静态代理

//静态代理
public class Test01 {
    public static void main(String args[]) {
        new WeddingCompany(new You()).happyMarry();
    }
}

interface Marry{
    void happyMarry();
}
class You implements Marry{
    @Override
    public void happyMarry() {
        System.out.println("结婚");
    }
}
class WeddingCompany implements Marry{
    private Marry target;

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

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

    private void before() {
        System.out.println("事前准备");
    }
}