设计模式-代理模式

代理模式

java实现代码：

public abstract class subject {    public abstract void Request();}class RealSubject extends subject{    @Override    public void Request() {        // TODO Auto-generated method stub        System.out.println("The real request");    }}class Proxy extends subject{    private RealSubject real;    public Proxy() {        // TODO Auto-generated constructor stub        real = new RealSubject();    }    @Override    public void Request() {        // TODO Auto-generated method stub        real.Request();    }}public class my{    public static void main(String[] args) {        Proxy proxy = new Proxy();        proxy.Request();    }}