整合Spring、SpringMVC、MyBatis

spring+springmvc+mybatis集成

一个核心：将对象交给spring管理。

1新建web项目

2添加项目jar包

spring包见上一篇博客

3建立项目的目录结构

4完成Mapper的集成

和mybatis进行集成，交给spring产生Mapper接口的代理对象。

4.1建立Mapper接口

 package org.guangsoft.mapper;

 import java.util.List;

 import org.guangsoft.pojo.Privilege;

 public interface PrivilegeMapper
 {
     public void addPrivilege(Privilege privilege);
     public void deletePrivilege(Privilege privilege);
     public void updatePrivilege(Privilege privilege);
     public Privilege selectPrivilegeById(Privilege privilege);
     public List<Privilege> selectAllPrivileges();
 }

4.2建立Mapper.xml文件

 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE mapper PUBLIC "-//mybatis.org/DTD Mapper 3.0" "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
 <mapper namespace="org.guangsoft.mapper.PrivilegeMapper">
      <insert id="addPrivilege" parameterType="org.guangsoft.pojo.Privilege">
          insert into privilege values(null,#{pname})
      </insert>
      <delete id="deletePrivilege" parameterType="org.guangsoft.pojo.Privilege">
          delete from privilege
      </delete>
      <delete id="updatePrivilege" parameterType="org.guangsoft.pojo.Privilege">
          update privilege set pname=#{pname} where pid=#{pid}
      </delete>
      <select id="selectPrivilegeById" parameterType="org.guangsoft.pojo.Privilege" resultType="org.guangsoft.pojo.Privilege">
          select * from privilege where pid=#{pid}
      </select>
      <select id="selectAllPrivileges" resultType="org.guangsoft.pojo.Privilege">
          select * from privilege
      </select>
 </mapper> 

4.3建立application_mapper.xml

在config下建立：

配置数据库连接池。

管理SqlSessionFactory，注入DataSource

产生Mapper接口的代理对象。

 <?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:p="http://www.springframework.org/schema/p"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd">

     <!-- 数据库连接池 -->
     <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
         <!-- 注入数据库连接字符串 -->
         <property name="driverClass" value="com.mysql.jdbc.Driver"></property>
         <property name="jdbcUrl" value="jdbc:mysql://127.0.0.1:3306/test"></property>
         <property name="user" value="root"></property>
         <property name="password" value="root"></property>
     </bean>
     <!-- 实例化sessionFactory -->
     <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
         <!-- 注入数据库连接池 -->
         <property name="dataSource" ref="dataSource"></property>
     </bean>
     <!-- 产生mapper接口的代理对象
         mapper接口和mapperxml名字必须一样
         mapper.java和mapper.xml必须在同一目录下
         产生的代理对象id文件Mapper接口的第一个字母小写
     -->
     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
         <!-- 注入sessionFactory -->
         <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
         <!-- 注入扫描的包 -->
         <property name="basePackage" value="org.guangsoft.mapper"></property>
     </bean>
 </beans> 

5完成service的功能

5.1建立Service接口

 package org.guangsoft.service;

 import java.util.List;

 import org.guangsoft.pojo.Privilege;

 public interface PrivilegeService
 {
     public void addPrivilege(Privilege privilege);
     public void deletePrivilege(Privilege privilege);
     public void updatePrivilege(Privilege privilege);
     public Privilege selectPrivilegeById(Privilege privilege);
     public List<Privilege> selectAllPrivileges();
 } 

5.2建立业务接口实现类

将实现类的对象纳入spring容器。注入Mapper接口的代理对象

 package org.guangsoft.service.impl;

 import java.util.List;

 import org.guangsoft.mapper.PrivilegeMapper;
 import org.guangsoft.pojo.Privilege;
 import org.guangsoft.service.PrivilegeService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;

 @Service
 public class PrivilegeServiceImpl implements PrivilegeService
 {
     /**
      * 注入Mapper接口的代理对象
      */
     @Autowired
     private PrivilegeMapper privilegeMapper;

     @Override
     public void addPrivilege(Privilege privilege)
     {
         privilegeMapper.addPrivilege(privilege);
     }

