Question

我有运行了一段时间的代码，没有任何问题...我遍历项目列表，并从网页上读取相应的数据，以查看是否有任何更改。然后，我解析网页，并通过电子邮件等通知。

这是我阅读网页代码的基本语法：

   Dim req As System.Net.HttpWebRequest = System.Net.HttpWebRequest.Create(targetURI)


    req.Method = "POST"
    req.ContentType = "application/x-www-form-urlencoded"
    req.KeepAlive = False

    req.UseDefaultCredentials = True
    req.UserAgent = "mozilla"
    req.ProtocolVersion = HttpVersion.Version10

    req.AllowAutoRedirect = True
    req.MaximumAutomaticRedirections = 10
    req.Timeout = CType(New TimeSpan(0, 0, 60 * 8).TotalMilliseconds, Integer)

    strNewValue = param


    Try
        Dim stOut As New System.IO.StreamWriter(req.GetRequestStream(), System.Text.Encoding.ASCII)
        stOut.Write(strNewValue)
        stOut.Close()

    Catch ex As Exception
        Return "500 Error"
    End Try

    Try
        Dim stIn As New System.IO.StreamReader(req.GetResponse().GetResponseStream())
        StrResponse = stIn.ReadToEnd()

        stIn.Close()

    Catch ex As Exception
        System.Web.HttpContext.Current.Response.Write("Error:" & ex.Message)
    End Try

    req = Nothing

    Return StrResponse

但是，最近，几乎每次代码运行时，我都开始在响应中收到“操作已超时”错误。当代码正常运行几年后，什么会触发此错误？

有什么想法吗？请告知，

-SAbow

该操作在解析网页时超时错误

0 个答案: