Java职责链模式的深入了解

package com.chainOfResponsibilityPattern.SubmitAccount;

public class PurchaseRequest {
    private String type;
    private int id;
    private float price;
    public PurchaseRequest(String type, int id, float price) {
        this.type = type;
        this.id = id;
        this.price = price;
    }
    public String getType() {
        return type;
    }
    public int getId() {
        return id;
    }
    public float getPrice() {
        return price;
    }
}

package com.chainOfResponsibilityPattern.SubmitAccount;

public abstract class ApprovePeople {
    
    ApprovePeople approvePeople;
    
    String name;
    public ApprovePeople(String name) {
        this.name = name;
    }
    
    public void setNext(ApprovePeople approvePeople) {
        this.approvePeople = approvePeople;
    }
    
    public abstract void handleRequest(PurchaseRequest purchaseRequest);
}

package com.chainOfResponsibilityPattern.SubmitAccount;

public class TeacherDirector extends ApprovePeople {
    public TeacherDirector(String name) {
        super(name);
    }
    @Override
    public void handleRequest(PurchaseRequest purchaseRequest) {
        if (purchaseRequest.getPrice() <= 5000) {
            System.out.println("请求编号为：" + purchaseRequest.getId() + "\n请求类型为：" + purchaseRequest.getType() +
                    "\n请求金额为：" + purchaseRequest.getPrice() + "的项目被" + this.name + "处理成功");
        } else {
            approvePeople.handleRequest(purchaseRequest);
        }
    }
}

package com.chainOfResponsibilityPattern.SubmitAccount;public class DeanApprove extends ApprovePeople{    public DeanApprove(String name) {        super(name);    }    @Override    public void handleRequest(PurchaseRequest purchaseRequest) {        if(purchaseRequest.getPrice()> 5000 && purchaseRequest.getPrice() <= 10000) {            System.out.println("请求编号为：" + purchaseRequest.getId() + "\n请求类型为：" + purchaseRequest.getType() +                    "\n请求金额为：" + purchaseRequest.getPrice() + "的项目被" +this.name +"处理成功");        }else {            approvePeople.handleRequest(purchaseRequest);        }    }}

package com.chainOfResponsibilityPattern.SubmitAccount;

public class ClientTest {
    public static void main(String[] args) {
        //创建一个请求
        PurchaseRequest purchaseRequest = new PurchaseRequest("体育用品", 1, 4000);
        //创建相关审批人
        TeacherDirector zhang1 = new TeacherDirector("张主任");
        DeanApprove li2 = new DeanApprove("李院长");
        VicePresident chen3 = new VicePresident("陈副院长");
        President liu4 = new President("刘校长");
        
        zhang1.setNext(li2);
        li2.setNext(chen3);
        chen3.setNext(liu4);
        liu4.setNext(zhang1);
        //处理请求
        zhang1.handleRequest(purchaseRequest);
    }
}