C# Socket 模擬http服務器幫助類，
0x01 寫在前面
0x02 Http協議
0x03 TCP/IP
0x04 看代碼
0x05 總結
0x01 寫在前面
由於工作中，經常需要在服務器之間，或者進程之間進行通信，分配任務等。用Socket操作，太麻煩了，需要建立連接，處理消息。所以
准備創建一個Socket模擬Http服務器的幫助類，來直接通過WebClient進行調用。
0x02 Http協議
我的理解：http協議，其實就是依托於tcp/ip的一個協議，也是可以通過socket發送消息，只是說。發送的內容格式滿足http的條件，就可以被理解成http協議。
常用Http頭。 Http版本也是可以寫成1.1的。
HTTP/1.0 200 OK
Content-Type: text/html
Connection: keep-alive
Content-Encoding: utf-8
0x03 TCP/IP
我的理解：TCP/IP協議其實是某一類協議的大分類了，很多協議都是基於這個協議來傳遞消息的。更詳細的信息，自己搜索一下。
0x04 看代碼
SocketHttpHelper.cs socket模擬http幫助類
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1 public class SocketHttpHelper
2 {
3 private string ip = "127.0.0.1";
4 private int port = 8123;
5 private int count = 0;
6 private Socket server = null;
7
8 public string DefaultReturn = string.Empty;
9
10 public event Func<string, string, string> Handler = null;
11
12 public SocketHttpHelper()
13 {
14 }
15
16 public SocketHttpHelper(string ip, int port)
17 {
18 this.ip = ip;
19 this.port = port;
20 }
21
22 public void StartListen(int count = 10)
23 {
24 this.count = count;
25 Thread t = new Thread(new ThreadStart(ProcessThread));
26 t.IsBackground = true;
27 t.Start();
28 }
29
30 public void CloseSocket()
31 {
32 try
33 {
34 server.Close();
35 }
36 catch { }
37 }
38
39 private void ProcessThread()
40 {
41 server = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
42 server.Bind(new System.Net.IPEndPoint(System.Net.IPAddress.Parse(ip), port));
43 server.Listen(count);
44 while (true)
45 {
46 try
47 {
48 Socket client = server.Accept();
49 ThreadPool.QueueUserWorkItem(new WaitCallback(ListenExecute), client);
50 }
51 catch { }
52 finally
53 {
54 }
55 }
56 }
57
58 private void ListenExecute(object obj)
59 {
60 Socket client = obj as Socket;
61 try
62 {
63 string ip = (client.RemoteEndPoint as System.Net.IPEndPoint).Address.ToString();
64 byte[] buffer = new byte[1024];
65 int count = client.Receive(buffer);
66 if (count > 0)
67 {
68 string content = Encoding.UTF8.GetString(buffer, 0, count);
69
70 // 解析 content
71 Regex actionRegex = new Regex(@"GET\s+/(?<action>\w+)\?(?<args>[^\s]{0,})");
72 string action = actionRegex.Match(content).Groups["action"].Value;
73 string args = actionRegex.Match(content).Groups["args"].Value;
74 string headStr = @"HTTP/1.0 200 OK
75 Content-Type: text/html
76 Connection: keep-alive
77 Content-Encoding: utf-8
78
79 ";
80 if (Handler != null)
81 {
82 try
83 {
84 string result = Handler(action, args);
85 string data = string.Format(headStr + result);
86 client.Send(Encoding.UTF8.GetBytes(data));
87 }
88 catch { }
89 finally
90 {
91 }
92 }
93 else
94 {
95 string data = string.Format(headStr + DefaultReturn);
96 client.Send(Encoding.UTF8.GetBytes(data));
97 }
98 }
99 }
100 catch { }
101 finally
102 {
103 try
104 {
105 client.Shutdown(SocketShutdown.Both);
106 client.Close();
107 client.Dispose();
108 }
109 catch { }
110 }
111 }
112 }
View Code
0x05 總結
由於，每次都要從Socket開始寫，寫多了才發現，原來需要寫一個公用類，點都不費時間。
