C#.NET HttpWebRequest错误:操作已超时 [英] C# .NET HttpWebRequest Error : operation has timed out

问题描述

你好

我正在开发一个与PHP脚本通信的C#应用​​.

I am working on a C# app that communicates with a PHP script.

我使用以下代码将字符串数据(可能少于100kb)发布到PHP脚本中:

I use the following code to post string data (probably less than 100kb) to the PHP Script:

        public string Post(string api_method, string api_data = "")
        {
            // Init
            string Result = "";
            string PostData = "";
            HttpWebRequest MyHttpWebRequest;
            Stream MyStream = null;
            HttpWebResponse MyResponse = null;
            StreamReader MyStreamReader = null;

            // Post Data To infiniteSAGEBroker Script
            try
            {
                // Load Cryptography Object
                using (Rijndael MyRijndael = new Rijndael(Key, IV))
                {
                    // Create Http Web Request
                    MyHttpWebRequest = (HttpWebRequest)WebRequest.Create(Settings.Default.SAGE_Broker_Url);
                    MyHttpWebRequest.Method = "POST";
                    MyHttpWebRequest.Timeout = (Settings.Default.HTTP_Web_Client_Timeout_Minutes * 60 * 1000);
                    MyHttpWebRequest.ReadWriteTimeout = (Settings.Default.HTTP_Web_Client_Timeout_Minutes * 60 * 1000);
                    MyHttpWebRequest.AllowWriteStreamBuffering = true;
                    MyHttpWebRequest.KeepAlive = false;
                    MyHttpWebRequest.UserAgent = "infiniteSAGEConnect v1.0";
                    MyHttpWebRequest.Credentials = cc;

                    // Build Post Data
                    string _api_method = MyRijndael.Encrypt(api_method);
                    string _api_data = MyRijndael.Encrypt(api_data);
                    PostData = "api_method=" + System.Web.HttpUtility.UrlEncode(_api_method) + "&api_data=" + System.Web.HttpUtility.UrlEncode(_api_data);
                    byte[] PostDataBytes = Encoding.UTF8.GetBytes(PostData);

                    // Post Data
                    MyHttpWebRequest.ContentType = "application/x-www-form-urlencoded";
                    MyHttpWebRequest.ContentLength = PostDataBytes.Length;
                    MyStream = MyHttpWebRequest.GetRequestStream();
                    MyStream.Write(PostDataBytes, 0, PostDataBytes.Length);

                    // Get Response
                    MyResponse = (HttpWebResponse)MyHttpWebRequest.GetResponse();
                    MyStreamReader = new StreamReader(MyResponse.GetResponseStream());
                    string tmpResult = MyStreamReader.ReadToEnd();

                    // Decrypt Response
                    Result = MyRijndael.Decrypt(tmpResult);
                }
            }
            catch (Exception e)
            {
                // Log Error
                Result = "Error : " + e.Message + " | Operation : " + api_method + " | Data : " + PostData;
            }
            finally
            {
                // Release Resources
                if (null != MyStreamReader) { MyStreamReader.Close(); }
                if (null != MyResponse)     { MyResponse.Close();     }
                if (null != MyStream)       { MyStream.Close();       }
            }

            // Finished
            return Result;
        }

推荐答案

这些可能不是您的代码问题.您的php和.NET主机都位于localhost?

Ths might not be your code problem.. are both of your php and .NET host in localhost?

如果没有，请执行ping -t并查看响应时间是什么.

If not then do a ping -t and see what is the response time.

还使用tracert查看是否可以访问服务器.

Use also tracert to see whether you can reach the server.

chanmm

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