代理模式小例子

package com.gsd.proxy.change3; import java.lang.reflect.InvocationHandler; import java.lang.reflect.Method; public class MyHandler implements InvocationHandler{ private RealSubject realSubject; public void setRealSubject(RealSubject realSubject) { this.realSubject = realSubject; } public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { Object result; daze(); result=method.invoke(realSubject, args); give(); return result; } public void daze(){ System.out.println("打折"); } public void give(){ System.out.println("代金卷"); } }