Spring转账业务_注解配置事物控制

1、beans.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-3.2.xsd
        http://www.springframework.org/schema/context 
        http://www.springframework.org/schema/context/spring-context-3.2.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-3.0.xsd">
        
    <!-- 扫描包基础目录 -->
    <context:component-scan base-package="com.wisezone"></context:component-scan>
    
    <!-- 加载properties 配置文件 -->
    <context:property-placeholder location="db.properties"/>
    
    <!-- c3p0数据源配置 -->
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="driverClass" value="${driver}"></property>
        <property name="jdbcUrl" value="${url}"></property>
        <property name="user" value="${user}"></property>
        <property name="password" value="${password}"></property>
    </bean>
    
    <!-- jdbc模板类配置 -->
    <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
        <!-- 属性名称固定 -->
        <property name="dataSource" ref="dataSource"></property> 
    </bean>
    
37     <aop:aspectj-autoproxy/>
38     
39     <!-- 事物管理器配置 -->
40     <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
41         <property name="dataSource" ref="dataSource"></property>
42     </bean>
43     
44     <tx:annotation-driven transaction-manager="txManager"/>
    
</beans>

package com.wisezone.service.impl;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Propagation;
import org.springframework.transaction.annotation.Transactional;

import com.wisezone.dao.AccountDao;
import com.wisezone.service.AccountService;

@Service
public class AccountServiceImpl implements AccountService {

    @Resource
    private AccountDao accountDao;
    
    @Override
    @Transactional(propagation=Propagation.REQUIRED)
    public int updateAccountByTranfer(int yuanAid, int muBiaoAid, double money) {
        
        int result = 0;
        int r1 = accountDao.outAccount(yuanAid, money);//出账
        int a = 1/0;
        int r2 = accountDao.inAccount(muBiaoAid, money);//入账
        
        if (r1 > 0 && r2 > 0) {
            result = 1;
        }
        
        return result;
    }

}