Error while executing httpwebrequest.getrequeststream.

Question

 

  We migrated code from vb to vb.net. In vb msxml was used to make http requests and  in .net we changed to httpwebrequest. With this new implementation an exception is thrown while executing httpwebrequest.getrequeststream.

The exception code is 10060 and the exception message is A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

 

This exception occurs intermittently and not always.

Please find below the code snippet which i've used to achieve the result

 

        Dim HttpRequest As HttpWebRequest

        Dim HttpResponse As HttpWebResponse

        Dim streamReader As StreamReader

        Dim streamWriter As StreamWriter

 

        HttpRequest = HttpWebRequest.Create(strUrl)

        HttpRequest.Method = WebRequestMethods.Http.Post

        HttpRequest.ContentType = "text/xml"

        HttpRequest.Timeout = 999999999

        HttpRequest.ContentLength = Str(Len(temp))

 

        streamWriter = New StreamWriter(HttpRequest.GetRequestStream)

        streamWriter.Write(temp)

        streamWriter.Flush()

        streamWriter.Close()

        HttpRequest.GetRequestStream.Close()

 

        HttpResponse = CType(HttpRequest.GetResponse, HttpWebResponse)

 

        streamReader = New StreamReader(HttpResponse.GetResponseStream)

        temp = streamReader.ReadToEnd

        streamReader.Close()

        HttpResponse.Close()

 

Please advice on a resolution

Thanks,
Anil

Answer 1

Hi Anil,

The error information means there are some network connection faults. In this situation you need to use try/catch block to handle the exception and set up connection again.

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Best regards,
Riquel
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