ssm 配置事务回滚

参考：https://blog.csdn.net/Mint6/article/details/78363761

在 applicationContext.xml 中配置好了事务和数据源等必须要用到的配置之后 直接在service中加入 

@Transactional(rollbackFor=Exception.class)

就可以在service方法中发送异常后回滚数据了

<?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"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       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.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">


    <context:component-scan base-package="org.kinome">
        <context:exclude-filter type="annotation"
                                expression="org.springframework.stereotype.Controller"></context:exclude-filter>
    </context:component-scan>


    <context:property-placeholder location="classpath:dbconfig.properties"></context:property-placeholder>
    <bean id="pooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
        <property name="driverClass" value="${jdbc.driverClass}"></property>
        <property name="user" value="${jdbc.user}"></property>
        <property name="password" value="${jdbc.password}"></property>
    </bean>


    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="configLocation" value="classpath:mybatis-config.xml"></property>
        <property name="dataSource" ref="pooledDataSource"></property>
        <property name="mapperLocations" value="classpath:mapper/*.xml"></property>
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="org.kinome.rm.dao"></property>
    </bean>
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionTemplate">
        <constructor-arg name="sqlSessionFactory" ref="sqlSessionFactory"></constructor-arg>
        <constructor-arg name="executorType" value="BATCH"></constructor-arg>
    </bean>


    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="pooledDataSource"></property>
    </bean>
    <aop:config>
        <aop:pointcut id="txPoint" expression="execution(* org.kinome.rm.service..*(..))"></aop:pointcut>
        <aop:advisor advice-ref="txAdvice" pointcut-ref="txPoint"></aop:advisor>
    </aop:config>
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*" rollback-for="Exception"/><!--默认回滚机制是RuntimeException-->
        </tx:attributes>
    </tx:advice>

</beans>