设计模式课程设计模式精讲 12-2 适配器模式coding

1　　　　代码演练

1.1　　代码演练1（类适配器模式）

1.2　　代码演练2（对象适配模式）

1　　　　代码演练

1.1　　代码演练1（类适配器模式）

需求相关：

a类和b类，想用b类或者b类的子类实现a类的方法

设计分析：

适配器类c继承了被适配器类a并且实现了目标类b的接口，通过适配器类c把被适配者a的方法适配给了目标类b；

适配器类c是被适配者a的子类，通过调用父类的方法实现了目标类b

UML类图：

测试类：

package com.geely.design.pattern.structural.adapter.classadapter;

public class Test {
    public static void main(String [] args){
        //打印目标类的方法
        Target target = new ConcreteTarget();
        target.request();


        //打印适配器的方法
        Adapter adapter = new Adapter();
        adapter.request();

    }
}

适配器类Adapter:

package com.geely.design.pattern.structural.adapter.classadapter;

public class Adapter extends Adaptee implements Target {
    @Override
    public void request() {
        super.adapteeRequest();
    }
}

目标接口Target：

package com.geely.design.pattern.structural.adapter.classadapter;

/**
 * 目标接口
 */
public interface Target {
    void request();
}

目标实现类ConCreteTarget：

package com.geely.design.pattern.structural.adapter.classadapter;

/**
 * 目标实现类
 */
public class ConcreteTarget implements Target {
    @Override
    public void request() {
        System.out.println("目标实现类自己的方法，，，");
    }
}

被适配者类Adaptee：

package com.geely.design.pattern.structural.adapter.classadapter;

/**
 * 该类是被适配者，想实现目标类的方法
 */
public class Adaptee {
    public void adapteeRequest(){
        System.out.println("被适配器执行它自己的方法。。。");
    }
}

打印日志：

"C:\Program Files\Java\jdk1.7.0_79\bin\java.exe" "-javaagent:D:\java\devolopKit\idea\anZh\IntelliJ IDEA Community Edition 2018.1.4\lib\idea_rt.jar=33436:D:\java\devolopKit\idea\anZh\IntelliJ IDEA Community Edition 2018.1.4\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.7.0_79\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\jce.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\jfxrt.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.7.0_79\jre\lib\resources.jar;C:\Program 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com.geely.design.pattern.structural.adapter.classadapter.Test
目标实现类自己的方法，，，
被适配器执行它自己的方法。。。

Process finished with exit code 0

1.2　　代码演练2（对象适配模式）

来源：https://www.cnblogs.com/1446358788-qq/p/11495259.html

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设计模式课程 设计模式精讲 12-2 适配器模式coding

设计模式课程设计模式精讲 12-2 适配器模式coding