SpringMVC + MyBatis整合

环境：spring3.1.1+mybatis3.2.8+mybatis-spring1.2.3

0. project 目录

1. spring-resources.xml

这个文件是用来完成spring和mybatis的整合的xml。注意properties文件的读入方式。

<?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"      xmlns:context="http://www.springframework.org/schema/context"      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.xsd       http://www.springframework.org/schema/context       http://www.springframework.org/schema/context/spring-context-3.0.xsd    http://www.springframework.org/schema/aop            http://www.springframework.org/schema/aop/spring-aop-3.2.xsd" default-autowire="byName" default-lazy-init="false"><!-- 自动扫描组件，需要把controller去掉，否则影响事务管理 -->      <context:component-scan base-package="org.com.mars">          <context:exclude-filter type="regex"              expression="org.com.mars.controller.*" />      </context:component-scan><!-- 引入jdbc配置文件 -->      <context:property-placeholder location="classpath:prop/jdbc.properties" /> <!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->      <bean id="transactionManager"          class="org.springframework.jdbc.datasource.DataSourceTransactionManager">          <property name="dataSource" ref="dataSource" />      </bean>         <!-- 声明式事务管理 -->    <aop:config>          <aop:advisor pointcut="execution(* org.com.mars.service..*.*(..))"              advice-ref="myAdvice" />      </aop:config>      <tx:advice id="myAdvice" transaction-manager="transactionManager">          <tx:attributes>              <tx:method name="find*" propagation="SUPPORTS" read-only="true" />              <tx:method name="query*" propagation="SUPPORTS" read-only="true" />              <tx:method name="list*" propagation="SUPPORTS" read-only="true" />                <tx:method name="create*" propagation="REQUIRED" />              <tx:method name="save*" propagation="REQUIRED" />              <tx:method name="modify*" propagation="REQUIRED" />              <tx:method name="update*" propagation="REQUIRED" />              <tx:method name="delete*" propagation="REQUIRED" />                <tx:method name="*" propagation="SUPPORTS" read-only="true" />          </tx:attributes>      </tx:advice>          <!-- 创建SqlSessionFactory，同时指定数据源 -->      <bean id="mySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">          <property name="dataSource" ref="dataSource" />          <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->        <property name="mapperLocations" value="classpath*:maper/*.map.xml" />    </bean>         <!-- DAO接口所在包名，Spring会自动查找其下的类 -->     <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">          <property name="basePackage" value="org.com.mars.dao" />        <property name="sqlSessionFactoryBeanName" value="mySqlSessionFactory" />    </bean>        <!-- 可通过注解控制事务 -->      <tx:annotation-driven />        <!-- 数据库连接池 --><bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close"><!-- Connection Info --><property name="driverClassName" value="${jdbc.driver}" /><property name="url" value="${jdbc.url}" /><property name="username" value="${jdbc.username}" /><property name="password" value="${jdbc.password}" /><!-- Connection Pooling Info --><property name="maxActive" value="${dbcp.maxActive}" /><property name="maxIdle" value="${dbcp.maxIdle}" /><property name="defaultAutoCommit" value="false" /><!-- 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="3600000" /><!-- 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="3600000" /></bean></beans>

2. mapper.xml

该xml 如何使用配置，请参看spring-resources.xml，注意mapper.xml中 namespace的配置。

<?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="org.com.mars.dao.test.UserDao"> <!-- mapping --> <resultMap id="User_t" type="org.com.mars.pojo.test.User"> <result property="userId" column="user_id" jdbcType="VARCHAR" /> <result property="userName" column="user_name" jdbcType="VARCHAR" /> </resultMap> <sql id="columns"> user_id, user_name </sql> <!-- 根据ID查询用户信息 --> <select id="queryUserById" resultMap="User_t"> SELECT <include refid="columns" /> FROM user_t WHERE user_id = #{userId} </select></mapper>

springmvc + mybatis整合详细，及遇到的问题请参看以下资料：

参考资料：

http://www.itnose.net/detail/6074493.html

http://my.oschina.net/wangbiglei/blog/489583

http://my.oschina.net/wangbiglei/blog/489604