spring+springMvc+mybatis框架簡單實例
阿新 • • 發佈：2018-03-02
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web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>View Codessm</display-name> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:config/applicationContext.xml</param-value> </context-param> <servlet> <servlet-name>spring-mvc</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:config/spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>spring-mvc</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <!--編碼過濾器 --> <filter> <filter-name>characterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>characterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
spring-mvc.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 註解配置 自動掃描controller --> <context:component-scan base-package="com.controller" /> </beans>View Code
applicationContext.xml
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 註解配置 自動掃描裝載service --> <context:component-scan base-package="com.service" /> <!-- 1.數據源配置 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/com?useUnicode=true&characterEncoding=utf-8" /> <property name="username" value="root" /> <property name="password" value="root" /> </bean> <!-- 2.sqlSessionFactory配置 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 3.事務管理器配置 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource" /> </bean> <!-- 4.事務通知配置 --> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="*" /> </tx:attributes> </tx:advice> <!-- 5.事務切面配置 --> <aop:config> <!-- 只對業務邏輯層（service層）實施事務 --> <aop:pointcut id="serviceCut" expression="execution(* com.service.*Service.*(..))" /> <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceCut" /> </aop:config> <!-- 自動掃描mapper映射文件 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.mapper" /> </bean> </beans>View Code
controller（控制層）
package com.controller; import java.util.List; import java.util.UUID; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.ResponseBody; import com.entity.User; import com.service.UserService; @Controller @RequestMapping("/userController") public class UserController { private UserService userService; @Autowired public void setUserService(UserService userService) { this.userService = userService; } @RequestMapping(params="toUserList") public String selectList(HttpServletRequest req) { List<User> userList=userService.selectList(); req.setAttribute("userList", userList); return "user/userList.jsp"; } /*@RequestMapping(params = "doDel") @ResponseBody public void doDel(User user,HttpServletResponse response) throws IOException{ Boolean ok=userService.deleteById(user); if(ok){ String result= "{\"result\":\"成功\"}"; response.getWriter().write(result); }else{ String result= "{\"result\":\"失敗\"}"; response.getWriter().write(result); } }*/ @RequestMapping(params = "toAdd") public String toAdd(User user,HttpServletRequest req){ if(user.getId()!=null && !"".equals(user.getId())){ user=userService.selectById(user); req.setAttribute("u", user); } return "user/addOrUpdUser.jsp"; } @RequestMapping(params = "doAdd") public String doAdd(User user,HttpServletResponse response,HttpServletRequest req){ if(user.getId()!=null && !"".equals(user.getId())){ userService.doUpdate(user); }else{ user.setId(UUID.randomUUID().toString().replace("-", "")); userService.doAdd(user); } return "redirect:userController.do?toUserList"; } @RequestMapping(params = "doDel") @ResponseBody public void doDel(User user,HttpServletResponse response){ Boolean ok= userService.doDel(user); } }View Code
service(服務層)
package com.service; import java.util.List; import com.entity.User; public interface UserService { List<User> selectList(); void doAdd(User user); User selectById(User user); void doUpdate(User user); Boolean doDel(User user); }View Code
package com.service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.entity.User; import com.mapper.UserMapper; import com.service.UserService; @Service public class UserServiceImpl implements UserService { private UserMapper userMapper; @Autowired public void setUserMapper(UserMapper userMapper) { this.userMapper = userMapper; } @Override public List<User> selectList() { return userMapper.selectList(); } @Override public void doAdd(User user) { userMapper.doAdd(user); } @Override public User selectById(User user) { return userMapper.selectById(user); } @Override public void doUpdate(User user) { userMapper.doUpdate(user); } @Override public Boolean doDel(User user) { return userMapper.doDel(user)>0; } }View Code
mapper(持久層)
package com.mapper; import java.util.List; import com.entity.User; public interface UserMapper { List<User> selectList(); User selectById(User user); void doUpdate(User user); void doAdd(User user); int doDel(User user); }View Code
mapper.xml(mapper映射文件)
<?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="com.mapper.UserMapper"> <!-- parameterType="com.entity.User" --> <select id="selectList" resultType="com.entity.User"> select * from user; </select> <select id="selectById" parameterType="com.entity.User" resultType="com.entity.User"> select * from user where 1=1 and id=#{id} </select> <update id="doUpdate" parameterType="com.entity.User"> update user set <if test="userName!=null and userName!=‘‘"> userName=#{userName} </if> where 1=1 and id=#{id} </update> <insert id="doAdd" parameterType="com.entity.User"> insert into user ( id <if test="userName!=null and userName!=‘‘"> ,userName </if> ) values ( #{id} <if test="userName !=null and userName !=‘‘"> ,#{userName} </if> ) </insert> <delete id="doDel" parameterType="com.entity.User"> delete from user where id=#{id} </delete> </mapper>View Code
entity(實體)
package com.entity; public class User { private String id; private String userName; public String getId() { return id; } public void setId(String id) { this.id = id; } public String getUserName() { return userName; } public void setUserName(String userName) { this.userName = userName; } }View Code
視圖層(jsp)
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>userList</title> </head> <script type="text/javascript" src="/ssm/js/jquery-1.10.2.js"></script> <style type="text/css"> .tab{ width:50%; height:30%; text-align:center; border-collapse:collapse; } </style> <body> <button onclick="toAdd()">添加</button> <table class="tab" border="1"> <tr> <td>編號</td> <td>姓名</td> <td>操作</td> </tr> <c:forEach var="user" items="${userList}"> <tr> <td>${user.id}</td> <td>${user.userName}</td> <td> <a href="/ssm/userController.do?toAdd&id=${user.id}">編輯</a> <%-- <a href="javascript:doDel(‘${user.id}‘)">刪除</a> </td> --%> </tr> </c:forEach> </table> </body> <script type="text/javascript"> function doDel(id){ debugger; $.ajax({ type: "POST", url: "/ssm/userController.do?doDel", data: { id : id }, dataType: "json", success: function(data){ location.reload(); alert(data.result); } }); } function toAdd(){ location.href="/ssm/userController.do?toAdd"; } </script> </html>View Code
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <!DOCTYPE html> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>addOrUpdUser</title> </head> <body> <form action="/ssm/userController.do?doAdd" method="post"> 編號：<input type="text" name="id" value="${u.id}" readonly="readonly"> 姓名：<input type="text" name="userName" value="${u.userName}"> <button type="submit">確定</button> </form> </body> </html>View Code
spring+springMvc+mybatis框架簡單實例