Spring声明式事物管理（一）

声明式事物管理的方法之一：是代理某个业务，使其要么同时失败，要么同时成功。

主要先看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: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/aop  
http://www.springframework.org/schema/aop/spring-aop.xsd  
http://www.springframework.org/schema/tx  
http://www.springframework.org/schema/tx/spring-tx.xsd">  
	
	<!--引入外部属性文件-->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	
	<!--	配置c3p0连接池-->
	<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="jdbcUrl" value="${jdbc.url}"></property> 
		<property name="user" value="${jdbc.username}"></property>
		<property name="password" value="${jdbc.password}"></property>
		
	</bean>
	<!--	配置业务层-->
	<bean id="accountService" class="transactiondemo.AccountServiceImpl" >
		
		<property name="accountDAO" ref="accountDAO"/>
		
	</bean>
	
	<!--	配置DAO层-->
	<bean id="accountDAO" class="transactiondemo.AccountDAOImpl">
	<!--	注入连接池-->
		<property name="dataSource" ref="dataSource"/>
	</bean>
	
	<!-- 事物管理	-->
	
	<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="dataSource"></property>
	</bean>
	<!--	配置业务层的代理		-->
	<bean id="accountServiceProxy" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">
	
		<!--	配置目标对象		-->
		<property name="target" ref="accountService"></property>
		<!--	注入事物管理器		-->
		<property name="transactionManager" ref="transactionManager"></property>
		<!--	注入事物属性		-->
		<property name="transactionAttributes">
		<!--	prop的格式：
			*PROPAGAION ：传播行为
			*ISOLATION :隔离等级
			*ReadOnly :只读
			*-Exception :发生该异常回滚
			*+Exception :发生该异常不回滚
		-->
			<props>
				<prop key="transfer">PROPAGATION_REQUIRED</prop>
			</props>
		</property>
		
	</bean>

	
	
</beans>  

接下来就是注入的时候改变一下了。

//	@Resource(name="accountService")
	@Resource(name="accountServiceProxy")
	private AccountService accountService;