applicationContext.xml

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

    <!-- 扫描类包,将Spring注解的类自动转换Bean -->
    <context:component-scan base-package="com.brianway.learning.spring.helloworld.dao"/>
    <!-- 扫描service类包，应用Spring的注解配置-->
    <context:component-scan base-package="com.brianway.learning.spring.helloworld.service"/>

    <!-- 定义一个使用DBCP实现的数据源 -->
    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
          destroy-method="close"
          p:driverClassName="com.mysql.jdbc.Driver"
          p:url="jdbc:mysql://localhost:3306/sampledb?useSSL=false"
          p:username="test"
          p:password="123456"
    />

    <!-- 定义Jdbc模板Bean -->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"
          p:dataSource-ref="dataSource"/>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager"
          class="org.springframework.jdbc.datasource.DataSourceTransactionManager"
          p:dataSource-ref="dataSource"
    />

    <!-- 通过AOP配置提供事务增强，让service包下所有Bean的所有方法拥有事务 -->
    <aop:config proxy-target-class="true">
        <aop:pointcut id="serviceMethod"
                      expression="execution(* com.brianway.learning.spring.helloworld.service.*.*(..))"/>
        <aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice"/>
    </aop:config>
    <tx:advice id="txAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="*"/>
        </tx:attributes>
    </tx:advice>

</beans>