spring 静态代理模式

不想再原有的代码中更改业务，使用静态代理模式

package com.wyl.demo01;

//租房
public interface Rent {

    public void rent();
}

package com.wyl.demo01;
//房东
public class Host implements Rent{


    @Override
    public void rent() {
        System.out.println("房东要出租房子");
    }
}

package com.wyl.demo01;
//代理
public class Proxy implements Rent{
    private Host host;

    public Proxy(Host host) {
        this.host = host;
    }

    public Proxy() {
    }


    @Override
    public void rent() {
        host.rent();
        seeHouse();
        fare();
    }

    //看房
    public void seeHouse(){
        System.out.println("中介带我看房子");
    }
    //中介费
    public void fare(){
        System.out.println("收中介费");
    }
}

package com.wyl.demo01;
//我
public class Client {
    public static void main(String[] args) {
        Host host = new Host();
        Proxy proxy = new Proxy(host);
        proxy.rent();
    }
}