spring3.x事務管理 annotation

1、配置文件

<?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:ctx="http://www.springframework.org/schema/context"
	xmlns:util="http://www.springframework.org/schema/util" xmlns:mvc="http://www.springframework.org/schema/mvc"
	xmlns:tx="http://www.springframework.org/schema/tx" xmlns:p="http://www.springframework.org/schema/p"
	xmlns:task="http://www.springframework.org/schema/task"
	default-autowire="byName"
	xsi:schemaLocation="
		   http://www.springframework.org/schema/tx 
           http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
           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/util http://www.springframework.org/schema/util/spring-util.xsd
           http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
           http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">

	<ctx:component-scan base-package="com.**.gmessage">
		<ctx:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
	</ctx:component-scan>
	<ctx:annotation-config />


	<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
			p:driverClassName="com.mysql.jdbc.Driver" p:url="jdbc:mysql://127.0.0.1:3306/db?tinyInt1isBit=false"
			p:username="root" p:password="111111" init-method="createDataSource" p:validationQuery="SELECT NOW() FROM DUAL"
			destroy-method="close" />
	<bean id="sessionFactory"
		class="org.springframework.orm.hibernate4.LocalSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<property name="packagesToScan" value="com.gbits.gmessage" />
		<property name="hibernateProperties">
			<props>
				<prop key="hibernate.dialect">org.hibernate.dialect.MySQL5InnoDBDialect</prop>
				<prop key="hibernate.show_sql">true</prop>
				<prop key="hibernate.format_sql">true</prop>
				<prop key="hibernate.hbm2ddl.auto">update</prop>
				<prop key="hibernate.autoReconnect">true</prop>
				<prop key="jdbc.use_scrollable_resultset">false</prop>
			</props>
		</property>
	</bean>

	<bean id="transactionManager"
		class="org.springframework.orm.hibernate4.HibernateTransactionManager">
		<property name="sessionFactory" ref="sessionFactory" />
	</bean>
	<tx:annotation-driven transaction-manager="transactionManager" />
</beans>

2、service註解

@Service("messageService")
@Transactional(rollbackFor=Exception.class, propagation=Propagation.REQUIRED)