C# http 發送文件和接收文件的代碼。

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//客戶端發送文件<br data-filtered="filtered">static void Main(string[] args)         {             Upload_Request("http://192.168.0.4:8099/WebService/AndroidProcessRequest.aspx", @"E:\vid20140213160351.zip", @"E:\vid20140213160351.zip");         }         private static int Upload_Request(string address, string fileNamePath, string saveName)         {             int returnValue = 0;               // 要上傳的文件               FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.ReadWrite,FileShare.ReadWrite);             BinaryReader r = new BinaryReader(fs);               //時間戳               string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x");             byte[] boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + strBoundary + "\r\n");               //請求頭部信息               StringBuilder sb = new StringBuilder();             sb.Append("--");             sb.Append(strBoundary);             sb.Append("\r\n");             sb.Append("Content-Disposition: form-data; name=\"");             sb.Append("file");             sb.Append("\"; filename=\"");             sb.Append(saveName);             sb.Append("\"");             sb.Append("\r\n");             sb.Append("Content-Type: ");             sb.Append("application/octet-stream");             sb.Append("\r\n");             sb.Append("\r\n");             string strPostHeader = sb.ToString();             byte[] postHeaderBytes = Encoding.UTF8.GetBytes(strPostHeader);               // 根據uri創建HttpWebRequest對象               HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address));             httpReq.Method = "POST";               //對發送的數據不使用緩存               httpReq.AllowWriteStreamBuffering = false;               //設置獲得響應的超時時間（300秒）               httpReq.Timeout = 300000;             httpReq.ContentType = "multipart/form-data; boundary=" + strBoundary;             long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length;             long fileLength = fs.Length;             httpReq.ContentLength = length;             try             {                   //每次上傳4k                   int bufferLength = 4096;                 byte[] buffer = new byte[bufferLength];                   //已上傳的字節數                   long offset = 0;                   //開始上傳時間                   DateTime startTime = DateTime.Now;                 int size = r.Read(buffer, 0, bufferLength);                 Stream postStream = httpReq.GetRequestStream();                   //發送請求頭部消息                   postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length);                 while (size > 0)                 {                     postStream.Write(buffer, 0, size);                     size = r.Read(buffer, 0, bufferLength);                 }                 //添加尾部的時間戳                   postStream.Write(boundaryBytes, 0, boundaryBytes.Length);                 postStream.Close();                   //獲取服務器端的響應                   WebResponse webRespon = httpReq.GetResponse();                 Stream s = webRespon.GetResponseStream();                 StreamReader sr = new StreamReader(s);                   //讀取服務器端返回的消息                   String sReturnString = sr.ReadLine();                 s.Close();                 sr.Close();                 if (sReturnString == "Success")                 {                     returnValue = 1;                 }                 else if (sReturnString == "Error")                 {                     returnValue = 0;                 }               }             catch (Exception ex)             {                 returnValue = 0;             }             finally             {                 fs.Close();                 r.Close();             }               return returnValue;         }

　　

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//接收文件 aspx掛在iis上能自動調用該類 public void ProcessRequest(HttpContext context)     {         context.Response.ContentType = "text/plain";           context.Response.Write("id = " + context.Request.Form["id"]             + ", name = " + context.Request.Form["name"]             + ", count = " + context.Request.Files.Count);         long filelegth = long.Parse(context.Request.Form["id"]);         //WritetoLog("1");         for (int i = 0; i < context.Request.Files.Count; i++)         {             try             {                 HttpPostedFile aFile = context.Request.Files[i];                 Stream mystream = aFile.InputStream;                 //FileStream fs = (FileStream)aFile.InputStream;                 //FileStream fs = new FileStream(aFile.FileName, FileMode.Open);                 FileStream fs;                 //FileStream fs = new FileStream(aFile.FileName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);                 long lStartPos = 0;                     WritetoLog(aFile.FileName);                 if (aFile.ContentLength == 0 || String.IsNullOrEmpty(aFile.FileName))                     continue;                   string displayFileName = Path.GetFileName(aFile.FileName);                 string realFileName = @"D:\" + displayFileName;     //真實路徑                // WritetoLog(realFileName);                   if (System.IO.File.Exists(realFileName))                 {                     WritetoLog("111111111111111");                     fs = File.Open(realFileName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite);                     lStartPos = fs.Length;                     fs.Seek(lStartPos, System.IO.SeekOrigin.Current); //移動文件流中的當前指針                 }                 else                 {                     WritetoLog("22222222222222");                     fs = new System.IO.FileStream(realFileName, System.IO.FileMode.Create);                     lStartPos = 0;                 }                       byte[] nbytes = new byte[512];                     int nReadSize = 0;                     nReadSize = mystream.Read(nbytes, 0, 512);                     while (nReadSize > 0)                     {                         fs.Write(nbytes, 0, nReadSize);                         nReadSize = mystream.Read(nbytes, 0, 512);                     }                     if (filelegth == fs.Length)                     {                                               }                     fs.Close();                     mystream.Close();                     //Console.WriteLine("下載完成");                                                       //aFile.SaveAs(realFileName);                   //DownloadFile(context, realFileName, 10);             }             catch (Exception ex)             {                 WritetoLog(ex.ToString());             }         }     }