AOP应用-用事务注解解决事务管理

1、

package com.service;

import org.springframework.transaction.annotation.Isolation;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.dao.IAccountDao;
import com.dao.IStockDao;
import com.exception.BuyStockException;

public class BuyStockServiceImpl implements IBuyStockService {
private IAccountDao adao;
private IStockDao sdao;

public void setAdao(IAccountDao adao) {
	this.adao = adao;
}

public void setSdao(IStockDao sdao) {
	this.sdao = sdao;
}

@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED)
@Override
public void openAccount(String aname, double money) {
	adao.insertAccount(aname, money);
}

@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED)
@Override
public void openStock(String sname, int amount) {
	sdao.insertStock(sname, amount);
}

@Transactional(isolation = Isolation.DEFAULT, propagation = Propagation.REQUIRED, rollbackFor = BuyStockException.class)
@Override
public void buyStock(String aname, double money, String sname, int amount) throws BuyStockException{
	boolean isBuy = true;
	adao.updateAccount(aname, money, isBuy);
	if (true) {
		throw new BuyStockException("购买股票异常");
	}
	sdao.updateStock(sname, amount, isBuy);
}

}

2、

<?xml version="1.0" encoding="UTF-8"?>

<!--=====================================IOC============================================-->

<!-- 注册dataSource:myDataSource -->
<bean id="myDataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
	<property name="driverClass" value="${jdbc.driver}"/>
	<property name="jdbcUrl" value="${jdbc.url}"/>
	<property name="user" value="${jdbc.user}"/>
	<property name="password" value="${jdbc.password}"/>
</bean>
<!-- 加载jdbc.properties -->
<context:property-placeholder location="classpath:jdbc.properties"/>

<!-- 注册dao:myAccountDao -->
<bean id="myAccountDao" class="com.dao.AccountDaoImpl">
	<property name="dataSource" ref="myDataSource"/>
</bean>

<!-- 注册dao:myStockDao -->
<bean id="myStockDao" class="com.dao.StockDaoImpl">
	<property name="dataSource" ref="myDataSource"/>
</bean>

<!-- 注册service:myBuyStockService -->
<bean id="myBuyStockService" class="com.service.BuyStockServiceImpl">
	<property name="adao" ref="myAccountDao"/>
	<property name="sdao" ref="myStockDao"/>
</bean>

<!--=====================================AOP============================================-->
<!-- 注册事务管理器 -->
<bean id="myTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
	<property name="dataSource" ref="myDataSource"/>
</bean>

<!-- 注册事务注解驱动 -->
<tx:annotation-driven transaction-manager="myTransactionManager"/>