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 ">
<!-- 指定Spring读取db.properties配置文件导入数据库链接信息 -->
<context:property-placeholder location="classpath:db.properties"/><!-- 将连接池放入spring容器 -->
<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>
<!-- 配置事务核心管理器 ，封装了所有事务操作，依赖于连接池-->
<bean name="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean><!-- 事务模板对象，依赖于核心事务管理器 -->
<bean name="transactionTemplate" class="org.springframework.transaction.support.TransactionTemplate">
<property name="transactionManager" ref="transactionManager"></property>
</bean><!-- 配置事务通知 -->
<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>
<!-- 配置织入 -->
<aop:config>
<!-- 切点 -->
<aop:pointcut expression="execution(* cn.itcast.day03.account.*ServiceImpl.*(..))" id="txpc"/>
<!-- 切面 -->
<aop:advisor advice-ref="myAdvice" pointcut-ref="txpc"/>
</aop:config>
<!-- Dao -->
<bean name="accountDao" class="cn.itcast.day03.account.AccountDaoImpl">
<property name="dataSource" ref="dataSource"></property>
</bean><!-- service -->
<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);
}
}