MyBatis(8)——Mybatis3.x与Spring4.x整合

来源：互联网发布：mac 怎么用f5 编辑：程序博客网时间：2024/06/08 03:25

原:http://www.cnblogs.com/xdp-gacl/p/4271627.html

sql

CREATE DATABASE spring4_mybatis3;USE spring4_mybatis3;DROP TABLE IF EXISTS t_user;CREATE TABLE t_user (  user_id CHAR(32) NOT NULL,  user_name VARCHAR(30) DEFAULT NULL,  user_birthday DATE DEFAULT NULL,  user_salary DOUBLE DEFAULT NULL,  PRIMARY KEY (user_id)) ENGINE=INNODB DEFAULT CHARSET=utf8;

pom.xml

<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><groupId>me</groupId><artifactId>spring4-mybatis3</artifactId><packaging>war</packaging><version>0.0.1-SNAPSHOT</version><name>spring4-mybatis3 Maven Webapp</name><url>http://maven.apache.org</url><dependencies><!-- 添加Spring-core包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-core</artifactId><version>4.1.4.RELEASE</version></dependency><!-- 添加spring-context包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.1.4.RELEASE</version></dependency><!-- 添加spring-tx包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-tx</artifactId><version>4.1.4.RELEASE</version></dependency><!-- 添加spring-jdbc包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>4.1.4.RELEASE</version></dependency><!-- 为了方便进行单元测试，添加spring-test包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-test</artifactId><version>4.1.4.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-beans</artifactId><version>4.1.4.RELEASE</version></dependency><!--添加spring-web包 --><dependency><groupId>org.springframework</groupId><artifactId>spring-web</artifactId><version>4.1.4.RELEASE</version></dependency><!--添加aspectjweaver包 --><dependency><groupId>org.aspectj</groupId><artifactId>aspectjweaver</artifactId><version>1.8.5</version></dependency><!-- 添加mybatis的核心包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.2.8</version></dependency><!-- 添加mybatis与Spring整合的核心包 --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.2.2</version></dependency><!-- 添加servlet3.0核心包 --><dependency><groupId>javax.servlet</groupId><artifactId>javax.servlet-api</artifactId><version>3.0.1</version></dependency><dependency><groupId>javax.servlet.jsp</groupId><artifactId>javax.servlet.jsp-api</artifactId><version>2.3.2-b01</version></dependency><!-- jstl --><dependency><groupId>javax.servlet</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- 添加mysql驱动包 --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.34</version></dependency><!-- 添加druid连接池包 --><dependency><groupId>com.alibaba</groupId><artifactId>druid</artifactId><version>1.0.12</version></dependency><!-- 添加junit单元测试包 --><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.12</version><scope>test</scope></dependency></dependencies><build><finalName>spring4-mybatis3</finalName></build></project>

dbconfig.properties

driverClassName=com.mysql.jdbc.DrivervalidationQuery=SELECT 1jdbc_url=jdbc:mysql://localhost:3306/spring4_mybatis3?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNulljdbc_username=rootjdbc_password=root

spring.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/beanshttp://www.springframework.org/schema/beans/spring-beans-3.0.xsdhttp://www.springframework.org/schema/contexthttp://www.springframework.org/schema/context/spring-context-3.0.xsd">    <!-- 引入dbconfig.properties属性文件 -->    <context:property-placeholder location="classpath:dbconfig.properties" />    <!-- 自动扫描(自动注入)，扫描me.gacl.service这个包以及它的子包的所有使用@Service注解标注的类 -->    <context:component-scan base-package="me.service" /></beans>

