForm('ruleForm')">重置</el-button>
</el-form-item>
</el-form>
</div></div>
<div class="footer">
<div class="wrapper">
<div class="footer-bottom">
<div class="link">
<dl>
<dt>
网站相关
</dt>
<dd>
关于我们
</dd>
<dd>
服务条款
</dd>
<dd>
帮助中心
</dd>
<dd>
编辑器语法
</dd>
</dl>
<dl>
<dt>
常用链接
</dt>
<dd>
传智播客
</dd>
<dd>
传智论坛
</dd>
</dl>
<dl>
<dt>
联系我们
</dt>
<dd>
联系我们
</dd>
<dd>
加入我们
</dd>
<dd>
建议反馈
</dd>
</dl>
<dl>
<dt>
关注我们
</dt>
<dd>
微博
</dd>
<dd>
twitter
</dd>
</dl>
<div class="xuke">
<h3>内容许可</h3>
<p>除特别说明外，用户内容均采用知识共享署名-非商业性使用-禁止演绎4.0 国际许可协议 (CC BY-NC-ND 4.0) 进行许可</p>
<p>本站由 传智研究院 提供更新服务</p>
</div>
</div>
<p class="Copyright">Copyright © 2017 传智问答社区 当前版本 0.0.1</p>
</div>
</div>
</div>
</div>
<!--<div id="app">-->
<!-- <el-form :model="ruleForm" :rules="rules" ref="ruleForm" label-width="100px" class="demo-ruleForm">-->
<!-- <el-form-item label="用户昵称" prop="nickname">-->
<!-- <el-input v-model="ruleForm.nickname"></el-input>-->
<!-- </el-form-item>-->
<script>
/* 脚本中创建对象,处理业务 */
new Vue({
el: '#app',
data: {
ruleForm: {
nickname: '',
password: '',
birthday: '',
gender: '',
email: '',
telephone:'',
address:''
},
rules: {
nickname: [
{ required: true, message: '请输入用户名称', trigger: 'blur' },
{ min: 3, max: 5, message: '长度在 3 到 5 个字符', trigger: 'blur' }
],
password: [
{ required: true, message: '请输入密码', trigger: 'blur' },
{ min: 3, max: 8, message: '长度在 3 到 5 个字符', trigger: 'blur' }
],
birthday: [
{ type: 'date', required: true, message: '请选择日期', trigger: 'change' }
],
gender: [
{ required: true, message: '请选择性别', trigger: 'change' }
],
email: [
{ required: true, message: '请填写邮箱', trigger: 'blur' }
],
telephone: [
{ required: true, message: '请填写联系电话', trigger: 'blur' }
],
address: [
{ required: true, message: '请填写地址', trigger: 'blur' }
]
}
},
methods: {
checkEmail: function() {
var regEmail = /^[A-Za-z0-9\u4e00-\u9fa5]+@[a-zA-Z0-9_-]+(\.[a-zA-Z0-9_-]+)+$/
if (this.ruleForm.email != '' && !regEmail.test(this.ruleForm.email)) {
this.$message({
message: '邮箱格式不正确',
type: 'error'
})
this.ruleForm.email = ''
}
},
submitForm(formName) {
this.$refs[formName].validate((valid) => {
if (valid) {
// alert('submit!');
axios.post('/member/register', this.ruleForm).then(function (response) {
//得到响应数据
var res = response.data;
//判断成功与否
if(res.flag){
window.open('/index.html','_self');
}else{
alert("提示："+res.message)
}
}).catch(function (err) {
console.log(err)
});
} else {
console.log('error submit!!');
return false;
}
});
},
resetForm(formName) {
this.$refs[formName].resetFields();
}
}
});
</script>
</body>
</html><!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!-- 上述3个meta标签*必须*放在最前面，任何其他内容都*必须*跟随其后！ -->
<meta name="description" content=""/>
<meta name="author" content=""/>
<link rel="icon" href="./img/asset-favicon.ico"/>
<title>登录页面</title>
<!-- 页面 css js -->
<!-- <script type="text/javascript" src="../../plugins/sui/sui.min.js" charset="UTF-8"></script> -->
<link rel="stylesheet" type="text/css" href="./plugins/normalize-css/normalize.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/yui/cssgrids-min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/sui/sui.min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/sui/sui-append.min.css"/>
