20.基于xml的声明式事务

注意：基于xml实现的声明式事务，必须引入aspectJ的依赖

<dependency>
<groupId>org.springframeworkgroupId>
<artifactId>spring-aspectsartifactId>
<version>5.3.23version>
dependency>

下面这些不需要修改

    
    <context:component-scan base-package="com.atguigu.spring">context:component-scan>
 
    
    <context:property-placeholder location="classpath:jdbc.properties" />
    
    <bean id="druidDataSource" class="com.alibaba.druid.pool.DruidDataSource">
        <property name="url" value="${jdbc.url}"/>
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="username" value="${jdbc.us