proxysubject.java

java 框架核心技术编程

package cn.mldn.lxh.demo08;

public class ProxySubject implements Subject {
	private Subject sub = null ;
	public ProxySubject(Subject sub)
	{
		this.sub = sub ;
	}
	public void before()
	{
		System.out.println("开始操作之前 --> 择菜") ;
	}
	public void request() {
		this.before() ;
		this.sub.request() ;
		this.after() ;
	}
	public void after()
	{
		System.out.println("结束操作之后 --> 刷锅") ;
	}
}