<link rel="stylesheet" type="text/css" href="./plugins/font-awesome/css/font-awesome.min.css"/>
<link rel="stylesheet" type="text/css" href="./css/widget-base.css"/>
<link rel="stylesheet" type="text/css" href="./css/widget-head-foot.css"/>
<link rel="stylesheet" type="text/css" href="./css/page-sj-person-loginsign.css"/>
<link rel="stylesheet" href="./element-ui/lib/theme-chalk/index.css">
<script src="./js/vue.js" type="text/javascript"></script>
<script src="./js/axios-0.18.0.js" type="text/javascript"></script>
<script src="./element-ui/lib/index.js"></script>
</head>
<body>
<!--头部导航-->
<header class="head-login">
<div class="wrapper">
<div class="sui-navbar">
<div class="navbar-inner">
<a href="./index-login.html" class="sui-brand"> <img src="./img/asset-logo-black.png" alt="刷题"/> </a>
<span class="login-text">| 登录</span>
</div>
</div>
</div>
</header>
<div id="app">
<div class="wrapper loginsign">
<el-container style="height: auto; border: 1px solid #eee">
<div class="item">
<div class="form">
<h3 class="loginsign-title">用户登录</h3>
<el-form ref="form" :model="form" label-width="100px">
<div class="control-group">
<el-form-item label="登录名" class="control-label">
<el-input prefix-icon="el-icon-user" type="text" v-model="member.email" class="input-xlarge"
autocomplete="off"></el-input>
</el-form-item>
</div>
<div class="control-group">
<el-form-item label="密码" class="control-label">
<el-input prefix-icon="el-icon-lock" type="password" v-model="member.password" class="input-xlarge"
autocomplete="off"></el-input>
</el-form-item>
</div>
<div class="controls">
<el-form-item label="" class="control-label">
<el-checkbox-group v-model="member.remember">
<el-checkbox label="记住登录状态" name="member.remember"></el-checkbox>
</el-checkbox-group>
</el-form-item>
</div>
<div class="controls">
<el-form-item>
<el-button @click="onSubmit" class="sui-btn btn-danger btn-yes">登录</el-button>
</el-form-item>
</div>
<div class="other-methods">
</div>
<!--</form>-->
</el-form>
</div>
</div>
</el-container>
</div>
<div class="footer">
<div class="wrapper">
<div class="footer-bottom">
<div class="link">
<dl>
<dt>
网站相关
</dt>
<dd>
关于我们
</dd>
<dd>
服务条款
</dd>
<dd>
帮助中心
</dd>
<dd>
编辑器语法
</dd>
</dl>
<dl>
<dt>
常用链接
</dt>
<dd>
传智播客
</dd>
<dd>
传智论坛
</dd>
</dl>
<dl>
<dt>
联系我们
</dt>
<dd>
联系我们
</dd>
<dd>
加入我们
</dd>
<dd>
建议反馈
</dd>
</dl>
<dl>
<dt>
关注我们
</dt>
<dd>
微博
</dd>
<dd>
twitter
</dd>
</dl>
<div class="xuke">
<h3>内容许可</h3>
<p>除特别说明外，用户内容均采用知识共享署名-非商业性使用-禁止演绎4.0 国际许可协议 (CC BY-NC-ND 4.0) 进行许可</p>
<p>本站由 传智研究院 提供更新服务</p>
</div>
</div>
<p class="Copyright">Copyright © 2017 传智问答社区 当前版本 0.0.1</p>
</div>
</div>
</div>
</div>
<script>
/* 脚本中创建对象,处理业务 */
new Vue({
el: '#app',
data: {
member: {
email: '1242306285@qq.com',
password: '1234',
}
},
methods: {
onSubmit() {
axios.post('/member/login', this.member).then(function (response) {
//将登录人信息放到一个指定的位置，然后到index页面中判断这个位置中是否有登录数据
//localStorage基础操作
/*
if(!window.localStorage){
alert("更升级到高版本的浏览器，否则无法正常使用！")
}else{
storage = window.localStorage;
storage.a = 1
storage['b']='2'
storage.setItem('c','3')
storage.removeItem('c')
alert(storage.a)
alert(typeof(storage.a))
