/// <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);
}