Spring Mvc那点事---(34)Spring事务基于AspectJ实现

   Spring事务也可以通过AspectJ切面来实现，通过配置切点和事务通知来实现控制事务。下面我们看看使用AspectJ来怎么控制事务。

CREATE TABLE `useraccount` (  `id` int(11) NOT NULL AUTO_INCREMENT,  `username` varchar(50) DEFAULT NULL,  `money` double DEFAULT '0',  PRIMARY KEY (`id`)) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8

引入JAR包

<dependencies>    <dependency><groupId>org.springframework</groupId><artifactId>spring-context</artifactId><version>4.2.5.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/com.mchange/c3p0 --><dependency>    <groupId>com.mchange</groupId>    <artifactId>c3p0</artifactId>    <version>0.9.5</version></dependency><!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --><dependency>    <groupId>mysql</groupId>    <artifactId>mysql-connector-java</artifactId>    <version>5.1.36</version></dependency><!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --><dependency>    <groupId>org.springframework</groupId>    <artifactId>spring-jdbc</artifactId>    <version>4.2.2.RELEASE</version></dependency><!-- https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api --><dependency>    <groupId>javax.annotation</groupId>    <artifactId>javax.annotation-api</artifactId>    <version>1.2</version></dependency><!-- https://mvnrepository.com/artifact/org.aspectj/aspectjweaver --><dependency>    <groupId>org.aspectj</groupId>    <artifactId>aspectjweaver</artifactId>    <version>1.8.5</version></dependency>    <dependency>      <groupId>junit</groupId>      <artifactId>junit</artifactId>      <version>3.8.1</version>      <scope>test</scope>    </dependency>      </dependencies>

applicationContext.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:p="http://www.springframework.org/schema/p"    xmlns:cache="http://www.springframework.org/schema/cache" xmlns:repo="http://www.springframework.org/schema/data/repository"    xmlns:tx="http://www.springframework.org/schema/tx" xmlns:jpa="http://www.springframework.org/schema/data/jpa"    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd        http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa-1.3.xsd        http://www.springframework.org/schema/data/repository http://www.springframework.org/schema/data/repository/spring-repository-1.7.xsd        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd            http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd "    default-lazy-init="true">    <description>Spring配置</description>    <context:annotation-config /><!-- 引入数据源配置文件 --><context:property-placeholder location="classpath:jdbc.properties"/>    <!-- 连接池 -->  <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">   <property name="driverClass" value="${jdbc.driverClass}"></property>    <property name="jdbcUrl" value="${jdbc.url}"></property>     <property name="user" value="${jdbc.username}"></property>      <property name="password" value="${jdbc.password}"></property>  </bean>      <!-- 持久层 -->  <bean id="userAccountDao" class="com.trans.trans03.UserAccountDao">       <property name="dataSource" ref="dataSource"></property>  </bean>    <bean id="userAccoutService" class="com.trans.trans03.UserAccoutService">  </bean>    <!-- 配置事务管理其 -->    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">        <!-- 注入数据连接池 -->        <property name="dataSource" ref="dataSource"></property>  </bean>    <!-- 配置事务通知 -->  <tx:advice id="advice" transaction-manager="transactionManager">   <tx:attributes>     <!-- 设置事务方法 -->     <tx:method name="UserTransferMoney" propagation="REQUIRED"/>   </tx:attributes>  </tx:advice>    <!-- 配置切面 -->  <aop:config>    <aop:pointcut expression="execution(* com.trans.trans03.IUserAccoutService+.*(..) )" id="pointcut"/>    <aop:advisor advice-ref="advice" pointcut-ref="pointcut"/>  </aop:config> </beans>

持久层

package com.trans.trans03;public interface IUserAccountDao {//转出账户public void TransferOut(String user,double money);//转入账户public void TransferIn(String user,double money);}

package com.trans.trans03;import org.springframework.jdbc.core.support.JdbcDaoSupport;public class UserAccountDao extends JdbcDaoSupport implements IUserAccountDao {public void TransferOut(String user, double money) {// TODO Auto-generated method stubString sql="UPDATE `useraccount` SET money=money-? WHERE username=?";this.getJdbcTemplate().update(sql, money,user);}public void TransferIn(String user, double money) {// TODO Auto-generated method stubString sql="UPDATE `useraccount` SET money=money+? WHERE username=?";this.getJdbcTemplate().update(sql, money,user);}}

业务层

package com.trans.trans03;public interface IUserAccoutService {//fromAccount来源账户  toAccount目标账户，money金额public void UserTransferMoney(String fromAccount,String toAccount,double money);}

package com.trans.trans03;import javax.annotation.Resource;import org.springframework.transaction.TransactionStatus;import org.springframework.transaction.support.TransactionCallback;import org.springframework.transaction.support.TransactionCallbackWithoutResult;import org.springframework.transaction.support.TransactionTemplate;public class UserAccoutService implements IUserAccoutService {@Resource(name="userAccountDao")private IUserAccountDao userAccountDao;  public void UserTransferMoney(String fromAccount,String toAccount, double money) {            //  org.springframework.transaction.TransactionDefinition.ISOLATION_REPEATABLE_READuserAccountDao.TransferOut(fromAccount, money);//转出账户int m=5/0; //出现异常userAccountDao.TransferIn(toAccount, money);//转入账户}}

开始转账

package com.trans.trans03;import org.springframework.context.ApplicationContext;import org.springframework.context.support.ClassPathXmlApplicationContext;/** * Hello world! * */public class App {    public static void main( String[] args )    {    ApplicationContext context = new ClassPathXmlApplicationContext("classpath:applicationContext.xml");         //获取代理类    IUserAccoutService service=(IUserAccoutService)context.getBean("userAccoutService");      service.UserTransferMoney("001", "002", 100);    }}

demo下载

http://download.csdn.net/detail/zx13525079024/9590753