}
*/
/*
//根据返回的结果进行下一步的动作
if( res.flag){
// 跳转页面 index.html
window.open("index.html","_self");
}else{
alert(res.message);
}
*/
//得到响应数据
var res = response.data;
// 提示登录
// alert(res.message);
// alert(res.data.nickName);
//判断成功与否
if(res.flag){
if(!window.localStorage){
alert("更升级到高版本的浏览器，否则无法正常使用！")
}else {
var storage = window.localStorage;
storage.id = res.data.id;
//storage.userName = res.data.nickName;
}
window.open('/index.html','_self');
}
}).catch(function (err) {
console.log(err)
});
}
},
}
);
</script>
</body>
</html>配置文件
jedis.host=192.168.23.129
jedis.port=6379
jedis.maxTotal=30
jedis.maxIdle=10<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="top.hellocode.dao.front.MemberDao">
<!--配置实体类属性和数据库表中列的对应关系-->
<resultMap id="BaseResultMap" type="top.hellocode.domain.front.Member">
<id column="id" jdbcType="VARCHAR" property="id"/>
<result column="nick_name" jdbcType="VARCHAR" property="nickName"/>
<result column="password" jdbcType="VARCHAR" property="password"/>
<result column="gender" jdbcType="VARCHAR" property="gender"/>
<result column="birthday" jdbcType="TIMESTAMP" property="birthday"/>
<result column="email" jdbcType="VARCHAR" property="email"/>
<result column="telephone" jdbcType="VARCHAR" property="telephone"/>
<result column="address" jdbcType="VARCHAR" property="address"/>
<result column="register_date" jdbcType="TIMESTAMP" property="registerDate"/>
<result column="state" jdbcType="VARCHAR" property="state"></result>
</resultMap>
<!--配置查询的列名公共SQL语句-->
<sql id="Base_Column_List">
id, nick_name,password,gender,birthday,email,telephone,address,register_date,state
</sql>
<insert id="save" parameterType="top.hellocode.domain.front.Member">
insert into tr_member (id, nick_name, password, gender,
birthday, email,state,telephone, address, register_date)
values (#{id,jdbcType=VARCHAR}, #{nickName,jdbcType=VARCHAR}, #{password,jdbcType=VARCHAR}, #{gender,jdbcType=VARCHAR},
#{birthday,jdbcType=TIMESTAMP}, #{email,jdbcType=VARCHAR},#{state,jdbcType=VARCHAR},
#{telephone,jdbcType=VARCHAR}, #{address,jdbcType=VARCHAR}, #{registerDate,jdbcType=TIMESTAMP})
</insert>
<select id="findByEmailAndPwd" parameterType="map" resultMap="BaseResultMap">
select
<include refid="Base_Column_List"/>
from tr_member
where email = #{email,jdbcType=VARCHAR} and password = #{password,jdbcType=VARCHAR}
</select>
</mapper>java
package top.hellocode.service.front.impl;
import org.apache.ibatis.session.SqlSession;
import redis.clients.jedis.Jedis;
import top.hellocode.dao.front.MemberDao;
import top.hellocode.domain.front.Member;
import top.hellocode.factory.MapperFactory;
import top.hellocode.service.front.MemberService;
import top.hellocode.utils.JedisUtils;
import top.hellocode.utils.MD5Util;
import top.hellocode.utils.TransactionUtil;
import java.util.Date;
import java.util.UUID;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 19:23
*/
public class MemberServiceImpl implements MemberService {
@Override
public boolean register(Member member) {
SqlSession sqlSession = null;
try{
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
MemberDao memberDao = MapperFactory.getMapper(sqlSession,MemberDao.class);
