spring-mybatis 事物配置 execution表达式含义

1、

    <!-- 扫描service包下所有使用注解的类型 -->
    <context:component-scan base-package="com.yongjun.edu.service" />

    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <!-- 注入数据库连接池 -->
        <property name="dataSource" ref="dataSource" />
    </bean>
    <!--配置事务的通知：(事务的增强)-->
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <!--
                propagation     :事务传播行为
                isolation       :事务的隔离级别
                read-only       :只读
                rollback-for    :发生哪些异常回滚
                no-rollback-for :发生哪些异常不回滚
                timeout         :过期信息
            -->
            <tx:method name="store*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="delete*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="add*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="save*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="update*" propagation="REQUIRED" read-only="false"/>
            <tx:method name="load*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="get*" propagation="REQUIRED" read-only="true"/>
            <tx:method name="*" propagation="REQUIRED" read-only="true" rollback-for="Exception"/>
        </tx:attributes>
    </tx:advice>

    <!--配置切面-->
    <aop:config>
        <!--配置切入点-->
        <aop:pointcut id="doService" expression="execution(* com.yongjun.edu.service..*.*(..))"/>
        <!--配置切面-->
        <aop:advisor advice-ref="txAdvice" pointcut-ref="doService"/>
    </aop:config>

execution(* com.yongjun.edu.service..*.*(..)) 含义如下：