Spring事务注解(掌握)

<?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"
       xmlns:context="http://www.springframework.org/schema/context"
       xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- bean definitions here -->
	<!-- 1.引入配置文件 -->
	<context:property-placeholder location="classpath:jdbc.properties"/>
	<!-- 2.配置C3P0连接池 -->
	<bean id="comboPooledDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
		<property name="driverClass" value="${jdbc.driverClass}"></property>
		<property name="jdbcUrl" value="${jdbc.jdbcUrl}"></property>
		<property name="user" value="${jdbc.user}"></property>
		<property name="password" value="${jdbc.password}"></property>
	</bean>
	<!-- 3.配置事务管理器 (吧连接池放入事务管理器中)-->
	<bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
		<property name="dataSource" ref="comboPooledDataSource"></property>
	</bean>
	<!-- 4.开启注解事务 -->
	<tx:annotation-driven transaction-manager="dataSourceTransactionManager"/>
	
	<!-- 5.配置DAO层实例化对象,并且传入连接池供父类引用 -->
	<bean id="accountDao" class="com.mickeymouse.dao.impl.AccountDaoImpl">
		<property name="dataSource" ref="comboPooledDataSource"></property>
	</bean>
	<!-- 6.配置service层 -->
	<bean id="accountService" class="com.mickeymouse.service.impl.AccountServiceImpl">
		<!-- 属性注入  -->
		<property name="dao" ref="accountDao"></property>
	</bean>
</beans>

package com.mickeymouse.service.impl;
import org.springframework.transaction.TransactionStatus;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.transaction.support.TransactionCallback;
import org.springframework.transaction.support.TransactionCallbackWithoutResult;
import org.springframework.transaction.support.TransactionTemplate;
import com.mickeymouse.dao.AccountDao;
import com.mickeymouse.service.AccountService;
@SuppressWarnings("all")
public class AccountServiceImpl implements AccountService{
	private AccountDao dao;
	
	public void setDao(AccountDao dao) {
		this.dao = dao;
	}
	
	/**
	 * 转账汇款
	 */
	@Transactional
	public void transfer(final String deletename, final String addname, final int money) {
		
				dao.addmoney(addname, money);
				//int i = 1/0;//模拟断电
				dao.deletemoney(deletename, money);
	
	}
}