// id并不在表现层接收，使用uuid自动生成
String id = UUID.randomUUID().toString();
member.setId(id);
member.setRegisterDate(new Date());
member.setState("1");
member.setPassword(MD5Util.md5(member.getPassword()));
// 调用Dao层操作
int row = memberDao.save(member);
// 提交事务
TransactionUtil.commit(sqlSession);
return row > 0;
}catch (Exception e){
TransactionUtil.rollback(sqlSession); // 回滚事务
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
}finally {
try{
TransactionUtil.close(sqlSession);
}catch (Exception e){
e.printStackTrace();
}
}
}
@Override
public Member login(String email, String password) {
SqlSession sqlSession = null;
try {
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
MemberDao memberDao = MapperFactory.getMapper(sqlSession, MemberDao.class);
password = MD5Util.md5(password);
Member member = memberDao.findByEmailAndPwd(email, password);
// 将登陆人的信息保存到redis中
Jedis jedis = JedisUtils.getResource();
// 使用登陆人的id作为key，设置3600秒的过期时间，value待定
jedis.setex(member.getId(),3600,member.getNickName());
jedis.close();
return member;
} catch (Exception e) {
e.printStackTrace();
throw new RuntimeException(e); // 抛出异常
// 记录日志（占位，功能未实现）
} finally {
try {
TransactionUtil.close(sqlSession);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public String getLoginInfo(String id) {
// 使用给定的id去redis查找当前数据
Jedis jedis = JedisUtils.getResource();
// 使用登陆人的id作为key，设置3600秒的过期时间，value待定
String nickName = jedis.get(id);
jedis.close();
return nickName;
}
@Override
public boolean logout(String id) {
// 使用给定的id去redis查找当前数据
Jedis jedis = JedisUtils.getResource();
Long row = jedis.del(id);
jedis.close();
return row > 0;
}
}package top.hellocode.web.controller.front;
import top.hellocode.domain.front.Member;
import top.hellocode.web.controller.BaseServlet;
import top.hellocode.web.controller.Code;
import top.hellocode.web.controller.Result;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 11:07
*/
@WebServlet("/member/*")
public class MemberServlet extends BaseServlet {
public Result login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Member member = getData(request,Member.class);
// 调用逻辑层API
member = memberService.login(member.getEmail(), member.getPassword());
if(member != null){
// 查询到了结果
return new Result("登录成功！", member);
}else{
// 登录失败
return new Result("用户名或密码错误，请重试",false, null, Code.LOGIN_FAIL);
}
}
public Result logout(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Member member = getData(request,Member.class);
// 调用逻辑层API
boolean flag = memberService.logout(member.getId());
if(flag){
// 成功
return new Result("退出成功！", flag);
}else{
// 登录失败
return new Result("",false, flag, Code.LOGOUT_FAIL);
}
}
public Result register(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Member member = getData(request,Member.class);
// 调用逻辑层API
boolean flag = memberService.register(member);
// 返回的数据封装成一个对象
return new Result("注册成功！", null);
}
public Result checkLogin(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
Member member = getData(request,Member.class);
// 根据获取到的id去redis查找，判断是否存在
String nickName = memberService.getLoginInfo(member.getId());
// 返回的数据封装成一个对象
return new Result("", nickName);
}
