静态代理模式

总结：

代理对象和真实对象都要实现同一个接口

代理对象要代理真实角色

优点：

真实对象专注做自己的事

代理对象可以做真实角色做不了的事

代码理解

package Proxy;

public class StaticProxy {
    public static void main(String[] args) {
//        You you =new You();
        WeddingCompany weddingCompany = new WeddingCompany(new You());
        weddingCompany.HappyMarry();
    }
}

    interface Marry{
        void HappyMarry();
    }

    class You implements Marry{
        @Override
        public void HappyMarry() {
            System.out.println("结婚了，好happy");
        }
    }

     class WeddingCompany implements Marry{
        private Marry target;

        public WeddingCompany(Marry target) {
            this.target = target;
        }

        @Override
        public void HappyMarry() {
            before();
            this.target.HappyMarry();
            after();
        }
       private void before(){
            System.out.println("布置婚礼现场");
        }
       private void  after(){
            System.out.println("收拾婚礼现场");
        }

    }