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ssm框架+Layui整合案例_ssh+layui完整实例

作者：不正经 | 2024-04-23 23:16:32

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ssh+layui完整实例

业余写得整合案例 想学习的可以来参考 初来乍到

准备工作

Layui+tomcat+mysql

目录

1 实现的效果图

 2 实现代码

2.0 前端代码

 2.1 登录页面login.jsp

2.2 登录后跳转的主页面 main.jap

web.xml 这里面主要是加载tomcat的时候被加载的配置文件

4 pom.xml jar包和依赖

2.3 后端代码 

2.3.1 resources中的代码

2.3.1.1 接口的映射文件 mapper文件里的

2.3.1.2 spring 和springmvc 映射文件

2.3.2 java代码

1 controller层代码

2 dao层

3 entity 实现类层

​ 

4service 业务层 （业务层是一个接口 所有有一个实现类）

5 util （这里面主要是用来渲染页面的时候一些规范）

6 interceptor 拦截器

1 实现的效果图

 

 

 

 

 

 

 

 

 2 实现代码

2.0 前端代码

 2.1 登录页面login.jsp

  1. <%--
  2.   Created by IntelliJ IDEA.
  3.   User: 旧巷的常青藤
  4.   Date: 2021/12/10
  5.   Time: 14:57
  6.   To change this template use File | Settings | File Templates.
  7. --%>
  8. <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  9. <html>
  10. <head>
  11.     <title>登录页面</title>
  12.     <%-- 引入外部jar包--%>
  13.     <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/layui/css/layui.css"/>
  14.     <script type="text/javascript" src="${pageContext.request.contextPath}/layui/layui.js"></script>
  15.     <style>
  16.         #top{
  17.             background: url("img/4.png") no-repeat;
  18.             background-size: cover;
  19.         }
  20.     </style>
  21. </head>
  22.  
  23. <body id="top">
  24. <div style="width: 400px;height: 300px ;margin: auto;margin-top: 15%;">
  25. <form class="layui-form" action="">
  26.     <div class="layui-form-item">
  27.         <label class="layui-form-label"><strong>账号</strong></label>
  28.         <div class="layui-input-block">
  29.             <input type="text" name="username" lay-verify="required" autocomplete="off" placeholder="请输入账号" class="layui-input">
  30.         </div>
  31.     </div>
  32.     <div class="layui-form-item">
  33.         <label class="layui-form-label"><strong>密码</strong></label>
  34.         <div class="layui-input-block">
  35.             <input type="password" name="password" lay-verify="pass" placeholder="请输入密码" autocomplete="off" class="layui-input">
  36.         </div>
  37.     </div>
  38.     <div class="layui-form-item">
  39.         <div class="layui-input-block">
  40.             <button type="button" class="layui-btn" lay-submit="" lay-filter="demo1">登录</button>
  41.             <button type="button" class="layui-btn layui-btn-primary">重置</button>
  42.         </div>
  43.     </div>
  44. </form>
  45. </div>
  46. </body>
  47. <script>
  48.     layui.use(['form'], function(){
  49.         var form = layui.form
  50.             ,layer = layui.layer
  51.             ,$=layui.jquery;
  52.         //自定义验证规则
  53.         form.verify({
  54.             pass: [
  55.                 /^[\S]{6,12}$/
  56.                 ,'密码必须6到12位，且不能出现空格'
  57.             ]
  58.         });
  59.         //监听提交
  60.         form.on('submit(demo1)', function(data){
  61.             $.ajax({
  62.                 url:"${pageContext.request.contextPath}/login/login"
  63.                 ,type:"post"
  64.                 ,data:data.field
  65.                 ,success:function (result) {
  66.                     if(result.code===2000){
  67.                         layer.msg(result.msg,{icon:1})
  68.                         location.href="${pageContext.request.contextPath}/main/main"
  69.                     }else {
  70.                         layer.msg(result.msg,{icon:5})
  71.                     }
  72.                 }
  73.                 ,dataType:"json"
  74.             })
  75.             return false;
  76.         });
  77.     });
  78. </script>
  79. </html>