}package top.hellocode.web.controller;
import com.alibaba.fastjson.JSON;
import top.hellocode.service.front.MemberService;
import top.hellocode.service.front.impl.MemberServiceImpl;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 11:07
*/
public class BaseServlet extends HttpServlet {
protected MemberService memberService;
@Override
public void init() throws ServletException {
memberService = new MemberServiceImpl();
}
protected <T> T getData(HttpServletRequest request, Class<T> clazz) throws IOException {
// 收集数据
String json = JSON.parseObject(request.getInputStream(), String.class);
// 组织成一个实体类（Member）
return JSON.parseObject(json, clazz);
}
protected void returnData(HttpServletResponse response, Result result) throws IOException {
// 返回结果
response.setContentType("application/json;charset=utf-8");
JSON.writeJSONString(response.getOutputStream(),result);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
String url = request.getRequestURI();
int lastIndex = url.lastIndexOf('/');
String methodName = url.substring(lastIndex + 1, url.length());
// 获取到了方法名叫做url的方法，利用反射执行，传递参数即可
Class clazz = this.getClass();
try {
Method method = clazz.getMethod(methodName,HttpServletRequest.class,HttpServletResponse.class);
Result ret = (Result) method.invoke(this, request, response);
returnData(response,ret);
} catch (NoSuchMethodException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
this.doGet(request,response);
}
}package top.hellocode.web.controller;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 19:48
*/
// 状态码类
public class Code {
public static final Integer SUCCESS = 20000;
public static final Integer FAIL = 50000;
public static final Integer LOGIN_FAIL = 50101;
public static final Integer LOGOUT_FAIL = 50102;
}package top.hellocode.web.controller;
import java.io.Serializable;
/**
* @author HelloCode
* @site https://www.hellocode.top
* @date 2022年06月01日 19:46
*/
// 页面返回的结果数据封装对象
public class Result implements Serializable {
private String message; // 对应操作的返回消息
private boolean flag; // 对应操作的返回结果是否成功
private Object data; // 对应操作返回的具体数据
private Integer code; // 对应操作的返回状态码
public Result(String message, Object data) {
this.message = message;
this.data = data;
this.code = Code.SUCCESS;
this.flag = true;
}
public Result(String message, boolean flag, Object data, Integer code) {
this.message = message;
this.flag = flag;
this.data = data;
this.code = code;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public boolean isFlag() {
return flag;
}
public void setFlag(boolean flag) {
this.flag = flag;
}
public Object getData() {
return data;
}
public void setData(Object data) {
this.data = data;
}
public Integer getCode() {
return code;
}
public void setCode(Integer code) {
this.code = code;
}
}答题功能
生成试卷（加载题目/题干信息）
- 后台加载数据
页面使用v-for循环数据
<ul class="detail-list" v-for="question in questions"> </ul>页面使用v-if根据题型不同走向不同的分支
<el-form-item label="多选题" v-if="question.type == 2"> </el-form-item>
加载选项
- 从题目/题干信息中读取关联的选项数据
页面使用v-for循环数据
<el-checkbox v-for="(item,index) in question.questionItemList" :key="item.id" :label="item.content" :name="question.id" v-model="checked" @change="changeResultCheckBox(item)"> {{item.content}} </el-checkbox>前台和后台使用的表一样，但是关注的字段不同
