MyBatis-Spring

Mybatis-spring 用于帮助你将 MyBatis 代码无缝地整合到 Spring 中。
Spring 将会加载必要的 MyBatis 工厂类和 session 类
提供一个简单的方式来注入 MyBatis 数据映射器和 SqlSession 到业务层的 bean 中。
方便集成spring事务
翻译 MyBatis 的异常到 Spring 的 DataAccessException 异常(数据访问异常)中。

添加依赖 

    <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>2.0.0</version>
    </dependency>

配置SqlSessionFactoryBean
配置MapperScannerConfigurer
配置事务

<?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:c="http://www.springframework.org/schema/c"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:cache="http://www.springframework.org/schema/cache" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:redisson="http://redisson.org/schema/redisson" xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
                        http://www.springframework.org/schema/beans/spring-beans.xsd
                        http://www.springframework.org/schema/context 
                        http://www.springframework.org/schema/context/spring-context-4.3.xsd
                        http://www.springframework.org/schema/cache
                        http://www.springframework.org/schema/cache/spring-cache.xsd
                        http://www.springframework.org/schema/tx 
                          http://www.springframework.org/schema/tx/spring-tx-3.2.xsd
                          http://redisson.org/schema/redisson
                          http://redisson.org/schema/redisson/redisson.xsd
                          http://www.springframework.org/schema/aop
                        http://www.springframework.org/schema/aop/spring-aop-4.2.xsd">



    <context:property-placeholder location="classpath:db.properties"
        ignore-unresolvable="true" />

    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <!-- 基本属性 url、user、password -->
        <property name="driverClassName" value="${jdbc_driver}" />
        <property name="url" value="${jdbc_url}" />
        <property name="username" value="${jdbc_username}" />
        <property name="password" value="${jdbc_password}" />

        <!-- 配置初始化大小、最小、最大 -->
        <property name="initialSize" value="1" />
        <property name="minIdle" value="1" />
        <property name="maxActive" value="20" />

        <!-- 配置获取连接等待超时的时间 -->
        <property name="maxWait" value="60000" />

        <!-- 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="300000" />

        <property name="validationQuery" value="SELECT 'x'" />
        <property name="testWhileIdle" value="true" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />

        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->
        <property name="poolPreparedStatements" value="true" />
        <property name="maxPoolPreparedStatementPerConnectionSize"
            value="20" />
        <!-- 配置监控统计拦截的filters -->
        <property name="filters" value="stat" />
    </bean>


    <!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <property name="typeAliasesPackage" value="com.enjoylearning.mybatis.entity" />
        <property name="mapperLocations" value="classpath*:sqlmapper/*.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="com.enjoylearning.mybatis.mapper" />
    </bean>



    <!-- (事务管理)transaction manager -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
        <qualifier value="transactionManager" />
    </bean>

    <tx:annotation-driven transaction-manager="transactionManager" />


    <context:component-scan base-package="com.*">
    </context:component-scan>

</beans>