2.2 登录后跳转的主页面 main.jap

  1. <%--
  2.   Created by IntelliJ IDEA.
  3.   User: 旧巷的常青藤
  4.   Date: 2021/12/10
  5.   Time: 15:53
  6.   To change this template use File | Settings | File Templates.
  7. --%>
  8. <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  9. <html>
  10. <head>
  11.     <title>Title</title>
  12.     <link type="text/css" rel="stylesheet" href="${pageContext.request.contextPath}/layui/css/layui.css"/>
  13.     <script type="text/javascript" src="${pageContext.request.contextPath}/layui/layui.js"></script>
  14. </head>
  15. <form class="layui-form" action="">
  16.     <div class="layui-form-item">
  17.         <div class="layui-inline">
  18.             <div class="layui-input-inline">
  19.                 <input type="text" name="loginName" placeholder="请输入员工姓名"  autocomplete="off" class="layui-input">
  20.             </div>
  21.         </div>
  22.         <div class="layui-inline">
  23.             <div class="layui-input-inline">
  24.                 <input type="text" name="longinPass"   placeholder="请输入密码" autocomplete="off" class="layui-input">
  25.             </div>
  26.         </div>
  27.         <div class="layui-inline">
  28.             <div class="layui-input-inline">
  29.                 <button type="button" class="layui-btn" lay-submit="" lay-filter="search">搜索</button>
  30.             </div>
  31.         </div>
  32.     </div>
  33. </form>
  34. <body>
  35. <table class="layui-hide" id="test" lay-filter="test"></table>
  36.  
  37. <script type="text/html" id="toolbarDemo">
  38.     <div class="layui-btn-container">
  39.         <button class="layui-btn layui-btn-sm" lay-event="add">添加</button>
  40.         <button class="layui-btn layui-btn-sm" lay-event="deleteAll">批量删除</button>
  41.         <button class="layui-btn layui-btn-sm" lay-event="isAll">验证是否全选</button>
  42.     </div>
  43. </script>
  44.  
  45. <script type="text/html" id="barDemo">
  46.     <a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>
  47.     <a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>
  48. </script>
  49. <form class="layui-form" style="display: none" action="" id="uid" lay-filter="userform">
  50.     <input type="text" style="display: none" name="userid"/>
  51.     <div class="layui-form-item">
  52.         <label class="layui-form-label">账号</label>
  53.         <div class="layui-input-block">
  54.             <input type="text" name="loginname" lay-verify="title" autocomplete="off" placeholder="请输入标题" class="layui-input">
  55.         </div>
  56.     </div>
  57.     <div class="layui-form-item">
  58.         <label class="layui-form-label">密码</label>
  59.         <div class="layui-input-block">
  60.             <input type="text" name="longinpass" lay-verify="title" autocomplete="off" placeholder="请输入标题" class="layui-input">
  61.         </div>
  62.     </div>
  63.     <div class="layui-form-item">
  64.         <label class="layui-form-label">手机号</label>
  65.         <div class="layui-input-block">
  66.             <input type="text" name="phone" lay-verify="required"  placeholder="请输入" autocomplete="off" class="layui-input">
  67.         </div>
  68.     </div>
  69.     <div class="layui-form-item">
  70.         <label class="layui-form-label">职位</label>
  71.         <div class="layui-input-block">
  72.             <input type="text" name="realname" lay-verify="title" autocomplete="off" placeholder="请输入标题" class="layui-input">
  73.         </div>
  74.     </div>
  75.     <div class="layui-form-item">
  76.         <div class="layui-input-block">
  77.             <button type="button" class="layui-btn" lay-submit="" lay-filter="demo1">提交修改</button>
  78.             <button type="reset" class="layui-btn layui-btn-primary">重置</button>
  79.         </div>
  80.     </div>
  81. </form>
  82. <script>
  83.     layui.use('table', function(){
  84.         var form = layui.form;
  85.         var table = layui.table;
  86.         var $ =layui.jquery;
  87.  
  88.         //添加表单的搜索监听事件
  89.         form.on('submit(search)',function(data){
  90.             //表格数据重新渲染。
  91.             table.reload('test',{
  92.                 page: {
  93.                     curr: 1 //重新从第 1 页开始
  94.                 },
  95.                 where: { //按照什么进行查找
  96.                     "loginName": data.field.loginName,
  97.                     "longinPass": data.field.longinPass
  98.                 }
  99.             })
  100.         });
  101.         table.render({