提交试卷答案功能需求分析
- 单选与多选分情况处理
单选题提交数据结构
{"questionId":"题目id","answer":"选项id"}多选题提交数据结构
{"questionId":"题目id","answer":"选项id,选项id,选项id"}整体试卷提交数据结构
[ {"questionId":"题目id","answer":"选项id,选项id,选项id"}, {"questionId":"题目id","answer":"选项id,选项id,选项id"} ]- 每次答题操作，先删除原有答题记录，再添加本次答题记录
单选题提交处理方案
获取数据（题目id与选项id），组织答案数据
var temp = {"questionId":item.questionId,"answer":item.id};删除原有答题记录（使用过滤思想，取出results中当前题目之外的题目答案）
this.results = this.results.filter(e=>{return e.questionId !== item.questionId})添加本次答题结果数据到results中
this.results.push(temp);
多选题提交处理方案
var temp = this.results.find(e=>{return e.questionId === item.questionId})
if(temp == undefined){
//当前题目从来未作答过
temp = {"questionId":item.questionId,"answer":item.id};
}else{
if(this.checked){
// 添加该答案
temp.answer = temp.answer + "," + item.id;
}else{
//删除该答案
var arr = temp.answer.split(",");
var index = arr.indexOf(item.id); // 查找元素在数组中的索引
arr.splice(index,1); // 删除数组元素
temp.answer = arr.join(",");
}
}多选答案全部取消的处理策略
var temp = this.results.find(e=>{return e.questionId === item.questionId})
if(temp == undefined){
//当前题目从来未作答过
temp = {"questionId":item.questionId,"answer":item.id};
}else{
if(this.checked){
// 添加该答案
temp.answer = temp.answer + "," + item.id;
}else{
//删除该答案
var arr = temp.answer.split(",");
var index = arr.indexOf(item.id); // 查找元素在数组中的索引
arr.splice(index,1); // 删除数组元素
if(arr.length == 0){
this.results = this.results.filter(e=>{return e.questionId !== item.questionId})
return;
}
temp.answer = arr.join(",");
}
}提交试卷
服务端获取答案数据
// 1. 得到全部请求的json数据
String json = JSONObject.parseObject(request.getInputStream(), String.class);
// 2. 将json数据转换为json对象
JSONObject jsonObject = JSONObject.parseObject(json);
// 3. 获取当前提交试卷人的id
String memberId = jsonObject.getObject("memberId", String.class);
// 4. 获取当前提交的试卷信息
JSONArray jsonArray = jsonObject.getJSONArray("results");
List<ExamQuestion> examQuestionList = jsonArray.toJavaList(ExamQuestion.class);保存答题数据
boolean flag = true;
// 获取sqlSession对象
sqlSession = MapperFactory.getSqlSession();
// 获取Dao
ExamPaperDao examPaperDao = MapperFactory.getMapper(sqlSession, ExamPaperDao.class);
ExamQuestionDao examQuestionDao = MapperFactory.getMapper(sqlSession, ExamQuestionDao.class);
// 提交保存的试卷信息
ExamPaper examPaper = new ExamPaper();
String paperId = UUID.randomUUID().toString();
examPaper.setId(paperId);
examPaper.setApplyTime(new Date());
examPaper.setMemberId(memberId);
examPaper.setState("1");
flag = flag && examPaperDao.save(examPaper) > 0;
// 提交保存到试卷
for(ExamQuestion eq : examQuestionList){
eq.setId(UUID.randomUUID().toString());
eq.setExamPaperId(paperId);
flag = flag && examQuestionDao.save(eq) > 0;
}总结
后台系统开发
- 正向开发模式（数据-->业务-->表现-->页面）
- 服务端采用页面跳转形式响应客户端
- 以模块基础增删改查功能为主
前台系统开发
- 反向开发模式（页面-->表现-->业务-->数据）
- 服务端采用json数据形式响应客户端
- 以业务功能为主
部分功能还没有做，有兴趣的可以继续完善，基本思路一致
后台系统：审核题目
- 提供两个按钮，审核通过与审核不通过
后台系统：会员管理
- 提供用户启用、停用功能
- 提供查看用户信息功能（同修改但不能修改）
后台系统：会员答题管理
- 提供查看用户试卷答题记录功能
- 选做阅卷功能（自动阅卷与手工阅卷）
前台系统：历史答题记录查看
- 提供查看登录用户试卷答题记录功能
6 条评论
你好，这里的资源要去哪里下载呀
联系qq1242306285
就是前端页面axios的post请求报404的错误是怎么回事
联系qq1242306285
请问，前端主页面不能正常显示是什么情况，刚安装完node环境后，可以正常运行一次，但是启动项目后就不显示顶部，然后排版错乱
联系qq1242306285