[英]C# HttpClient weird error
我有以下代碼,該代碼在Windows Phone 8上運行沒有問題,但是在Windows 8上運行會導致錯誤。
錯誤:
Exception received while submitting the payload: at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at FooProject.HTTPHelper.<SubmitRequestToMobileAnalytics>d__a.MoveNext() in c:\Users\foo_000\Documents\GitHub\FooProject\HttpHelper.cs:line 135
Inner Exception is: at System.Net.ConnectStream.CloseInternal(Boolean internalCall, Boolean aborting)
at System.Net.ConnectStream.System.Net.ICloseEx.CloseEx(CloseExState closeState)
at System.Net.ConnectStream.Dispose(Boolean disposing)
at System.IO.Stream.Close()
at System.Net.Http.HttpClientHandler.<>c__DisplayClass8.<GetRequestStreamCallback>b__6(Task task)
碼:
string jsonPayload = "<<<Some JSON Payload>>>";
using (HttpClient httpClient = new HttpClient())
{
try
{
//Converting the JSON payload as GZipped byte array
byte[] payload = CompressAsByte(jsonPayload);
if (payload != null)
{
HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, Config.Instance().TrackingServer);
request.Content = new ByteArrayContent(payload);
request.Content.Headers.Add("Content-Encoding", "gzip");
request.Content.Headers.Add("Content-Type", "application/json");
HttpResponseMessage response = await httpClient.SendAsync(request);
return (int)response.StatusCode;
}
else
{
return 0;
}
}
catch (System.Exception e)
{
Logger.Log("Exception received while submitting the payload: " + e.StackTrace);
if (e.InnerException != null)
{
Logger.Log("Inner Exception is: " + e.InnerException.StackTrace);
}
return 0;
}
}
對於Windows Phone 8 App,我從NuGet存儲庫引用Microsoft HttpClient。 對於Windows 8,我已經可以看到軟件包System.Net和System.Net.Http。
由於某些原因,在Phone上運行的相同代碼和在Windows 8 Tablet(模擬器)上運行的相同代碼會引發錯誤。
我在Windows 8上使用HttpClient是否缺少任何內容?
我添加了以下代碼,它像魔術一樣工作。
request.Content.Headers.Add("Content-Length", payload.Length.ToString());
我不知道為什么在Windows Phone 8上沒有此行便成功了。
但這行得通。
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