  102.             elem: '#test'
  103.             ,url:'${pageContext.request.contextPath}/userInfo/list'
  104.             ,toolbar: '#toolbarDemo' //开启头部工具栏，并为其绑定左侧模板
  105.             ,title: '书籍数据表'
  106.             ,cols: [[
  107.                 {type: 'checkbox', fixed: 'left'}
  108.                 ,{field:'userid', title:'用户编号', sort: true}
  109.                 ,{field:'loginname', title:'用户名', edit: 'text'}
  110.                 ,{field:'longinpass', title:'密码',edit: 'text', sort: true}
  111.                 ,{field:'phone', title:'手机号', width:100}
  112.                 ,{field:'realname', title:'职位'}
  113.                 ,{fixed: 'right', title:'操作', toolbar: '#barDemo', width:150}
  114.             ]]
  115.             ,page: true
  116.             ,limit:5
  117.             ,limits:[2,5,10,15]
  118.         });
  119.         //监听行工具事件
  120.         table.on('tool(test)', function(obj){
  121.             var data = obj.data;
  122.             //console.log(obj)
  123.             if(obj.event === 'del'){
  124.                 layer.confirm('真的删除行么', function(index){
  125.                   $.ajax({
  126.                       url:"${pageContext.request.contextPath}/userInfo/delete",
  127.                       data:{"userid":data.userid},
  128.                       type: "post",
  129.                       success:function (rel) {
  130.                           if (rel.code===2000){
  131.                               layer.closeAll()
  132.                               layer.msg(rel.msg,{icon:1})
  133.                               table.reload("test")
  134.                           }
  135.                       },
  136.                       dataType:"json"
  137.                   })
  138.                 });
  139.             } else if(obj.event === 'edit') {
  140.                 layer.open({
  141.                     type: 1
  142.                     , id: 'layerDemo'//防止重复弹出
  143.                     , content: $("#uid")
  144.                     , shade: 0 //不显示遮罩
  145.                 });
  146.             }
  147.             form.val("userform",data)
  148.         });
  149.         //监听提交
  150.         form.on('submit(demo1)', function(data){
  151.            $.ajax({
  152.                url:"${pageContext.request.contextPath}/userInfo/update",
  153.                data:data.field,
  154.                type:"post",
  155.                success:function (rel) {
  156.                    layer.closeAll()
  157.                    layer.msg(rel.msg,{icon: 1})
  158.                    table.reload("test")
  159.                },
  160.                dataType: "json"
  161.            })
  162.         });
  163.         //头工具栏事件
  164.         table.on('toolbar(test)', function(obj){
  165.             var checkStatus = table.checkStatus(obj.config.id);
  166.             var  event  = obj.event;
  167.             $("#uid")[0].reset();
  168.             if (event==="add"){
  169.                 layer.open({
  170.                     type: 1
  171.                     ,content:$("#uid")
  172.                     ,shade: 0 //不显示遮罩
  173.                 });
  174.             }else if (event==="deleteAll"){
  175.                 var data = checkStatus.data;
  176.                 if (data.length<=0){
  177.                     layer.msg("请选择你要删除的行")
  178.                 }else {
  179.                      var  str =""
  180.                     for (var i=0;i<data.length;i++){
  181.                         str=str+","+data[i].userid
  182.                     }
  183.                     str=str.substring(1,str.length)
  184.                     let strings = str.split(",");
  185.                     console.log(strings)
  186.                     $.ajax({
  187.                         url:"${pageContext.request.contextPath}/userInfo/deleteAll"
  188.                         ,data:{"userid":str}
  189.                         ,success:function (rel) {
  190.                             if (rel.code===2000){
  191.                                 layer.closeAll()
  192.                                 layer.msg(rel.msg,{icon:1})
  193.                                 table.reload("test")
  194.                             }
  195.                         },
  196.                         dataType: "json"
  197.                     })
  198.                 }
  199.  
  200.             }
  201.         });
  202.     })
  203. </script>
  204. </body>
  205. </html>

