学步园

1：文档上的例子

<!-- from the file 'context.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: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-2.5.xsd
     http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
     http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd">
  
  <!-- this is the service object that we want to make transactional -->
  <bean id="fooService" class="x.y.service.DefaultFooService"/>

  <!-- the transactional advice (what 'happens'; see the <aop:advisor/> bean below) -->
  <tx:advice id="txAdvice" transaction-manager="txManager">  <!--定义advice，manager为txManager-->
  <!-- the transactional semantics... -->
  <tx:attributes>
    <!-- all methods starting with 'get' are read-only -->
    <tx:method name="get*" read-only="true"/>  <!--get*的方法为只读的，没有使用到事务，系统性能得到了优化 -->
    <!-- other methods use the default transaction settings (see below) -->
    <tx:method name="*"/>  <!-- 其他的方法使用required的属性传播特性-->
  </tx:attributes>
  </tx:advice>
  
  <!-- ensure that the above transactional advice runs for any execution
    of an operation defined by the FooService interface -->
  <aop:config>  <!-- 定义一个切面，并添加一些advice-->
  <aop:pointcut id="fooServiceOperation" expression="execution(* x.y.service.FooService.*(..))"/>  
  <aop:advisor advice-ref="txAdvice" pointcut-ref="fooServiceOperation"/>  <!--为切面的方法增加一些advice-->
  </aop:config>
  
  <!-- don't forget the DataSource -->
  <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
  <property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
  <property name="url" value="jdbc:oracle:thin:@rj-t42:1521:elvis"/>
  <property name="username" value="scott"/>
  <property name="password" value="tiger"/>
  </bean>

  <!-- similarly, don't forget the PlatformTransactionManager --> <!-- 定义TransactionManager-->
  <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
  <property name="dataSource" ref="dataSource"/>
  </bean>
  
  <!-- other <bean/> definitions here -->

</beans>

2:实际应用

     总之，在项目中，我们使用XML的形式对事务进行管理，这样不用对每个方法都加@Transactional的Annotation