静态代理模式

静态代理模式总结：

1. 真实对象和代理对象都要实现同一个接口
2. 代理对象要代理真实对象

优点

1. 代理对象可以做很多真实对象做不了的事情
2. 真实对象专注做自己的事情

代码

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

interface Marry{
    public void HappyMarry();
}

class You implements Marry{

    @Override
    public void HappyMarry() {
        System.out.println("you get married!");
    }
}

class MarryCompany implements Marry{

    private Marry target;

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

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

    private void after() {
        System.out.println("after, company get money");
    }

    private void before() {
        System.out.println("before, company prepared");
    }
}

效果