[.net] WebRequest Exception
Author
Im trying to get the response of a web request by calling the GetResponse() method after creating (succesfully) the WebRequest.
However, one day, all of a sudden, after it had been working earlier, I get a "ReceiveFailure" WebException.
Any Ideas?
Author
WebRequest req;
WebResponse res;
req = WebRequest.Create("https://nexus.passport.com/rdr/pprdr.asp");
res = req.GetResponse(); (Throws WebException : ReceiveFailure)
WebResponse res;
req = WebRequest.Create("https://nexus.passport.com/rdr/pprdr.asp");
res = req.GetResponse(); (Throws WebException : ReceiveFailure)
Hey, I'm not sure because your code looks different than I expected, but I do have some web request code that I know works quite well in a testharness that I wrote once.
Let me know if you have questions (I just copied it from inside a method, so I hope that I got all of it in there.)
You'll have to write your own logging routines or replace them with writelines or whatever.
[Edited by - BradSnobar on June 14, 2006 8:52:42 PM]
Let me know if you have questions (I just copied it from inside a method, so I hope that I got all of it in there.)
You'll have to write your own logging routines or replace them with writelines or whatever.
string link = "http://www.yahoo.com"; DateTime dtnow = DateTime.Now; //Perform the request for the web page here. try { System.Net.HttpWebRequest myRequest = (System.Net.HttpWebRequest)System.Net.HttpWebRequest.Create(link); // Initialize the WebRequest. myRequest.AllowAutoRedirect = true; myRequest.MaximumAutomaticRedirections = 100; myRequest.MaximumResponseHeadersLength = 1024; using (System.Net.HttpWebResponse myResponse = (System.Net.HttpWebResponse)myRequest.GetResponse()) // Return the response. { try { //Perform validation here. if (myResponse.StatusCode == System.Net.HttpStatusCode.OK) { //Read from the page here. using (Stream receiveStream = myResponse.GetResponseStream()) { try { //Pipe the receiveStream into streamReader to make this a little easier. using (StreamReader sr = new StreamReader(receiveStream, Encoding.UTF8)) { try { //Read the content off of the page with a stream string actualResult = sr.ReadToEnd(); bool result = false; //Validate that some content actually did get returned. if (actualResult.Length > 0) result = true; //Report result if (result == true) Logger.LogSuccess("Passed :: Link successfully requested :: " + string.Format(Logger.LinkPrintFormat, link)); else Logger.LogError("Failed :: Unable to request link :: " + string.Format(Logger.LinkPrintFormat, link)); //Report verification results if (result == true) System.Console.WriteLine("process stuff here"); } finally { sr.Close(); } } } finally { receiveStream.Close(); } } } else Logger.LogError("Failed :: " + link); } catch (Exception ex) { Logger.LogError("Failed :: " + link); Logger.LogError(ex); } finally { if (myResponse != null) myResponse.Close(); // Close the response to free resources. } } //using myResponse } catch (System.Net.WebException ex) { if (ex.Message == "The remote server returned an error: (400) Bad Request.") { Logger.LogError("Failed :: " + link); Logger.LogError(ex.Message); } else { Logger.LogError("Failed :: " + link); Logger.LogError(ex.Message); } } TimeSpan elapsedTime = DateTime.Now.Subtract(dtnow); if (elapsedTime.Seconds > 10) Logger.LogInformation("Elapsed Time: " + elapsedTime.Seconds + " seconds");[Edited by - BradSnobar on June 14, 2006 8:52:42 PM]
Author
Thanks, Ill give it a try :)
One more question though, HttpUtility seems to be a well known class supplied by the System.Web namespace. I cant seem to be able to find it :S
One more question though, HttpUtility seems to be a well known class supplied by the System.Web namespace. I cant seem to be able to find it :S
THe HTTPUtility Class should indeed be in the System.Web namespace. There's only one thing I could think of if it is not there:
You need to add a reference to the System.Web Assembly.
Although I guess you've done this already. If it is an ASP.NET project it should have been added at the project creation by Visual Studio.
You need to add a reference to the System.Web Assembly.
Although I guess you've done this already. If it is an ASP.NET project it should have been added at the project creation by Visual Studio.
Author
Nop, it aint there, haha.
Yes, I added the Web namespace, and I do see that objects from the namespace are indeed there. However, the HttpUtility isnt there. Even when I use the object browser to browse for the class I find it, but I cant find it when typing the actual code.
Its extremely weird.
Yes, I added the Web namespace, and I do see that objects from the namespace are indeed there. However, the HttpUtility isnt there. Even when I use the object browser to browse for the class I find it, but I cant find it when typing the actual code.
Its extremely weird.
This topic is closed to new replies.
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