java - datasource.xml配置文件求解

Question

配置文件如下：

<?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-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-3.0.xsd
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"
    default-autowire="byName">
    <bean id="dataSource" class="com.taobao.tddl.jdbc.group.TGroupDataSource" init-method="init">
        <property name="appName" value="IDCM_APP"/>
        <property name="dbGroupKey" value="IDCM_GROUP"/>
    </bean>
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
                <property name="mapperLocations" value="classpath*:com/**/dal/**/*Mapper*.xml" /> 
       <property name="dataSource" ref="dataSource" />
        <property name="typeAliasesPackage" value="com.alibaba.***.dal" />
    </bean>
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="annotationClass" value="javax.annotation.Resource"></property>
        <property name="basePackage" value="com.alibaba.***.dal.***.mapper,com.alibaba.***.dal.***.***.mapper" />
    </bean>
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    </bean>
    <tx:annotation-driven transaction-manager="transactionManager" />
    <context:annotation-config />    
        <tx:advice id="defaultTxAdvice">
        <tx:attributes>
            <tx:method name="*" rollback-for="Exception" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="ao_bo"
            expression="(execution(* *..*BoImpl.*(..))) or ( execution(* *..*AoImpl.*(..)) and ( not execution(* *..*AoImpl.mtx_*(..)) ) )" />
        <aop:advisor pointcut-ref="ao_bo" advice-ref="defaultTxAdvice" />
    </aop:config>
    <context:component-scan base-package="com.alibaba.tboss.biz" />
</beans>

对上述配置文件的疑问点：

<bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
    </bean>
    
    <tx:annotation-driven transaction-manager="transactionManager" />

    <context:annotation-config />    
        <tx:advice id="defaultTxAdvice">
        <tx:attributes>
            <tx:method name="*" rollback-for="Exception" />
        </tx:attributes>
    </tx:advice>

    <aop:config>
        <aop:pointcut id="ao_bo"
            expression="(execution(* *..*BoImpl.*(..))) or ( execution(* *..*AoImpl.*(..)) and ( not execution(* *..*AoImpl.mtx_*(..)) ) )" />
        <aop:advisor pointcut-ref="ao_bo" advice-ref="defaultTxAdvice" />
    </aop:config>

1.transactionManager这个配置了事务管理器，其中<aop:config> 这个标签中的配置，将boImpl.java中的每个方法封装成一个事务，如果有异常抛出，会执行事务的回滚，具体的关于这方面的知识，在哪儿可以找到？

Answer 1

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