/// <summary> /// 发送异步请求,并获取处理回复 /// </summary> /// <param name="asyncResult">异步状态</param> private void firePostDataRequest(IAsyncResult asyncResult) { this.startTime = DateTime.Now; HttpWebRequest request = (HttpWebRequest)asyncResult.AsyncState; Stream postDataStream = request.EndGetRequestStream(asyncResult); int totalBytes = this.PostArgs.Data.Length; int writeTimes = totalBytes / BUFFER_SIZE; int bytesWritten = 0; if (totalBytes % BUFFER_SIZE != 0) { writeTimes += 1; } for (int i = 0; i < writeTimes; i++) { //检查取消信号 if (CancellationSignal != null && CancellationSignal()) { if (CompletionHandler != null) { CompletionHandler(ResponseInfo.cancelled(), ""); } postDataStream.Close(); return; } int offset = i * BUFFER_SIZE; int size = BUFFER_SIZE; if (i == writeTimes - 1) { size = totalBytes - i * BUFFER_SIZE; } postDataStream.Write(this.PostArgs.Data, offset, size); bytesWritten += size; //请求进度处理 if (ProgressHandler != null) { ProgressHandler(bytesWritten, totalBytes); } } postDataStream.Flush(); postDataStream.Close(); request.BeginGetResponse(new AsyncCallback(handleResponse), request); }
/// <summary> /// 发送异步请求,并获取处理回复 /// </summary> /// <param name="asyncResult">异步状态</param> private void fireMultipartPostRequest(IAsyncResult asyncResult) { this.startTime = DateTime.Now; HttpWebRequest request = (HttpWebRequest)asyncResult.AsyncState; Stream postDataStream = request.EndGetRequestStream(asyncResult); int bytesWritten = 0; int totalBytes = (int)postDataMemoryStream.Length; int writeTimes = totalBytes / BUFFER_SIZE; if (totalBytes % BUFFER_SIZE != 0) { writeTimes += 1; } postDataMemoryStream.Seek(0, SeekOrigin.Begin); int memNumRead = 0; byte[] memBuffer = new byte[BUFFER_SIZE]; while ((memNumRead = postDataMemoryStream.Read(memBuffer, 0, memBuffer.Length)) != 0) { //检查取消信号 if (this.CancellationSignal != null && this.CancellationSignal()) { if (this.CompletionHandler != null) { this.CompletionHandler(ResponseInfo.cancelled(), ""); } postDataStream.Close(); return; } postDataStream.Write(memBuffer, 0, memNumRead); bytesWritten += memNumRead; //处理进度 if (ProgressHandler != null) { ProgressHandler(bytesWritten, totalBytes); } } postDataMemoryStream.Close(); postDataStream.Flush(); postDataStream.Close(); request.BeginGetResponse(new AsyncCallback(handleResponse), request); }