Spring事务xml版

最新推荐文章于 2024-01-12 22:12:25 发布

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博客展示了Spring框架下dao层和service层的代码，包含账户服务实现类及转账方法。还给出了xml配置文件，配置了数据源、事务管理器、事务通知等。最后提供了测试代码，用于测试账户转账功能，体现了Spring框架在后端开发中的应用。

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dao层

service层

package cn.itcast.day03.account;

public class AccountServiceImpl implements AccountService {

   private AccountDao ad;


   public void setAd(AccountDao ad) {
       this.ad = ad;
   }

   @Override
   public void transfer(Integer from, Integer to, double money) {
       ad.decreaceMoney(from, money);
       //int i=1/0;
       ad.increaceMoney(to, money);

   }

}

xml:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://www.springframework.org/schema/beans" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.2.xsd ">

<context:property-placeholder location="classpath:db.properties"/>


<bean name="dataSource" 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>


<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
   <property name="dataSource" ref="dataSource"></property>
</bean>


<bean name="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
   <property name="transactionManager" ref="transactionManager"></property>
</bean>


<tx:advice id="myAdvice" transaction-manager="transactionManager">
   <tx:attributes>
       <tx:method name="transfer" isolation="REPEATABLE_READ" propagation="REQUIRED" read-only="false"/>
   </tx:attributes>
</tx:advice>


<aop:config>
   
   <aop:pointcut expression="execution(* cn.itcast.day03.account.*ServiceImpl.*(..))" id="txpc"/>
   
   <aop:advisor advice-ref="myAdvice" pointcut-ref="txpc"/>
</aop:config>


<bean name="accountDao" class="cn.itcast.day03.account.AccountDaoImpl">
   <property name="dataSource" ref="dataSource"></property>
</bean>


<bean name="accountService" class="cn.itcast.day03.account.AccountServiceImpl">
   <property name="ad" ref="accountDao"></property>
</bean>
</beans>

测试：

package cn.itcast.day03.account;

import javax.annotation.Resource;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration("classpath:cn/itcast/day03/account/applicationContext.xml")
public class AccountTest {
   @Resource(name="accountService")
   private AccountService as;

@Test
   public void fun() {
       as.transfer(2, 1, 100d);
   }
}