//开始启动工作时执行的事件处理方法 void Worker_DoWork(object sender, DoWorkEventArgs e) { FileUploadItem receive = e.Argument as FileUploadItem; e.Result = UpSound_Request(receive); }
public int UpSound_Request(FileUploadItem receive) { string address = receive.Address; string fileNamePath = receive.FileNamePath; string saveName = receive.SaveName; int returnValue = 0; //要上传的文件 FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read); //二进制对象 BinaryReader r = new BinaryReader(fs); //时间戳 string strBoundary = "----------" + DateTime.Now.Ticks.ToString("x"); byte[] boundaryBytes = Encoding.ASCII.GetBytes("\r\n--" + strBoundary + "\r\n"); //请求的头部信息 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(HttpUtility.UrlEncode(saveName, Encoding.UTF8)); sb.Append("\";"); sb.Append("\r\n"); sb.Append("Content-Type: "); sb.Append("application/octet-stream"); sb.Append("\r\n"); sb.Append("\r\n"); byte[] postHeaderBytes = Encoding.UTF8.GetBytes(sb.ToString()); // 根据uri创建HttpWebRequest对象 HttpWebRequest httpReq = (HttpWebRequest)WebRequest.Create(new Uri(address)); httpReq.Method = "POST"; //对发送的数据不使用缓存 httpReq.AllowWriteStreamBuffering = false; //设置获得响应的超时时间(300秒) httpReq.Timeout = 300000; httpReq.ContentType = "multipart/form-data; boundary=" + strBoundary; long length = fs.Length + postHeaderBytes.Length + boundaryBytes.Length; long fileLength = fs.Length; FileUploadUtilChange fileUploadUtilChange = new FileUploadUtilChange(); fileUploadUtilChange.FileLength = fileLength; fileUploadUtilChange.Length = length; httpReq.ContentLength = length; try { //每次上传4k int bufferLength = 4096; byte[] buffer = new byte[bufferLength]; //已上传的字节数 long offset = 0; //开始上传时间 DateTime startTime = DateTime.Now; int size = r.Read(buffer, 0, bufferLength); Stream postStream = httpReq.GetRequestStream(); //发送请求头部消息 postStream.Write(postHeaderBytes, 0, postHeaderBytes.Length); while (size > 0) { postStream.Write(buffer, 0, size); offset += size; TimeSpan span = DateTime.Now - startTime; double second = span.TotalSeconds; fileUploadUtilChange.Second = second; fileUploadUtilChange.Offset = offset; worker.ReportProgress((int)(offset * 100.0 / length), fileUploadUtilChange); System.Console.WriteLine((offset * 100.0 / length)); //this.Invoke(new Action(() => //{ // lbtip.Text = "已用时:" + second.ToString("F2") + "秒"; // if (second > 0.001) // lbtip.Text += " 平均速度:" + (offset / 1024 / second).ToString("0.00") + "KB/秒"; // else // lbtip.Text += " 正在连接…"; // lbtip.Text += "已上传:" + (offset * 100.0 / length).ToString("F2") + "%"; // lbtip.Text += (offset / 1048576.0).ToString("F2") + "M/" + (fileLength / 1048576.0).ToString("F2") + "M"; //})); size = r.Read(buffer, 0, bufferLength); } //添加尾部的时间戳 postStream.Write(boundaryBytes, 0, boundaryBytes.Length); postStream.Close(); //获取服务器端的响应 WebResponse webRespon = httpReq.GetResponse(); Stream s = webRespon.GetResponseStream(); //读取服务器端返回的消息 StreamReader sr = new StreamReader(s); String sReturnString = sr.ReadLine(); s.Close(); sr.Close(); if (sReturnString == "Success") { returnValue = 1; } else if (sReturnString == "Error") { returnValue = 0; } } catch (SystemException ex) { Console.WriteLine(ex.Message); returnValue = 0; } finally { fs.Close(); r.Close(); } return(returnValue); }
public FileUploadUtilEvent(FileUploadItem receive) { this.receive = receive; }