web.xml 这里面主要是加载tomcat的时候被加载的配置文件

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
  3.          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.          xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
  5.          version="4.0">
  6.   <servlet>
  7.     <servlet-name>springmvc</servlet-name>
  8.     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  9.     <init-param>
  10.       <param-name>contextConfigLocation</param-name>
  11.       <param-value>classpath:springmvc.xml</param-value>
  12.     </init-param>
  13.   </servlet>
  14.   <servlet-mapping>
  15.     <servlet-name>springmvc</servlet-name>
  16.     <url-pattern>/</url-pattern>
  17.   </servlet-mapping>
  18.   <listener>
  19.     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  20.   </listener>
  21.   <context-param>
  22.     <param-name>contextConfigLocation</param-name>
  23.     <param-value>classpath:spring.xml</param-value>
  24.   </context-param>
  25. </web-app>

4 pom.xml jar包和依赖

  1. <?xml version="1.0" encoding="UTF-8"?>
  2.  
  3. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.   xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  5.   <modelVersion>4.0.0</modelVersion>
  6.  
  7.   <groupId>com.lc</groupId>
  8.   <artifactId>12-10ssm</artifactId>
  9.   <version>1.0-SNAPSHOT</version>
  10.   <packaging>war</packaging>
  11.  
  12.   <dependencies>
  13.     <!--分页-->
  14.     <dependency>
  15.       <groupId>com.github.pagehelper</groupId>
  16.       <artifactId>pagehelper</artifactId>
  17.       <version>5.1.11</version>
  18.     </dependency>
  19.     <dependency>
  20.       <groupId>junit</groupId>
  21.       <artifactId>junit</artifactId>
  22.       <version>4.13.2</version>
  23.     </dependency>
  24.     <dependency>
  25.       <groupId>org.springframework</groupId>
  26.       <artifactId>spring-tx</artifactId>
  27.       <version>5.2.9.RELEASE</version>
  28.     </dependency>
  29.     <dependency>
  30.       <groupId>org.springframework</groupId>
  31.       <artifactId>spring-jdbc</artifactId>
  32.       <version>5.2.9.RELEASE</version>
  33.     </dependency>
  34.     <!--spring和mybatis整合的依赖-->
  35.     <dependency>
  36.       <groupId>org.mybatis</groupId>
  37.       <artifactId>mybatis-spring</artifactId>
  38.       <version>2.0.6</version>
  39.     </dependency>
  40.     <!--druid连接池-->
  41.     <dependency>
  42.       <groupId>com.alibaba</groupId>
  43.       <artifactId>druid</artifactId>
  44.       <version>1.2.4</version>
  45.     </dependency>
  46.     <!--springmvc-->
  47.     <dependency>
  48.       <groupId>org.springframework</groupId>
  49.       <artifactId>spring-webmvc</artifactId>
  50.       <version>5.2.9.RELEASE</version>
  51.     </dependency>
  52.     <!--mybatis的依赖-->
  53.     <dependency>
  54.       <groupId>org.mybatis</groupId>
  55.       <artifactId>mybatis</artifactId>
  56.       <version>3.5.6</version>
  57.     </dependency>
  58.     <!--mysql的依赖-->
  59.     <dependency>
  60.       <groupId>mysql</groupId>
  61.       <artifactId>mysql-connector-java</artifactId>
  62.       <version>8.0.26</version>
  63.     </dependency>
  64.     <!--lombok-->
  65.     <dependency>
  66.       <groupId>org.projectlombok</groupId>
  67.       <artifactId>lombok</artifactId>
  68.       <version>1.18.22</version>
  69.     </dependency>
  70.     <!--jackson-->
  71.     <dependency>
  72.       <groupId>com.fasterxml.jackson.core</groupId>
  73.       <artifactId>jackson-databind</artifactId>
  74.       <version>2.12.4</version>
  75.     </dependency>
  76.     <!--servlet和jsp-->
  77.     <dependency>
  78.       <groupId>javax.servlet</groupId>
  79.       <artifactId>servlet-api</artifactId>
  80.       <version>2.5</version>
  81.     </dependency>
  82.     <dependency>
  83.       <groupId>javax.servlet.jsp</groupId>
  84.       <artifactId>jsp-api</artifactId>
  85.       <version>2.2</version>
  86.     </dependency>
  87.     <!--log4j-->
  88.     <dependency>
  89.       <groupId>log4j</groupId>
  90.       <artifactId>log4j</artifactId>
  91.       <version>1.2.17</version>
  92.     </dependency>
  93.     <dependency>
  94.       <groupId>org.slf4j</groupId>
  95.       <artifactId>slf4j-log4j12</artifactId>
  96.       <version>1.7.30</version>
  97.     </dependency>
  98.  
  99.   </dependencies>
  100. </project>

 

2.3 后端代码 

这里我主要用的是ssm框架  不会的 可以去看一下我的博客 里面详细的介绍的有

2.3.1 resources中的代码

这里面主要是接口方法的映射文件

2.3.1.1 接口的映射文件 mapper文件里的

这个可以自动生成 不懂得 可以去看我之前的博客  这里我就不多说了 

2.3.1.2 spring 和springmvc 映射文件

 spring.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd">
  6.     <!--包扫描：业务层service:-->
  7.     <context:component-scan base-package="com.lc.service"/>
  8.     <!--定义数据源:
  9.    https://blog.csdn.net/qq_35038153/article/details/77353689
  10.           DBCP:
  11.           C3P0:
  12.           Proxool:
  13.           BoneCP:
  14.           DRUID: 现在企业用的比较多
  15.                driverClassName = com.mysql.cj.jdbc.Driver
  16.                driver=com.mysql.cj.jdbc.Driver
  17.                url=jdbc:mysql:///student?serverTimezone=GMT&useSSL=false
  18.                username=root
  19.                password=密码
  20.                #初始化连接数量#
  21.                initialSize = 5
  22.                #最大连接数量
  23.                maxACtive = 10
  24.                #等待时间 3秒
  25.                maxWait = 3000
  26.     -->
  27.     <bean id="ds" class="com.alibaba.druid.pool.DruidDataSource">
  28.         <property name="driverClassName" value="com.mysql.cj.jdbc.Driver"/>
  29.         <property name="url" value="jdbc:mysql://localhost:3306/jdbc?serverTimezone=Asia/Shanghai"/>
  30.         <property name="username" value="root"/>
  31.         <property name="password" value="2001"/>
  32.         <!--初始化链接数量 根据你的项目评估-->
  33.         <property name="initialSize" value="5"/>
  34.         <!--  最大连接数-->
  35.         <property name="maxActive" value="10"/>
  36.         <!-- 等待时间  毫秒数-->
  37.         <property name="maxWait" value="5000"/>
  38.     </bean>
  39.     <!--spring把mybatis配置文件的内容封装到SqlSessionFactorybean类中。-->
  40.     <bean id="session" class="org.mybatis.spring.SqlSessionFactoryBean">
  41.         <property name="dataSource" ref="ds"/>
  42.         <property name="mapperLocations" value="classpath:mapper/*.xml"/>
  43.         <property name="plugins">
  44.             <array>
  45.                 <bean class="com.github.pagehelper.PageInterceptor">
  46.                     <property name="properties">
  47.                         <!--使用下面的方式配置参数，一行配置一个 -->
  48.                         <value>
  49.                             params=value1
  50.                         </value>
  51.                     </property>
  52.                 </bean>
  53.             </array>
  54.         </property>
  55.     </bean>
  56.     <!--为指定dao接口生成代理实现类。交于spring容器来管理dao接口的代理实现类对象。-->
  57.     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
  58.         <!--basePackage:为那些包下的dao接口生成代理实现类。-->
  59.         <property name="basePackage" value="com.lc.dao"/>
  60.     </bean>
  61.  
  62. </beans>

