注解方式实现aop事务切面

2019-11-06 07:05:15

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先用接口方式 目标接口

package com.pactera.dao;public interface IUserDao { void save();}

目标类

package com.pactera.daoImpl;import org.sPRingframework.stereotype.Repository;import com.pactera.dao.IUserDao;@Repositorypublic class UserDao implements IUserDao{ @Override public void save() { System.out.println("userDao save()"); }}

切面类

package com.pactera.transaction;import org.aspectj.lang.annotation.After;import org.aspectj.lang.annotation.Aspect;import org.aspectj.lang.annotation.Before;import org.springframework.stereotype.Component;@Aspect //指定一个类为切面类@Componentpublic class Aop { @Before("execution(* com.pactera.daoImpl.UserDao.save(..))") public void before(){ System.out.println("---模拟事务开启---"); } @After("execution(* com.pactera.daoImpl.UserDao.save(..))") public void after(){ System.out.println("---模拟事务关闭---"); }}

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:p="http://www.springframework.org/schema/p" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.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.xsd">  <context:component-scan base-package="com.pactera"></context:component-scan>  <aop:aspectj-autoproxy></aop:aspectj-autoproxy></beans>

测试

@Test public void test(){ ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml"); IUserDao userDao = ac.getBean("userDao",IUserDao.class); userDao.save(); System.out.println(userDao.getClass()); }

结果这里写图片描述

测试2

@Test public void test(){ ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml"); UserDao userDao = ac.getBean("userDao",UserDao.class); userDao.save(); System.out.println(userDao.getClass()); }

这里写图片描述