     @Override
     public void deletePrivilege(Privilege privilege)
     {
         privilegeMapper.deletePrivilege(privilege);
     }

     @Override
     public void updatePrivilege(Privilege privilege)
     {
         privilegeMapper.updatePrivilege(privilege);
     }

     @Override
     public Privilege selectPrivilegeById(Privilege privilege)
     {
         return privilegeMapper.selectPrivilegeById(privilege);
     }

     @Override
     public List<Privilege> selectAllPrivileges()
     {
         return privilegeMapper.selectAllPrivileges();
     }

 } 

5.3建立application_service.xml

扫描service包

事务配置

 <?xml version="1.0" encoding="UTF-8"?>
 <beans
     xmlns="http://www.springframework.org/schema/beans"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:tx="http://www.springframework.org/schema/tx"
     xmlns:aop="http://www.springframework.org/schema/aop"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:p="http://www.springframework.org/schema/p"
     xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd">

     <!-- 开启service包的扫描 -->
     <context:component-scan base-package="org.guangsoft.service.impl"></context:component-scan>
         <!-- 配置事务  实例化事务管理器 -->
         <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
             <property name="dataSource" ref="dataSource"></property>
         </bean>
         <!-- 配置切面 -->
         <tx:advice id="txAdvice" transaction-manager="transactionManager">
             <tx:attributes>
                 <tx:method name="add*" isolation="DEFAULT" propagation="REQUIRED"/>
             </tx:attributes>
         </tx:advice>
         <aop:config>
             <aop:pointcut expression="execution(* org.guangsoft.service.impl.*.*(..))" id="pc"/>
             <aop:advisor advice-ref="txAdvice" pointcut-ref="pc"/>
         </aop:config>
 </beans> 

6完成Action的功能

6.1建立Handler处理器

 package org.guangsoft.controller;

 import org.guangsoft.pojo.Privilege;
 import org.guangsoft.service.PrivilegeService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.RequestMapping;

 @Controller
 public class PrivilegeController
 {
     @Autowired
     private PrivilegeService privilegeService;
     //定义菜单项求求的方法
     @RequestMapping("/addPrivilege")
     public String addPrivilege(Privilege privilege)
     {
         privilegeService.addPrivilege(privilege);
         return "index.jsp";
     }
 }

6.2建立springmvc的配置文件

 <?xml version="1.0" encoding="UTF-8"?>
 <beans
     xmlns="http://www.springframework.org/schema/beans"
     xmlns:context="http://www.springframework.org/schema/context"
     xmlns:mvc="http://www.springframework.org/schema/mvc"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xmlns:p="http://www.springframework.org/schema/p"
     xsi:schemaLocation=
     "http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
     http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
     http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">

     <!-- 开启扫描注解 -->
     <context:component-scan base-package="org.guangsoft.controller"></context:component-scan>
     <!-- 开启映射注解和适配注解 -->
     <mvc:annotation-driven></mvc:annotation-driven>
 </beans> 

7配置web.xml

 <?xml version="1.0" encoding="UTF-8"?>
 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
   <context-param>
     <param-name>contextConfigLocation</param-name>
     <param-value>classpath:application_*.xml</param-value>
   </context-param>
   <listener>
     <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
   </listener>
   <servlet>
     <servlet-name>springmvc</servlet-name>
     <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
     <init-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>classpath:springmvc_servlet.xml</param-value>
     </init-param>
     <load-on-startup>1</load-on-startup>
   </servlet>
   <servlet-mapping>
     <servlet-name>springmvc</servlet-name>
     <url-pattern>*.action</url-pattern>
   </servlet-mapping>
 </web-app> 

8建立视图页面

 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 <%
 String path = request.getContextPath();
 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 %>

 <!DOCTYPE HTML>
 <html>
   <head>
     <base href="<%=basePath%>">
     <title>My JSP 'index.jsp' starting page</title>
     <meta http-equiv="pragma" content="no-cache">
     <meta http-equiv="cache-control" content="no-cache">
   </head>

   <body>
       <div align="center">
       <form action="addPrivilege.action" method="post">
           <div>pname:<input name="pname"  /></div>
           <div><input type="submit" value="提交" /></div>
       </form>
       </div>
   </body>
 </html> 

9发布测试