springmvc.xml

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <beans xmlns="http://www.springframework.org/schema/beans"
  3.        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  4.        xmlns:context="http://www.springframework.org/schema/context"
  5.        xmlns:mvc="http://www.springframework.org/schema/mvc"
  6.        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context https://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/mvc https://www.springframework.org/schema/mvc/spring-mvc.xsd">
  7.         <!--包扫描-->
  8.         <context:component-scan base-package="com.lc.controller"/>
  9.     <!--特殊注解-->
  10.         <mvc:annotation-driven/>
  11.     <!--静态资源放行-->
  12.         <mvc:default-servlet-handler/>
  13.     <!--视图解析器-->
  14.     <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
  15.         <property name="prefix" value="/WEB-INF/views/"/>
  16.         <property name="suffix" value=".jsp"/>
  17.     </bean>
  18.     <!--声明拦截器-->
  19.     <mvc:interceptors>
  20.         <mvc:interceptor>
  21.             <mvc:mapping path="/**"/>
  22.             <mvc:exclude-mapping path="/login/login"/>
  23.             <mvc:exclude-mapping path="/img/4.png"/>
  24.             <bean class="com.lc.interceptor.Myinterceptor"></bean>
  25.         </mvc:interceptor>
  26.     </mvc:interceptors>
  27. </beans>

日志文件 

  1. ### 设置###
  2. log4j.rootLogger = debug,stdout,D,E
  3.  
  4. ### 输出信息到控制抬 ###
  5. log4j.appender.stdout = org.apache.log4j.ConsoleAppender
  6. log4j.appender.stdout.Target = System.out
  7. log4j.appender.stdout.layout = org.apache.log4j.PatternLayout
  8. log4j.appender.stdout.layout.ConversionPattern = [%-5p] %d{yyyy-MM-dd HH:mm:ss,SSS} method:%l%n%m%n
  9.  
  10. ### 输出DEBUG 级别以上的日志到=E://logs/error.log ###
  11. log4j.appender.D = org.apache.log4j.DailyRollingFileAppender
  12. log4j.appender.D.File = F://logs/log.log
  13. log4j.appender.D.Append = true
  14. log4j.appender.D.Threshold = DEBUG 
  15. log4j.appender.D.layout = org.apache.log4j.PatternLayout
  16. log4j.appender.D.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n
  17.  
  18. ### 输出ERROR 级别以上的日志到=E://logs/error.log ###
  19. log4j.appender.E = org.apache.log4j.DailyRollingFileAppender
  20. log4j.appender.E.File =F://logs/error.log 
  21. log4j.appender.E.Append = true
  22. log4j.appender.E.Threshold = ERROR 
  23. log4j.appender.E.layout = org.apache.log4j.PatternLayout
  24. log4j.appender.E.layout.ConversionPattern = %-d{yyyy-MM-dd HH:mm:ss}  [ %t:%r ] - [ %p ]  %m%n

2.3.2 java代码

1 controller层代码

 pagecontroller

  1. package com.lc.controller;
  2.  
  3. import org.springframework.stereotype.Controller;
  4. import org.springframework.web.bind.annotation.RequestMapping;
  5.  
  6. /**
  7.  * @program: 12-10ssm
  8.  * @description:
  9.  * @author: IX亿少女的梦
  10.  * @create: 2021-12-10 15:52
  11.  **/
  12. @Controller
  13. @RequestMapping("main")
  14. public class PageController {
  15.     @RequestMapping("main")
  16.     public String main(){
  17.         return "mian";
  18.     }
  19. }

