구조 형 모드 7 의 1-Proxy 프 록 시 모드 예 이해

public abstract class AbstractObject {
    //    ：    
    public abstract void operation();
}

public class RealObject extends AbstractObject {
    @Override
    public void operation() {
        //         
        System.out.println("    ");
    }
}

public class ProxyObject extends AbstractObject{
    RealObject realObject = new RealObject();
    @Override
    public void operation() {
        //               
        System.out.println("before");        
        realObject.operation();        
        //               
        System.out.println("after");
    }
}

public class Client {

    public static void main(String[] args) {
        //          ，        
        AbstractObject obj = new ProxyObject();
        obj.operation();
    }

}

interface Network{
public void  browse();
}

class Real implements Network{//       
public void browse(){
System.out.printlf("  ing");
}
}

class Proxy implements Network{
Network network;
public Proxy(Network network){
this.network=network;
}

public void  check(){
System.out.printlf("        ");
}
public void  checkTime(){
System.out.printlf("        ");
}
public void  browseOnline(){
check();
checkTime();
network.browse();//       
}
}

public class ProxyTest{
public static void main(String args[]){
Network network=new Proxy(new Real());
network.browse();
}
}

        
        
  ing