本篇学习的是多线程的静态代理，以结婚为举例，婚庆公司为代理角色，自己为真实角色。 

package lesson04;

public class StaticProxy {
    public static void main(String[] args) {

        new WeddingCompony(new You()).happyMarry();
        new Thread(()-> System.out.println("111")).start();

    }
}
interface Marry {
    void happyMarry ();
}
//真角色：你自己结婚
class You implements Marry {
    @Override
    public void happyMarry() {
        System.out.println("我结婚了，好高兴");
    }
}
//代理角色：帮助你结婚
//代理角色可有做你做不了的事情，而你自己只需要做自己的事情即可
class WeddingCompony implements Marry {
    //代理真实目标
    private Marry target;

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

    @Override
    public void happyMarry() {
        before();
        this.target.happyMarry();
        after();

    }

    private void after() {
        System.out.println("结婚后结账");
    }

    private void before() {
        System.out.println("结婚前布置婚礼");
    }
}