spring-mybatis.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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" 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.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">    <!-- JNDI方式配置数据源 -->    <!-- <bean id="dataSource" class="org.springframework.jndi.JndiObjectFactoryBean"> <property name="jndiName" value="${jndiName}"></property> </bean> -->    <!-- ========================================配置数据源========================================= -->    <!-- 配置数据源，使用的是alibaba的Druid(德鲁伊)数据源 -->    <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">        <property name="url" value="${jdbc_url}" />        <property name="username" value="${jdbc_username}" />        <property name="password" value="${jdbc_password}" />        <!-- 初始化连接大小 -->        <property name="initialSize" value="0" />        <!-- 连接池最大使用连接数量 -->        <property name="maxActive" value="20" />        <!-- 连接池最大空闲 -->        <property name="maxIdle" value="20" />        <!-- 连接池最小空闲 -->        <property name="minIdle" value="0" />        <!-- 获取连接最大等待时间 -->        <property name="maxWait" value="60000" />        <!--         <property name="poolPreparedStatements" value="true" />         <property name="maxPoolPreparedStatementPerConnectionSize" value="33" />         -->        <property name="validationQuery" value="${validationQuery}" />        <property name="testOnBorrow" value="false" />        <property name="testOnReturn" value="false" />        <property name="testWhileIdle" value="true" />        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->        <property name="timeBetweenEvictionRunsMillis" value="60000" />        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->        <property name="minEvictableIdleTimeMillis" value="25200000" />        <!-- 打开removeAbandoned功能 -->        <property name="removeAbandoned" value="true" />        <!-- 1800秒，也就是30分钟 -->        <property name="removeAbandonedTimeout" value="1800" />        <!-- 关闭abanded连接时输出错误日志 -->        <property name="logAbandoned" value="true" />        <!-- 监控数据库 -->        <!-- <property name="filters" value="stat" /> -->        <property name="filters" value="mergeStat" />    </bean>        <!-- ========================================分隔线========================================= -->        <!-- ========================================针对myBatis的配置项============================== -->    <!-- 配置sqlSessionFactory -->    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">        <!-- 实例化sqlSessionFactory时需要使用上述配置好的数据源以及SQL映射文件 -->        <property name="dataSource" ref="dataSource" />        <!-- 自动扫描me/mapping/目录下的所有SQL映射的xml文件, 省掉Configuration.xml里的手工配置        value="classpath:me/mapping/*.xml"指的是classpath(类路径)下me.mapping包中的所有xml文件        UserMapper.xml位于me.mapping包下，这样UserMapper.xml就可以被自动扫描         -->        <property name="mapperLocations" value="classpath:me/mapping/*.xml" />    </bean>    <!-- 配置扫描器 -->    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">        <!-- 扫描me.dao这个包以及它的子包下的所有映射接口类 -->        <property name="basePackage" value="me.dao" />        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />    </bean>        <!-- ========================================分隔线========================================= -->    <!-- 配置Spring的事务管理器 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <property name="dataSource" ref="dataSource" />    </bean>    <!-- 注解方式配置事物 -->    <!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->    <!-- 拦截器方式配置事物 -->    <tx:advice id="transactionAdvice" transaction-manager="transactionManager">        <tx:attributes>            <tx:method name="add*" propagation="REQUIRED" />            <tx:method name="append*" propagation="REQUIRED" />            <tx:method name="insert*" propagation="REQUIRED" />            <tx:method name="save*" propagation="REQUIRED" />            <tx:method name="update*" propagation="REQUIRED" />            <tx:method name="modify*" propagation="REQUIRED" />            <tx:method name="edit*" propagation="REQUIRED" />            <tx:method name="delete*" propagation="REQUIRED" />            <tx:method name="remove*" propagation="REQUIRED" />            <tx:method name="repair" propagation="REQUIRED" />            <tx:method name="delAndRepair" propagation="REQUIRED" />            <tx:method name="get*" propagation="SUPPORTS" />            <tx:method name="find*" propagation="SUPPORTS" />            <tx:method name="load*" propagation="SUPPORTS" />            <tx:method name="search*" propagation="SUPPORTS" />            <tx:method name="datagrid*" propagation="SUPPORTS" />            <tx:method name="*" propagation="SUPPORTS" />        </tx:attributes>    </tx:advice>    <aop:config>        <aop:pointcut id="transactionPointcut" expression="execution(* me.service..*Impl.*(..))" />        <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />    </aop:config>    <!-- 配置druid监控spring jdbc -->    <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">    </bean>    <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">        <property name="patterns">            <list>                <value>me.service.*</value>            </list>        </property>    </bean>    <aop:config>        <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />    </aop:config></beans>

User实体

package me.domain;import java.util.Date;public class User {    private String userId;    private String userName;    private Date userBirthday;    private Double userSalary;    public String getUserId() {        return userId;    }    public void setUserId(String userId) {        this.userId = userId == null ? null : userId.trim();    }    public String getUserName() {        return userName;    }    public void setUserName(String userName) {        this.userName = userName == null ? null : userName.trim();    }    public Date getUserBirthday() {        return userBirthday;    }    public void setUserBirthday(Date userBirthday) {        this.userBirthday = userBirthday;    }    public Double getUserSalary() {        return userSalary;    }    public void setUserSalary(Double userSalary) {        this.userSalary = userSalary;    }}

