java23中设计模式之适配器模式

Posted 2020-09-28 周无极

package com.bjsxt.adapter;

/**
 * 被适配的类
 * (相当于例子中的，PS/2键盘)
 * @author Administrator
 *
 */
public class Adaptee {
    
    public void request(){
        System.out.println("可以完成客户请求的需要的功能！");
    }
}

Adaptee

package com.bjsxt.adapter;

/**
 * 客户端类
 * (相当于例子中的笔记本，只有USB接口)
 * @author Administrator
 *
 */
public class Client {
    
    public void test1(Target t){
        t.handleReq();
    }
    
    public static void main(String[] args) {
        Client  c = new Client();
        
        Adaptee a = new Adaptee();
        
//        Target t = new Adapter();

        Target t = new Adapter2(a);
        
        c.test1(t);
        
    }
    
}

Client

package com.bjsxt.adapter;

public interface Target {
    void handleReq();
}

Target

package com.bjsxt.adapter;

/**
 * 适配器 (类适配器方式)
 * (相当于usb和ps/2的转接器)
 * @author Administrator
 *
 */
public class Adapter extends Adaptee implements Target {
    
    
    @Override
    public void handleReq() {
        super.request();
    }
    
}

adapter 类适配器

package com.bjsxt.adapter;

/**
 * 适配器 (对象适配器方式,使用了组合的方式跟被适配对象整合)
 * (相当于usb和ps/2的转接器)
 * @author Administrator
 *
 */
public class Adapter2  implements Target {
    
    private Adaptee adaptee;
    
    @Override
    public void handleReq() {
        adaptee.request();
    }

    public Adapter2(Adaptee adaptee) {
        super();
        this.adaptee = adaptee;
    }
    
    
    
}

Adapter 对象适配器