Spring-AOP注解实现

import org.aspectj.lang.annotation.After;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Before;
@Aspect//标注这个类是一个切面
public class AnnotationPointCut {
    @Before("execution(* com.peng.service.UserServiceImpl.*(..))")
    public void before(){
        System.out.println("执行前！！！！！！！！！！");
    }
    @After("execution(* com.peng.service.UserServiceImpl.*(..))")
    public void after(){
        System.out.println("执行后！！！！！！！！！！");
    }
}

<?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:aop="http://www.springframework.org/schema/aop"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd
       http://www.springframework.org/schema/aop
       http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--注册bean-->
    <bean id="userService" class="com.peng.service.UserServiceImpl"/>
    <bean id="log" class="com.peng.log.Log"/>
    <bean id="afterLog" class="com.peng.log.AfterLog"/>
    <bean id="annotationPointCut" class="com.peng.diy.AnnotationPointCut"/>
    <!--开启注解支持-->
    <aop:aspectj-autoproxy/>
</beans>

import com.peng.service.UserService;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
public class MyTest {
    public static void main(String[] args) {
        ApplicationContext classPathXmlApplicationContext = new ClassPathXmlApplicationContext("applicationContext.xml");
        //动态代理的是接口
        UserService userService = (UserService) classPathXmlApplicationContext.getBean("userService");
        userService.add();
    }
}