static void UploadDataCallback(IAsyncResult result)
{
//结束异步写入
UploadDataState state = result.AsyncState as UploadDataState;
Stream stream = state.RequestStream;
try
{
stream.EndWrite(result);
stream.Close();
}
catch (Exception ex)
{
//
}
state.Finished = true;
}
/// <summary>
/// Post数据到Rovio上。
/// Rovio 为HTTP 1.0版本，不支持分块上传。
/// </summary>
/// <param name="cmd"></param>
/// <param name="audio"></param>
public void UploadData(string cmd, byte[] audio, int offset, int length, int timeout = 30000, BackgroundWorker bw = null)
{
Uri targetUri = new Uri(new Uri(this.rovioAddress), cmd);
HttpWebRequest request = null;
try
{
request = WebRequest.Create(targetUri) as HttpWebRequest;
request.Credentials = this.rovioCredentials;
request.AllowWriteStreamBuffering = true;
request.Timeout = timeout;
request.Method = WebRequestMethods.Http.Post;
request.ContentType = "application/x-www-form-urlencoded";
//务必设置false，否则连接会一直占用
request.KeepAlive = false;
request.ContentLength = length;
//Stopwatch stopwatch = new Stopwatch();
//stopwatch.Start();
Stream requestStream = request.GetRequestStream();
//Debug.WriteLine("请求耗时：" + stopwatch.ElapsedMilliseconds);
//启动异步写入
UploadDataState state = new UploadDataState(requestStream);
IAsyncResult result = requestStream.BeginWrite(audio, offset, length, UploadDataCallback, state);
while (!state.Finished)
{
if (bw != null && bw.CancellationPending)
{
try
{
requestStream.EndWrite(result);
requestStream.Close();
}
catch (Exception ex)
{
//
}
break;
}
}
//Debug.WriteLine("写入耗时：" + stopwatch.ElapsedMilliseconds);
// 获取响应，但Rovio必然会断开连接
HttpWebResponse response = null;
try
{
response = request.GetResponse() as HttpWebResponse;
}
catch (WebException ex)
{
switch (ex.Status)
{
case WebExceptionStatus.KeepAliveFailure:
case WebExceptionStatus.ConnectionClosed:
//Rovio对该请求无响应，忽略此错误
break;
default:
throw ex;
}
}
finally
{
if (response != null)
{
response.Close();
}
}
//Debug.WriteLine("关闭耗时：" + stopwatch.ElapsedMilliseconds);
}
catch (WebException ex)
{
throw ex;
}
catch (Exception ex)
{
throw ex;
}
finally
{
if (request != null)
{
request.Abort();
}
}
}
/// <summary>
/// Post数据到Rovio上。
/// Rovio 为HTTP 1.0版本，不支持分块上传。
/// </summary>
/// <param name="cmd"></param>
/// <param name="audio"></param>
public void UploadData(string cmd, byte[] audio, int offset, int length, int timeout = 30000, BackgroundWorker bw = null)
{
Uri targetUri = new Uri(new Uri(this.rovioAddress), cmd);
HttpWebRequest request = null;
try
{
request = WebRequest.Create(targetUri) as HttpWebRequest;
request.Credentials = this.rovioCredentials;
request.AllowWriteStreamBuffering = true;
request.Timeout = timeout;
request.Method = WebRequestMethods.Http.Post;
request.ContentType = "application/x-www-form-urlencoded";
//务必设置false，否则连接会一直占用
request.KeepAlive = false;
request.ContentLength = length;
//Stopwatch stopwatch = new Stopwatch();
//stopwatch.Start();
Stream requestStream = request.GetRequestStream();
//Debug.WriteLine("请求耗时：" + stopwatch.ElapsedMilliseconds);
//启动异步写入
UploadDataState state = new UploadDataState(requestStream);
IAsyncResult result = requestStream.BeginWrite(audio, offset, length, UploadDataCallback, state);
while (!state.Finished)
{
if (bw != null && bw.CancellationPending)
{
try
{
requestStream.EndWrite(result);
requestStream.Close();
}
catch (Exception ex)
{
//
}
break;
}
}
//Debug.WriteLine("写入耗时：" + stopwatch.ElapsedMilliseconds);
// 获取响应，但Rovio必然会断开连接
HttpWebResponse response = null;
try
{
response = request.GetResponse() as HttpWebResponse;
}
catch (WebException ex)
{
switch (ex.Status)
{
case WebExceptionStatus.KeepAliveFailure:
case WebExceptionStatus.ConnectionClosed:
//Rovio对该请求无响应，忽略此错误
break;
default:
throw ex;
}
}
finally
{
if (response != null)
response.Close();
}
//Debug.WriteLine("关闭耗时：" + stopwatch.ElapsedMilliseconds);
}
catch (WebException ex)
{
throw ex;
}
catch (Exception ex)
{
throw ex;
}
finally
{
if(request != null)
request.Abort();
}
}
