一个简单的Httpserver以及获取post提交的参数

以下代码是我从网上找来的，但是一直获取不到post提交的参数，最后经过我的修改，终于可以得到post提交的数据。因为本人在网上找了很久都没有找到相关的资料，特意发出来希望能帮到大家，有什么不足的地方还请大神们指正，小弟不胜感激。

Httpserver代码

 1         public void StartListen() 2         { 3             using (HttpListener listerner = new HttpListener()) 4             { 5                 listerner.AuthenticationSchemes = AuthenticationSchemes.Anonymous;//指定身份验证 Anonymous匿名访问 6                 listerner.Prefixes.Add("http://localhost:8080/web/"); 7  8                 // listerner.Prefixes.Add("http://localhost/web/"); 9                 listerner.Start();10                 Console.WriteLine("WebServer Start Successed.......");11                 while (true)12                 {13                     //等待请求连接14                     //没有请求则GetContext处于阻塞状态15                     HttpListenerContext ctx = listerner.GetContext();16                     ctx.Response.StatusCode = 200;//设置返回给客服端http状态代码17                     //RequestType=1&Longitude=0.0&Latitude=0.0&RequestSource=xx18                     string RequestType = "";19                     string Longitude = "";20                     string Latitude = "";21                     string RequestSource = "";22                     //获取客户端写入的信息23                     string strRequest = ShowRequestData(ctx.Request);24                     if (!string.IsNullOrEmpty(strRequest))25                     {26                         string[] strR = strRequest.Split('&');27                         string[] strP = new string[strR.Length];28                         for (int i = 0; i < strR.Length; i++)29                         {30                             strP[i] = strR[i].Split('=')[1];31                         }32                         RequestType = strP[0];33                         Longitude = strP[1];34                         Latitude = strP[2];35                         RequestSource = strP[3];36                     }37                     string strSend = "";38 39                     if (!string.IsNullOrEmpty(RequestType))40                     {41                         if (RequestType == "1" && !string.IsNullOrEmpty(Longitude) && !string.IsNullOrEmpty(Latitude))42                         {43                             strSend = GetPointWeather(Longitude, Latitude, RequestSource);44                         }45                         if (RequestType == "2")46                         { 47                             48                         }49                     }50 51                     //使用Writer输出http响应代码52                     using (StreamWriter writer = new StreamWriter(ctx.Response.OutputStream, Encoding.GetEncoding("gb2312")))53                     {54                         writer.WriteLine(strSend);55                         writer.Close();56                         ctx.Response.Close();57                     }58 59                 }60                 //listerner.Stop();61             }62         }

GetPointWeather函数是我自己定义的，主要是得到返回给客户端的信息。

获取客户端的输入流

 1         public string ShowRequestData(HttpListenerRequest request) 2         { 3             if (!request.HasEntityBody) 4             { 5                 Console.WriteLine("No client data was sent with the request."); 6                 return ""; 7             } 8             System.IO.Stream body = request.InputStream; 9             System.Text.Encoding encoding = request.ContentEncoding;10             System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);11             if (request.ContentType != null)12             {13                 Console.WriteLine("Client data content type {0}", request.ContentType);14             }15             Console.WriteLine("Client data content length {0}", request.ContentLength64);16 17             Console.WriteLine("Start of client data:");18             // Convert the data to a string and display it on the console.19             string s = reader.ReadToEnd();20             Console.WriteLine(s);21             Console.WriteLine("End of client data:");22             body.Close();23             reader.Close();24             // If you are finished with the request, it should be closed also.25             return s;26         }

post请求代码：

 1         /// <summary> 2         /// 使用Http请求天气信息 3         /// </summary> 4         /// <param name="RequestType">请求类别（1：点预报 2：镇预报）</param> 5         /// <param name="Longitude">经度（如果是镇预报请求 值为空）</param> 6         /// <param name="Latitude">纬度（如果是镇预报请求 值为空）</param> 7         /// <param name="RequestSource">请求来源</param> 8         public void GetWeatherByHttp(string RequestType, string Longitude, string Latitude, string RequestSource) 9         {10             string strURL = "http://localhost:8080/web/";11             System.Net.HttpWebRequest request;12             request = (System.Net.HttpWebRequest)WebRequest.Create(strURL);13             //Post请求方式  14             request.Method = "POST";15             //内容类型  16             request.ContentType = "application/x-www-form-urlencoded";17             //参数经过URL编码  18             Encoding myEncoding = Encoding.GetEncoding("gb2312");//GetEncoding("gb2312")19             string paraUrlCoded = HttpUtility.UrlEncode("RequestType", myEncoding);20             paraUrlCoded += "=" + HttpUtility.UrlEncode(RequestType, myEncoding);21             paraUrlCoded += "&" + HttpUtility.UrlEncode("Longitude", myEncoding);22             paraUrlCoded += "=" + HttpUtility.UrlEncode(Longitude, myEncoding);23             paraUrlCoded += "&" + HttpUtility.UrlEncode("Latitude", myEncoding);24             paraUrlCoded += "=" + HttpUtility.UrlEncode(Latitude, myEncoding);25             paraUrlCoded += "&" + HttpUtility.UrlEncode("RequestSource", myEncoding);26             paraUrlCoded += "=" + HttpUtility.UrlEncode(RequestSource, myEncoding);27             byte[] payload;28             //将URL编码后的字符串转化为字节  29             payload = System.Text.Encoding.ASCII.GetBytes(paraUrlCoded);30             //设置请求的ContentLength   31             request.ContentLength = payload.Length;32             //获得请求流  33             Stream writer = request.GetRequestStream();34             //将请求参数写入流  35             writer.Write(payload, 0, payload.Length);36             //关闭请求流  37             writer.Close();38             System.Net.HttpWebResponse response;39             //获得响应流  40             response = (System.Net.HttpWebResponse)request.GetResponse();41             System.IO.Stream s;42             s = response.GetResponseStream();43             string StrDate = "";44             string strValue = "";45             StreamReader Reader = new StreamReader(s, Encoding.Default);46             while ((StrDate = Reader.ReadLine()) != null)47             {48                 strValue += StrDate + "\r\n";49             }50             // txtInfo.Text = strValue;  51             Reader.Close();52         }