UserController

  1. package com.lc.controller;
  2.  
  3. import com.lc.service.UserService;
  4. import com.lc.util.CommonResult;
  5. import org.springframework.beans.factory.annotation.Autowired;
  6. import org.springframework.stereotype.Controller;
  7. import org.springframework.web.bind.annotation.RequestMapping;
  8. import org.springframework.web.bind.annotation.ResponseBody;
  9.  
  10. /**
  11.  * @program: 12-10ssm
  12.  * @description:
  13.  * @author: IX亿少女的梦
  14.  * @create: 2021-12-10 15:46
  15.  **/
  16. @Controller
  17. @RequestMapping("login")
  18. public class UserController {
  19.     @Autowired
  20.     private UserService userService;
  21.     @RequestMapping("login")
  22.     @ResponseBody
  23.     public CommonResult login(String username,String password){
  24.         CommonResult nameAndPass = userService.findNameAndPass(username, password);
  25.         return nameAndPass;
  26.     }
  27.  
  28. }

UserinfoController

  1. package com.lc.controller;
  2.  
  3. import com.lc.entity.User;
  4. import com.lc.entity.Userinfo;
  5. import com.lc.service.UserInfoService;
  6. import com.lc.util.CommonResult;
  7. import com.lc.util.TableYaui;
  8. import org.springframework.beans.factory.annotation.Autowired;
  9. import org.springframework.stereotype.Controller;
  10. import org.springframework.web.bind.annotation.RequestMapping;
  11. import org.springframework.web.bind.annotation.ResponseBody;
  12.  
  13. /**
  14.  * @program: 12-10ssm
  15.  * @description:
  16.  * @author: IX亿少女的梦
  17.  * @create: 2021-12-10 18:45
  18.  **/
  19. @Controller
  20. @RequestMapping("userInfo")
  21. public class UserInfoController {
  22.     @Autowired
  23.     private UserInfoService userInfoService;
  24.  
  25.     @RequestMapping("list")
  26.     @ResponseBody
  27.     public TableYaui list(int page,int limit,String loginName,String longinPass){
  28.         TableYaui byName = userInfoService.findByName(page, limit, loginName, longinPass);
  29.         return byName;
  30.     }
  31.     @RequestMapping("delete")
  32.     @ResponseBody
  33.     public CommonResult delete(int userid){
  34.         CommonResult delete = userInfoService.delete(userid);
  35.         return delete;
  36.     }
  37.     @RequestMapping("update")
  38.     @ResponseBody
  39.     public CommonResult update(Userinfo userinfo){
  40.         if (userinfo.getUserid()!=null){
  41.             CommonResult update = userInfoService.update(userinfo);
  42.             return update;
  43.         }else {
  44.             CommonResult insert = userInfoService.insert(userinfo);
  45.             return insert;
  46.         }
  47.     }
  48.  
  49.     @RequestMapping("deleteAll")
  50.     @ResponseBody
  51.     public CommonResult delete(String userid){
  52.         CommonResult commonResult = userInfoService.deleteByPrimaryKey(userid);
  53.         return commonResult;
  54.  
  55.     }
  56. }

2 dao层

这里面自动生成出来的  但是我在里面新添加了方法注意看

userdao

  1. package com.lc.dao;
  2.  
  3. import com.lc.entity.User;
  4. import org.apache.ibatis.annotations.Param;
  5.  
  6. public interface UserDao {
  7.     int deleteByPrimaryKey(Integer id);
  8.  
  9.     int insert(User record);
  10.  
  11.     int insertSelective(User record);
  12.  
  13.     User selectByPrimaryKey(Integer id);
  14.  
  15.     int updateByPrimaryKeySelective(User record);
  16.  
  17.     int updateByPrimaryKey(User record);
  18.  
  19.     User findNameAndPass(@Param("username") String username, @Param("password") String password);
  20.  
  21. }

 userinfodao

  1. ​
  2. package com.lc.dao;
  3.  
  4. import com.lc.entity.Userinfo;
  5. import com.lc.util.CommonResult;
  6. import org.apache.ibatis.annotations.Param;
  7.  
  8. import java.util.List;
  9.  
  10. public interface UserinfoDao {
  11.     int deleteByPrimaryKey(Integer userid);
  12.  
  13.     int insert(Userinfo record);
  14.  
  15.     int insertSelective(Userinfo record);
  16.  
  17.     Userinfo selectByPrimaryKey(Integer userid);
  18.  
  19.     int updateByPrimaryKeySelective(Userinfo record);
  20.  
  21.     int updateByPrimaryKey(Userinfo record);
  22.  
  23.  
  24.     List<Userinfo> findByName(@Param("loginName") String loginName, @Param("longinPass") String longinPass);
  25. }
  26.  
  27. ​