userMapper.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="me.dao.UserMapper" >  <resultMap id="BaseResultMap" type="me.domain.User" >    <id column="user_id" property="userId" jdbcType="CHAR" />    <result column="user_name" property="userName" jdbcType="VARCHAR" />    <result column="user_birthday" property="userBirthday" jdbcType="DATE" />    <result column="user_salary" property="userSalary" jdbcType="DOUBLE" />  </resultMap>  <sql id="Base_Column_List" >    user_id, user_name, user_birthday, user_salary  </sql>  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" >    select     <include refid="Base_Column_List" />    from t_user    where user_id = #{userId,jdbcType=CHAR}  </select>  <delete id="deleteByPrimaryKey" parameterType="java.lang.String" >    delete from t_user    where user_id = #{userId,jdbcType=CHAR}  </delete>  <insert id="insert" parameterType="me.domain.User" >    insert into t_user (user_id, user_name, user_birthday,       user_salary)    values (#{userId,jdbcType=CHAR}, #{userName,jdbcType=VARCHAR}, #{userBirthday,jdbcType=DATE},       #{userSalary,jdbcType=DOUBLE})  </insert>  <insert id="insertSelective" parameterType="me.domain.User" >    insert into t_user    <trim prefix="(" suffix=")" suffixOverrides="," >      <if test="userId != null" >        user_id,      </if>      <if test="userName != null" >        user_name,      </if>      <if test="userBirthday != null" >        user_birthday,      </if>      <if test="userSalary != null" >        user_salary,      </if>    </trim>    <trim prefix="values (" suffix=")" suffixOverrides="," >      <if test="userId != null" >        #{userId,jdbcType=CHAR},      </if>      <if test="userName != null" >        #{userName,jdbcType=VARCHAR},      </if>      <if test="userBirthday != null" >        #{userBirthday,jdbcType=DATE},      </if>      <if test="userSalary != null" >        #{userSalary,jdbcType=DOUBLE},      </if>    </trim>  </insert>  <update id="updateByPrimaryKeySelective" parameterType="me.domain.User" >    update t_user    <set >      <if test="userName != null" >        user_name = #{userName,jdbcType=VARCHAR},      </if>      <if test="userBirthday != null" >        user_birthday = #{userBirthday,jdbcType=DATE},      </if>      <if test="userSalary != null" >        user_salary = #{userSalary,jdbcType=DOUBLE},      </if>    </set>    where user_id = #{userId,jdbcType=CHAR}  </update>  <update id="updateByPrimaryKey" parameterType="me.domain.User" >    update t_user    set user_name = #{userName,jdbcType=VARCHAR},      user_birthday = #{userBirthday,jdbcType=DATE},      user_salary = #{userSalary,jdbcType=DOUBLE}    where user_id = #{userId,jdbcType=CHAR}  </update>  <!-- ==============以下内容是根据自身业务扩展的内容======================= -->      <!-- select标签的id属性与UserMapper接口中定义的getAllUser方法要一模一样 -->    <select id="getAllUser" resultMap="BaseResultMap">        select user_id, user_name, user_birthday, user_salary from t_user    </select></mapper>

Dao: UserMapper.java

package me.dao;import me.domain.User;import java.util.List;public interface UserMapper {    int deleteByPrimaryKey(String userId);    int insert(User record);    int insertSelective(User record);    User selectByPrimaryKey(String userId);    int updateByPrimaryKeySelective(User record);    int updateByPrimaryKey(User record);        /**获取所有用户信息     * @return List<User>     */    List<User> getAllUser();}

service 接口

package me.service;import java.util.List;import me.domain.User;public interface UserServiceI {    /**     * 添加用户     * @param user     */    void addUser(User user);        /**     * 根据用户id获取用户     * @param userId     * @return     */    User getUserById(String userId);        /**获取所有用户信息     * @return List<User>     */    List<User> getAllUser();}

service实现类

package me.service.impl;import java.util.List;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.stereotype.Service;import me.dao.UserMapper;import me.domain.User;import me.service.UserServiceI;/** *  * 使用@Service注解将UserServiceImpl类标注为一个service * service的id是userService */@Service("userService")public class UserServiceImpl implements UserServiceI {    /**     * 使用@Autowired注解标注userMapper变量，     * 当需要使用UserMapper时，Spring就会自动注入UserMapper     */    @Autowired    private UserMapper userMapper;//注入daopublic void addUser(User user) {userMapper.insert(user);}public User getUserById(String userId) {// TODO Auto-generated method stubreturn userMapper.selectByPrimaryKey(userId);}  /**获取所有用户信息     * @return List<User>     */   public List<User> getAllUser(){    return userMapper.getAllUser();    }   }

