大话设计模式之代理模式

1 /**
2  * 定义共有接口
3  */
4 public interface Subject {
5 
6     void resquest();
7 }

1 /**
2  * 真实实现
3  */
4 public class RealSubject implements Subject{
5     @Override
6     public void resquest() {
7         System.out.println("真实的实现");
8     }
9 }

 1 public class Proxy implements Subject{
 2     private RealSubject realSubject;
 3 
 4     public Proxy() {
 5         this.realSubject = new RealSubject();
 6     }
 7 
 8     @Override
 9     public void resquest() {
10         realSubject.resquest();
11     }
12 }

1 public class Main {
2 
3     public static void main(String[] args) {
4         Proxy proxy = new Proxy();
5         proxy.resquest();
6     }
7 }