3 entity 实现类层

 

user

  1. package com.lc.entity;
  2.  
  3. import lombok.Data;
  4.  
  5. import java.io.Serializable;
  6.  
  7. /**
  8.  * user
  9.  * @author 
  10.  */
  11. @Data
  12. public class User implements Serializable {
  13.     /**
  14.      * 鐢ㄦ埛id
  15.      */
  16.     private Integer id;
  17.  
  18.     /**
  19.      * 鐧诲綍鍚?
  20.      */
  21.     private String username;
  22.  
  23.     private String password;
  24.  
  25.     /**
  26.      * 真实姓名
  27.      */
  28.     private String realname;
  29.  
  30.     private Integer status;
  31.  
  32.     private static final long serialVersionUID = 1L;
  33. }

 userinfo

  1. package com.lc.entity;
  2.  
  3. import lombok.Data;
  4.  
  5. import java.io.Serializable;
  6.  
  7. /**
  8.  * userinfo
  9.  * @author 
  10.  */
  11. @Data
  12. public class Userinfo implements Serializable {
  13.     /**
  14.      * 用户id
  15.      */
  16.     private Integer userid;
  17.  
  18.     /**
  19.      * 登录名
  20.      */
  21.     private String loginname;
  22.  
  23.     /**
  24.      * 登录密码
  25.      */
  26.     private String longinpass;
  27.  
  28.     /**
  29.      * 手机号
  30.      */
  31.     private String phone;
  32.  
  33.     /**
  34.      * 真实姓名
  35.      */
  36.     private String realname;
  37.  
  38.     private static final long serialVersionUID = 1L;
  39. }

4service 业务层 （业务层是一个接口 所有有一个实现类）

UserService
  1. package com.lc.service;
  2.  
  3. import com.lc.util.CommonResult;
  4.  
  5. /**
  6.  * @program: 12-10ssm
  7.  * @description:
  8.  * @author: IX亿少女的梦
  9.  * @create: 2021-12-10 15:10
  10.  **/
  11. public interface UserService {
  12.     public CommonResult findNameAndPass(String username, String password);
  13.  
  14. }
UserInfoService
  1. package com.lc.service;
  2.  
  3. import com.lc.entity.Userinfo;
  4. import com.lc.util.CommonResult;
  5. import com.lc.util.TableYaui;
  6.  
  7. /**
  8.  * @program: 12-10ssm
  9.  * @description:
  10.  * @author: IX亿少女的梦
  11.  * @create: 2021-12-10 18:40
  12.  **/
  13. public interface UserInfoService {
  14.     public TableYaui findByName(int page, int limit, String loginName, String longinPass);
  15.     public CommonResult delete(int userid);
  16.     public CommonResult update(Userinfo userinfo);
  17.     public CommonResult insert(Userinfo userinfo);
  18.     public CommonResult deleteByPrimaryKey(String userid);
  19. }
UserServiceImpl
  1. package com.lc.service.userserviceimpl;
  2.  
  3. import com.lc.dao.UserDao;
  4. import com.lc.entity.User;
  5. import com.lc.service.UserService;
  6. import com.lc.util.CommonResult;
  7. import com.lc.util.WebUtil;
  8. import org.springframework.beans.factory.annotation.Autowired;
  9. import org.springframework.stereotype.Service;
  10.  
  11. /**
  12.  * @program: 12-10ssm
  13.  * @description:
  14.  * @author: IX亿少女的梦
  15.  * @create: 2021-12-10 15:28
  16.  **/
  17. @Service("userService")
  18. public class UserServiceImpl implements UserService {
  19.     @Autowired
  20.     private UserDao userDao;
  21.     public CommonResult findNameAndPass(String username, String password) {
  22.         User user = userDao.findNameAndPass(username, password);
  23.         if (user==null){
  24.             return new CommonResult(5000,"账号或密码错误",null);
  25.         }
  26.         if (user.getStatus()==2){
  27.             return new CommonResult(5000,"该账户已经被限制",null);
  28.         }
  29.         WebUtil.getSession().setAttribute("user",user);
  30.         return new CommonResult(2000,"登录成功",null);
  31.     }
  32. }
UserInfoServiceImpl
  1. package com.lc.service.userserviceimpl;
  2.  
  3. import com.github.pagehelper.PageHelper;
  4. import com.github.pagehelper.PageInfo;
  5. import com.lc.dao.UserinfoDao;
  6. import com.lc.entity.Userinfo;
  7. import com.lc.service.UserInfoService;
  8. import com.lc.util.CommonResult;
  9. import com.lc.util.TableYaui;
  10. import org.springframework.beans.factory.annotation.Autowired;
  11. import org.springframework.stereotype.Service;
  12.  
  13. import java.util.List;
  14.  
  15. /**
  16.  * @program: 12-10ssm
  17.  * @description:
  18.  * @author: IX亿少女的梦
  19.  * @create: 2021-12-10 18:42
  20.  **/
  21. @Service("userInfoService")
  22. public class UserInfoServiceImpl implements UserInfoService {
  23.     @Autowired
  24.     private UserinfoDao userinfoDao;
  25.     public TableYaui findByName(int page, int limit, String loginName, String longinPass) {
  26.         PageHelper.startPage(page,limit); // 开启分页
  27.         List<Userinfo> byName = userinfoDao.findByName(loginName, longinPass);
  28.         PageInfo<Userinfo> userinfoPageInfo = new PageInfo<Userinfo>(byName);
  29.         return new TableYaui(0,"",userinfoPageInfo.getTotal(),userinfoPageInfo.getList());
  30.     }
  31.  
  32.     public CommonResult delete(int id) {
  33.         int delete = userinfoDao.deleteByPrimaryKey(id);
  34.         if (delete>-2){
  35.             return new CommonResult(2000,"删除成功",null);
  36.         }else {
  37.             return new CommonResult(5000,"删除失败",null);
  38.         }
  39.     }
  40.  
  41.     public CommonResult update(Userinfo userinfo) {
  42.         int i = userinfoDao.updateByPrimaryKey(userinfo);
  43.         if (i>-2){
  44.             return new CommonResult(2000,"修改成功",null);
  45.         }else {
  46.             return new CommonResult(5000,"修改失败",null);
  47.         }
  48.     }
  49.  
  50.     public CommonResult insert(Userinfo userinfo) {
  51.         int insert = userinfoDao.insert(userinfo);
  52.         if (insert>-2){
  53.             return new CommonResult(2000,"添加成功",null);
  54.         }else {
  55.             return new CommonResult(5000,"添加失败",null);
  56.         }
  57.     }
  58.  
  59.     public CommonResult deleteByPrimaryKey(String userid) {
  60.         String[] split = userid.split(",");
  61.         int i=0;
  62.         for (String s : split) {
  63.             i = userinfoDao.deleteByPrimaryKey(Integer.parseInt(s));
  64.  
  65.         }
  66.         if (i>-2){
  67.             return new CommonResult(2000,"批量删除成功",null);
  68.         }else {
  69.             return new CommonResult(5000,"批量删除失败",null);
  70.         }
  71.     }
  72. }

