Java静态代理

Fruit.java

package com.wzh.proxy.fruit;

public interface Fruit {
    public void eat();
}

Apple.java

package com.wzh.proxy.fruit.impl;

import com.wzh.proxy.fruit.Fruit;

public class Apple implements Fruit{

    @Override
    public void eat() {
        
        System.out.println("eating apple");
        
    }

}

FruitProxy.java

package com.wzh.proxy.fruit.proxy;

import com.wzh.proxy.fruit.Fruit;

public class FruitProxy implements Fruit{
    
    Fruit fruit;
    
    public FruitProxy(Fruit _fruit) {
        fruit = _fruit;
    }

    @Override
    public void eat() {
        System.out.println("start");
        fruit.eat();
        System.out.println("over");    
    }
    
}

Run.java

package com.wzh.proxy.run;

import com.wzh.proxy.fruit.Fruit;
import com.wzh.proxy.fruit.impl.Apple;
import com.wzh.proxy.fruit.proxy.FruitProxy;

public class Run {

    public static void main(String[] args) {
        
        Apple apple = new Apple();
        Fruit fruitProxy = new FruitProxy(apple);
        fruitProxy.eat();
    }
    
}