静态代理

package com.wangyu;

public interface Subject {
	public void request();
}

package com.wangyu;

public class RealSubject implements Subject {

	public void request() {
		System.out.println("真实实现--》关注做菜");
	}
}

package com.wangyu;

public class ProxySubject implements Subject {
	private Subject sub =null;
	public ProxySubject(Subject sub){
		this.sub=sub;
	}
	public void before(){
		System.out.println("摘菜");
	}

	public void request() {
		
		this.before();
		this.sub.request();
		this.after();
		
	}
	
	public void after(){
		System.out.println("刷锅");
	}

}

package com.wangyu;

public class TestProxy {
	public static void main(String[] args) {
		Subject sub = new ProxySubject(new RealSubject());
		sub.request();
	}
}