5 util （这里面主要是用来渲染页面的时候一些规范）

WebUtil
  1. package com.lc.util;
  2.  
  3. import org.springframework.web.context.request.RequestContextHolder;
  4. import org.springframework.web.context.request.ServletRequestAttributes;
  5.  
  6. import javax.servlet.http.HttpServletRequest;
  7. import javax.servlet.http.HttpSession;
  8.  
  9. /**
  10.  * @program: 12-10ssm1
  11.  * @description:
  12.  * @author: IX亿少女的梦
  13.  * @create: 2021-12-11 09:10
  14.  **/
  15. public class WebUtil {
  16.     /***
  17.      * 根据request获取session
  18.      * @return
  19.      */
  20.     public static HttpSession getSession(){
  21.         HttpSession session = getRequest().getSession();
  22.         return session;
  23.     }
  24.  
  25.     /***
  26.      * 获取request
  27.      * @return
  28.      */
  29.     public static HttpServletRequest getRequest(){
  30.         HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.getRequestAttributes()).getRequest();
  31.         return request;
  32.     }
  33. }
TableYaui
  1. package com.lc.util;
  2.  
  3. import lombok.AllArgsConstructor;
  4. import lombok.Data;
  5. import lombok.NoArgsConstructor;
  6.  
  7. /**
  8.  * @program: 12-10ssm
  9.  * @description:
  10.  * @author: IX亿少女的梦
  11.  * @create: 2021-12-10 16:26
  12.  **/
  13. @Data
  14. @NoArgsConstructor
  15. @AllArgsConstructor
  16. public class TableYaui {
  17.     private int code;
  18.     private String msg;
  19.     private long count;
  20.     private Object data;
  21. }
CommonResult
  1. package com.lc.util;
  2.  
  3. import lombok.AllArgsConstructor;
  4. import lombok.Data;
  5. import lombok.NoArgsConstructor;
  6.  
  7. /**
  8.  * @program: 12-10ssm
  9.  * @description:
  10.  * @author: IX亿少女的梦
  11.  * @create: 2021-12-10 15:35
  12.  **/
  13. @Data
  14. @NoArgsConstructor
  15. @AllArgsConstructor
  16. public class CommonResult {
  17.     private int code;
  18.     private String msg;
  19.     private Object data;
  20. }

6 interceptor 拦截器

  1. package com.lc.interceptor;
  2.  
  3. import org.springframework.web.servlet.HandlerInterceptor;
  4.  
  5. import javax.servlet.http.HttpServletRequest;
  6. import javax.servlet.http.HttpServletResponse;
  7.  
  8. /**
  9.  * @program: 12-10ssm1
  10.  * @description:
  11.  * @author: IX亿少女的梦
  12.  * @create: 2021-12-11 09:09
  13.  * 定义一个拦截器  实现HandlerInterceptor 从写 preHandle方法
  14.  * 
  15.  **/
  16. public class Myinterceptor  implements HandlerInterceptor {
  17.     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
  18.         Object user = request.getSession().getAttribute("user");
  19.         if (user!=null){
  20.             return true;
  21.         }else {
  22.             response.sendRedirect(request.getContextPath()+"/login.jsp");
  23.             return false;
  24.         }
  25.     }
  26. }

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