单元测试

package me.test;import java.util.Date;import java.util.UUID;import org.junit.Before;import org.junit.Test;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;import me.domain.User;import me.service.UserServiceI;public class MyBatisTest {    private UserServiceI userService;        /**     * 这个before方法在所有的测试方法之前执行，并且只执行一次     * 所有做Junit单元测试时一些初始化工作可以在这个方法里面进行     * 比如在before方法里面初始化ApplicationContext和userService     */    @Before    public void before(){        //使用"spring.xml"和"spring-mybatis.xml"这两个配置文件创建Spring上下文        ApplicationContext ac = new ClassPathXmlApplicationContext(new String[]{"spring.xml","spring-mybatis.xml"});        //从Spring容器中根据bean的id取出我们要使用的userService对象        userService = (UserServiceI) ac.getBean("userService");    }        @Test    public void testAddUser(){        //ApplicationContext ac = new ClassPathXmlApplicationContext(new String[]{"spring.xml","spring-mybatis.xml"});        //UserServiceI userService = (UserServiceI) ac.getBean("userService");        User user = new User();        user.setUserId(UUID.randomUUID().toString().replaceAll("-", ""));        user.setUserName("qww");        user.setUserBirthday(new Date());        user.setUserSalary(10000D);        userService.addUser(user);    }        @Test    public void testfind(){    //ApplicationContext ac = new ClassPathXmlApplicationContext(new String[]{"spring.xml","spring-mybatis.xml"});    //UserServiceI userService = (UserServiceI) ac.getBean("userService");        User user =userService.getUserById("344e39bd57414e54b488848c7b9c56c8");    System.out.println(user);    }    }

使用Spring提供的Junit测试框架进行单元测试

package me.test;import java.util.Date;import java.util.UUID;import org.junit.Test;import org.junit.runner.RunWith;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.test.context.ContextConfiguration;import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;import me.domain.User;import me.service.UserServiceI;@RunWith(SpringJUnit4ClassRunner.class)//配置了@@ContextConfiguration注解并使用该注解的locations属性指明spring配置文件@ContextConfiguration(locations={"classpath:spring.xml", "classpath:spring-mybatis.xml" })public class MyBatisTestBySpringTestFramework {//注入userService    @Autowired    private UserServiceI userService;        @Test    public void testAddUser(){        User user = new User();        user.setUserId(UUID.randomUUID().toString().replaceAll("-", ""));        user.setUserName("lllc");        user.setUserBirthday(new Date());        user.setUserSalary(10000D);        userService.addUser(user);    }        @Test    public void testGetUserById(){        String userId = "c9927ecad41c43c993a60d4e0a2481e9";        User user = userService.getUserById(userId);        System.out.println(user.getUserName());    }}

web测试

web.xml

<?xml version="1.0" encoding="UTF-8"?><web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee                      http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"    version="3.0">    <welcome-file-list>        <welcome-file>index.jsp</welcome-file>    </welcome-file-list>    <listener>        <description>Spring监听器</description>        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>    </listener>    <!-- ContextLoaderListener初始化Spring上下文时需要使用到的contextConfigLocation参数 -->    <context-param>        <param-name>contextConfigLocation</param-name>        <!-- 配置spring.xml和spring-mybatis.xml这两个配置文件的位置，固定写法 -->        <param-value>classpath:spring.xml,classpath:spring-mybatis.xml</param-value>    </context-param></web-app>

<pre name="code" class="html">UserServlet

package me.controller;import java.io.IOException;import java.util.List;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 org.springframework.context.ApplicationContext;import org.springframework.web.context.support.WebApplicationContextUtils;import me.domain.User;import me.service.UserServiceI;/** * * @WebServlet是Servlet3.0提供的注解，目的是将一个继承了HttpServlet类的普通java类标注为一个Servlet * UserServlet使用了@WebServlet标注之后，就不需要在web.xml中配置了 */@WebServlet("/UserServlet")public class UserServlet extends HttpServlet {    //处理业务逻辑的userService    private UserServiceI userService;        public void doGet(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        //获取所有的用户信息        List<User> lstUsers = userService.getAllUser();        request.setAttribute("lstUsers", lstUsers);        request.getRequestDispatcher("/index.jsp").forward(request, response);    }        public void doPost(HttpServletRequest request, HttpServletResponse response)            throws ServletException, IOException {        this.doGet(request, response);    }    public void init() throws ServletException {        //在Servlet初始化时获取Spring上下文对象(ApplicationContext)        ApplicationContext ac = WebApplicationContextUtils.getWebApplicationContext(this.getServletContext());        //从ApplicationContext中获取userService        userService = (UserServiceI) ac.getBean("userService");    }}

编辑index.jsp页面，用于展示查询到的用户信息，内容如下

<%@ page language="java" pageEncoding="UTF-8"%><%--引入JSTL核心标签库 --%><%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%><!DOCTYPE html><html>    <head>        <title>显示用户信息</title>        <style type="text/css">            table,td{                border: 1px solid;                border-collapse: collapse;            }        </style>    </head>    <body>        <table>            <tr>                <td>用户ID</td>                <td>用户名</td>                <td>用户生日</td>                <td>工资</td>            </tr>            <%--遍历lstUsers集合中的User对象 --%>            <c:forEach var="user" items="${lstUsers}">                <tr>                    <td>${user.userId}</td>                    <td>${user.userName}</td>                    <td>${user.userBirthday}</td>                    <td>${user.userSalary}</td>                </tr>            </c:forEach>        </table>    </body></html>

　输入地址：http://localhost:8080/spring4-mybatis3/UserServlet 访问UserServlet

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