设计模式学习笔记--职责链模式

Posted 2020-07-18 bzyzhang

 1 using System;
 2 
 3 namespace ChainOfResponsibility
 4 {
 5     /// <summary> 
 6     /// 作者：bzyzhang
 7     /// 时间：2016/6/1 6:54:00 
 8     /// 博客地址：http://www.cnblogs.com/bzyzhang/
 9     /// Handler说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
10     /// </summary> 
11     public abstract class Handler
12     {
13         protected Handler successor;
14 
15         public void SetSuccessor(Handler successor)
16         {
17             this.successor = successor;
18         }
19 
20         public abstract void HandleRequest(int request);
21     }
22 }

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 1 using System;
 2 
 3 namespace ChainOfResponsibility
 4 {
 5     /// <summary> 
 6     /// 作者：bzyzhang
 7     /// 时间：2016/6/1 6:56:18 
 8     /// 博客地址：http://www.cnblogs.com/bzyzhang/
 9     /// ConcreteHandler1说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
10     /// </summary> 
11     public class ConcreteHandler1:Handler
12     {
13         public override void HandleRequest(int request)
14         {
15             if (request >= 0 && request < 10)
16             {
17                 Console.WriteLine("{0}处理请求{1}",this.GetType().Name,request);
18             }
19             else if(successor != null)
20             {
21                 successor.HandleRequest(request);
22             }
23         }
24     }
25 }

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 1 using System;
 2 
 3 namespace ChainOfResponsibility
 4 {
 5     /// <summary> 
 6     /// 作者：bzyzhang
 7     /// 时间：2016/6/1 6:59:24 
 8     /// 博客地址：http://www.cnblogs.com/bzyzhang/
 9     /// ConcreteHandler2说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
10     /// </summary> 
11     public class ConcreteHandler2:Handler
12     {
13         public override void HandleRequest(int request)
14         {
15             if (request >= 10 && request < 20)
16             {
17                 Console.WriteLine("{0}处理请求{1}", this.GetType().Name, request);
18             }
19             else if (successor != null)
20             {
21                 successor.HandleRequest(request);
22             }
23         }
24     }
25 }

View Code

 1 using System;
 2 
 3 namespace ChainOfResponsibility
 4 {
 5     /// <summary> 
 6     /// 作者：bzyzhang
 7     /// 时间：2016/6/1 7:00:21 
 8     /// 博客地址：http://www.cnblogs.com/bzyzhang/
 9     /// ConcreteHandler3说明：本代码版权归bzyzhang所有，使用时必须带上bzyzhang博客地址 
10     /// </summary> 
11     public class ConcreteHandler3:Handler
12     {
13         public override void HandleRequest(int request)
14         {
15             if (request >= 20 && request < 30)
16             {
17                 Console.WriteLine("{0}处理请求{1}", this.GetType().Name, request);
18             }
19             else if (successor != null)
20             {
21                 successor.HandleRequest(request);
22             }
23         }
24     }
25 }

View Code

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 
 7 namespace ChainOfResponsibility
 8 {
 9     class Program
10     {
11         static void Main(string[] args)
12         {
13             Handler h1 = new ConcreteHandler1();
14             Handler h2 = new ConcreteHandler2();
15             Handler h3 = new ConcreteHandler3();
16             h1.SetSuccessor(h2);
17             h2.SetSuccessor(h3);
18 
19             int[] requests = { 2,5,14,22,18,3,27,20};
20 
21             foreach (int request in requests)
22             {
23                 h1.HandleRequest(request);
24             }
25         }
26     }
27 }

View Code