C# 利用socekt做到http监听，怎么样才能做到高性能

c#原始提供了http的监听的类HttpListener，实现了简单的http。文章地址《C# 控制台或者winform程序开启http的监听状态》

但是经过我测试，这个HttpListener提供的真的就只是简单的http监听功能，无法实现高并发处理。

不知道是我处理问题还是其他什么原因，无法实现，当上一个http请求连接尚未关闭的情况下，即便是把请求放到另外一个线程执行，都要等到处理结束，close了才能接受和处理下一次的连接请求。

也许你会说HttpListener不是提供了异步监听的嘛？异步不就可以类使用多线程实现嘛。但是经过我测试，确实没有得到我想要的实际效果。

所以另辟蹊径。http其实质就是socket的tcp封装实现的功能，单次请求，处理，关闭的socket功能。

所以这里找到了可以使用最原始的socket的来提供http监听，处理数据，关闭状态。

好了直接上代码，，一下代码部分来至于博客园，园友帖子提供，时间久远亦不知道是哪位仁兄的帖子，见谅。

  1   internal class HttpServer  2     {  3         PRivate ipEndPoint _IP;  4         private TcpListener _Listeners;  5         private volatile bool IsInit = false;  6         HashSet<string> Names;  7   8         /// <summary>  9         /// 初始化服务器 10         /// </summary> 11         public HttpServer(string ip, int port, HashSet<string> names) 12         { 13             IPEndPoint localEP = new IPEndPoint(IPAddress.Parse(ip), port); 14             this._IP = localEP; 15             Names = names; 16             if (Names == null) 17             { 18                 Names = new HashSet<string>(); 19             } 20             try 21             { 22                 foreach (var item in names) 23                 { 24                     Console.WriteLine(string.Format(System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff：") + "Start Listen Http Socket -> {0}:{1}{2} ", ip, port, item)); 25                 } 26                 this._Listeners = new TcpListener(IPAddress.Parse(ip), port); 27                 this._Listeners.Start(5000); 28                 IsInit = true; 29                 this.AcceptAsync(); 30             } 31             catch (Exception ex) 32             { 33                 Console.WriteLine(ex); 34                 this.Dispose(); 35             } 36         } 37  38         private void AcceptAsync() 39         { 40             try 41             { 42                 this._Listeners.BeginAcceptTcpClient(new AsyncCallback(AcceptAsync_Async), null); 43             } 44             catch (Exception) { } 45         } 46  47         private void AcceptAsync_Async(IAsyncResult iar) 48         { 49             this.AcceptAsync(); 50             try 51             { 52                 TcpClient client = this._Listeners.EndAcceptTcpClient(iar); 53                 var socket = new HttpClient(client); 54                 Console.WriteLine(System.DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss:fff：") + "Create Http Socket Remote Socket LocalEndPoint：" + client.Client.LocalEndPoint + " RemoteEndPoint：" + client.Client.RemoteEndPoint.ToString()); 55                 foreach (var item in Names) 56                 { 57                     if (socket.http_url.StartsWith(item)) 58                     { 59                         try 60                         { 61                             socket.process(); 62                             return; 63                         } 64                         catch { break; } 65                     } 66                 } 67                 socket.WriteFailure(); 68                 socket.Close(); 69             } 70             catch (Exception) { } 71         } 72  73         /// <summary> 74         /// 释放资源 75         /// </summary> 76         public void Dispose() 77         { 78             if (IsInit) 79             { 80                 IsInit = false; 81                 this.Dispose(true); 82                 GC.SuppressFinalize(this); 83             } 84         } 85  86         /// <summary> 87         /// 释放所占用的资源 88         /// </summary> 89         /// <param name="flag1"></param> 90         protected virtual void Dispose([MarshalAs(UnmanagedType.U1)] bool flag1) 91         { 92             if (flag1) 93             { 94                 if (_Listeners != null) 95                 { 96                     try 97                     { 98                         Console.WriteLine(string.Format("Stop Http Listener -> {0}:{1} ", this.IP.Address.ToString(), this.IP.Port)); 99                         _Listeners.Stop();100                         _Listeners = null;101                     }102                     catch { }103                 }104             }105         }106 107         /// <summary>108         /// 获取绑定终结点109         /// </summary>110         public IPEndPoint IP { get { return this._IP; } }111     }

这个是实现socket监听状态

  1  public class HttpClient  2     {  3         private static int MAX_POST_SIZE = 10 * 1024 * 1024; // 10MB  4         private const int BUF_SIZE = 4096;  5         private Stream inputStream;  6         public StreamWriter OutputStream;  7         public String http_method;  8         public String http_url;  9         public String http_protocol_versionstring; 10         public Hashtable httpHeaders = new Hashtable(); 11         internal TcpClient _Socket; 12  13         /// <summary> 14         /// 这个是服务器收到有效链接初始化 15         /// </summary> 16         internal HttpClient(TcpClient client) 17         { 18             this._Socket = client; 19             inputStream = new BufferedStream(_Socket.GetStream()); 20             OutputStream = new StreamWriter(new BufferedStream(_Socket.GetStream()), UTF8Encoding.Default); 21             ParseRequest(); 22         } 23  24         internal void process() 25         { 26             try 27             { 28                 if (http_method.Equals("GET")) 29                 { 30                     Program.Pool.ActiveHttp(this, GetRequestExec()); 31                 } 32                 else if (http_method.Equals("POST")) 33                 { 34                     Program.Pool.ActiveHttp(this, PostRequestExec()); 35                 } 36             } 37             catch (Exception e) 38             { 39                 Console.WriteLine("Exception: " + e.ToString()); 40                 WriteFailure(); 41             } 42         } 43  44         public void Close() 45         { 46             OutputStream.Flush(); 47             inputStream.Dispose(); 48             inputStream = null; 49             OutputStream.Dispose(); 50             OutputStream = null; // bs = null;             51             this._Socket.Close(); 52         } 53  54         #region 读取流的一行 private string ReadLine() 55         /// <summary> 56         /// 读取流的一行 57         /// </summary> 58         /// <returns></returns> 59         private string ReadLine() 60         { 61             int next_char; 62             string data = ""; 63             while (true) 64             { 65                 next_char = this.inputStream.ReadByte(); 66                 if (next_char == '/n') { break; } 67                 if (next_char == '/r') { continue; } 68                 if (next_char == -1) { Thread.Sleep(1); continue; }; 69                 data += Convert.ToChar(next_char); 70             } 71             return data; 72         } 73         #endregion 74  75         #region 转化出 Request private void ParseRequest() 76         /// <summary> 77         /// 转化出 Request 78         /// </summary> 79         private void ParseRequest() 80         { 81             String request = ReadLine(); 82             if (request != null) 83             { 84                 string[] tokens = request.Split(' '); 85                 if (tokens.Length != 3) 86                 { 87                     throw new Exception("invalid http request line"); 88                 } 89                 http_method = tokens[0].ToUpper(); 90                 http_url = tokens[1]; 91                 http_protocol_versionstring = tokens[2]; 92             } 93             String line; 94             while ((line = ReadLine()) != null) 95             { 96                 if (line.Equals("")) 97                 { 98                     break; 99                 }100                 int separator = line.IndexOf(':');101                 if (separator == -1)102                 {103                     throw new Exception("invalid http header line: " + line);104                 }105                 String name = line.Sub