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;
     }

 }