spring 基于XML和注解的两种事务配置方式

<?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/tx 
           http://www.springframework.org/schema/tx/spring-tx-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">
    <!-- 用于注解 -->       
  <context:annotation-config/>
  
  <!-- 方式一：基于注解声明事务：如果事务采用注解方式，就用该句 -->
  <!--tx:annotation-driven transaction-manager="transactionManager"/-->
  
   <!-- 配置数据源 -->
  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
      <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
      <property name="url" value="jdbc:oracle:thin:@127.0.0.1:1521:orcl"/>
      <property name="username" value="lesson"/>
      <property name="password" value="lesson"/>
  </bean>
   <!-- 实例化sessionFactory -->
  <bean id="sessionFactory" class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
      <property name="dataSource" ref="dataSource"/>
      <property name="configLocations">
            <list>
              <value>classpath:hibernate.cfg.xml</value>
            </list>
        </property>
  </bean>
   <!-- 配置事务管理 -->
  <bean id="transactionManager" class="org.springframework.orm.hibernate4.HibernateTransactionManager">
         <property name="sessionFactory" ref="sessionFactory"/>
   </bean>
  
   <!-- 方式二：基于xml的事务配置  开始 -->
   <aop:config proxy-target-class="true">
   <!-- expression(*)执行的实现类  -->
       <aop:pointcut id="serviceMethods" expression="execution(* com.spring.jdbc.service.impl.UserServiceImpl.*(..))"/>
       <aop:advisor advice-ref="txAdvice" pointcut-ref="serviceMethods"/>
   </aop:config>
   <tx:advice id="txAdvice" transaction-manager="transactionManager">
       <tx:attributes>
           <tx:method name="insert*" propagation="REQUIRED"/>
           <tx:method name="get*" propagation="SUPPORTS"/>
           <tx:method name="*" propagation="SUPPORTS" read-only="true"/>
       </tx:attributes>
   </tx:advice>
   <!-- 基于xml的事务配置  结束 -->
   
  <bean id="userDao" class="com.spring.jdbc.dao.impl.UserDaoImpl"></bean>
  <bean id="userService" class="com.spring.jdbc.service.impl.UserServiceImpl"></bean>

</beans>