JAVA设计模式（行为型）------ 责任链模式

避免请求发送者与接收者耦合在一起，让多个对象都有可能接收请求，将这些对象连接成一条链，并且沿着这条链传递请求，直到有对象处理它为止

public class ChainOfResponsibility_Main {
    public static void main(String[] args) {
        Support no_support = new Support() {
            @Override
            protected boolean resolve(Integer integer) {
                return false;
            }
        };
        Support support_1 = new Demo1_Support();
        Support support_2 = new Demo2_Support();
        no_support.next(support_1).next(support_2);
        no_support.support(2);
    }
}

abstract class Support{
    private Support next;
    public Support next(Support support){
        this.next = support;
        return this.next;
    }
    protected abstract boolean resolve(Integer integer);
    //实现链式调用
    public final void support(Integer integer){
        if (resolve(integer)){
            System.out.println(this.getClass().getName() + "---处理成功");
        }else if (next != null){
            next.support(integer);
        }else {
            System.out.println("无支持者");
        }
    }
}
class Demo1_Support extends Support{
    @Override
    protected boolean resolve(Integer integer) {
        if (integer == 1){
            System.out.println("Demo1_Support...处理了请求...");
            return Boolean.TRUE;
        }
        return Boolean.FALSE;
    }
}
class Demo2_Support extends Support{
    @Override
    protected boolean resolve(Integer integer) {
        if (integer == 2){
            System.out.println("Demo2_Support...处理了请求...");
            return Boolean.TRUE;
        }
        return Boolean.FALSE;
    }
}```