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Dans le code ci-dessous, DoGet fonctionne très stable. Mais DoPost lève une InvalidOperationException non verrouillable au hasard. Je suis perdu. Tous les pointeurs seront d'une aide immense.C# smartdevice - HTTPWEBREQUEST GET vs POST InvalidOperationException
/*
Environment
-------------
* NET CF 2.0
* WM 5.0(USA Mobile Pocket PC Emulator)
* Windows XP Professional SP2
* VS 2008
*/
/*
The exception
------------------
at System.Net.HttpWebRequest.set_ContentLength(Int64 value)
at System.Net.HttpWebRequest.BufferConnectStream.WritingSucceeds()
at System.Net.HttpWriteStream.doClose()
at System.Net.HttpWriteStream.Finalize()
*/
public static string DoPost(string url)
{
// initialize from variables
string responseString = string.Empty;
ASCIIEncoding encoding = new ASCIIEncoding();
HttpWebResponse response;
byte[] data = encoding.GetBytes("dummy");
StreamReader reader;
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
//do the processing
SetRequestProperties(request, "POST"); // SETTING METHOD TO POST HERE
request.GetRequestStream().Write(data, 0, data.Length);
request.GetRequestStream().Close();
response = (HttpWebResponse)request.GetResponse();
reader = new StreamReader(response.GetResponseStream());
responseString = reader.ReadToEnd();
//clean up
response.Close();
response.GetResponseStream().Close();
response.GetResponseStream().Dispose();
reader.Close();
reader.Dispose();
reader = null;
response = null;
request = null;
encoding = null;
//return
MessageBox.Show("POST SUCCESS");
return responseString;
}
public static string DoGet(string url)
{
// initialize from variables
string responseString = string.Empty;
ASCIIEncoding encoding = new ASCIIEncoding();
HttpWebResponse response;
byte[] data = encoding.GetBytes("dummy");
StreamReader reader;
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(url);
//do the processing
SetRequestProperties(request, "GET"); // SETTING METHOD TO GET HERE
response = (HttpWebResponse)request.GetResponse();
reader = new StreamReader(response.GetResponseStream());
responseString = reader.ReadToEnd();
//clean up
response.Close();
response.GetResponseStream().Close();
response.GetResponseStream().Dispose();
reader.Close();
reader.Dispose();
reader = null;
response = null;
request = null;
encoding = null;
//return
MessageBox.Show("GET SUCCESS");
return responseString;
}
private static void SetRequestProperties(HttpWebRequest request, string s)
{
request.Method = s;
request.AllowWriteStreamBuffering = true;
request.KeepAlive = false;
request.ContentType = "application/x-www-form-urlencoded";
request.SendChunked = false;
request.Credentials = CredentialCache.DefaultCredentials;
request.UserAgent = "my mobile user agent";
request.Timeout = 60000;
request.ProtocolVersion = new System.Version("1.1");
}
Pouvez-vous obtenir un journal de l'application, et le mettre sur pastebin? Utilisez le fichier config comme indiqué sur http://ferozedaud.blogspot.com/2009/08/tracing-with-systemnet.html pour obtenir le journal. Le journal montrera ce qui se passe. – feroze
salut feroze. merci. cette journalisation fonctionne-t-elle sur un framework compact? De toute façon, je vais essayer. Merci. /cethie – cethie
OOPS! L'exception provient de System.Net du côté client (périphérique mobile à partir duquel la demande est envoyée). Les applications utilisant .NET compact framework ne peuvent pas avoir app.config etc et ne sont donc pas certaines si je peux tracer :( – cethie