在spring实现

import org.aopalliance.intercept.MethodInvocation;/** * Created by dingshuangkun on 2018/1/9. */public class GreetingAroundAdvice implements MethodInterceptor {    @Override    public Object invoke(MethodInvocation invocation) throws Throwable {        before();        Object obj =  invocation.proceed();        after();        return obj;    }    public void before(){        System.out.println("----before----");    }    public void after(){        System.out.println("----after------");    }}

    
    
        
         
         
             
                  
       
        greetingAroundAdvice
               
          
     
    

测试

public static void main(String[] arges){    ApplicationContext ac = new ClassPathXmlApplicationContext("applicationContext.xml");    Greeting greeting =(Greeting) ac.getBean("greetingProxy");    greeting.sayHello("ding");    greeting.sayNiHao("dingding");}

------before-------