类适配器

被适配类

@Data
@AllArgsConstructor
class Adaptee {
    private int code;
    private Boolean success;
    private String message;
}

目标接口

interface Target{
    void request(int date);
}

适配类

class Adapter extends Adaptee implements Target{
    private int date;
    public Adapter(int code, Boolean success, String message) {
        super(code, success, message);
    }
    @Override
    public void request(int date) {
        this.date = date;
        System.out.println(super.getCode());
        System.out.println(this.getCode());
    }
}

测试

public static void main(String[] args) {
    Target t2 = new Adapter(200,false,"e");
    t2.request(2021);
}
//200
//200

对象适配器

对象适配器与类适配器不同之处在于，类适配器通过继承来完成适配，对象适配器则是通过关联来完成，这里稍微修改一下 Adapter 类即可将转变为对象适配器

public class Adapter implements Target{
    // 适配者是对象适配器的一个属性
    private Adaptee adaptee = new Adaptee();
    @Override
    public void request() {
        //...
        adaptee.adapteeRequest();
        //...
    }
}