asp.net – 如何在捕获httpwebrequest超时后关闭底层连接

System.Net.WebException: The operation has timed-out. at
System.Net.HttpWebRequest.GetResponse()

在我捕获此异常并直接关闭底层http连接后,这可能吗？或者我真的不必这样做,因为我已经将keepalive设置为false？

谢谢.

实际上另一个问题是,如果超时异常总是发生在System.Net.HttpWebRequest.GetResponse(),这是否意味着应用程序正在等待来自远程服务器的响应,并且在超时之前无法获得响应.可能的原因是什么,网络连接不稳定？远程服务器无响应？任何其他可能的原因？

这是代码：

System.Net.HttpWebResponse httpWebResponse = null;
System.IO.Stream stream  = null;
XmlTextReader xmlTextReader  = null;
try
{
    System.Net.HttpWebRequest httpWebRequest = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(request);
    httpWebRequest.ReadWriteTimeout = 10000;
    httpWebRequest.Timeout = 10000;
    httpWebRequest.KeepAlive = false;
    httpWebRequest.Method = "GET";
    httpWebResponse = (System.Net.HttpWebResponse)httpWebRequest.GetResponse();
    stream = httpWebResponse.GetResponseStream();
    xmlTextReader = new  XmlTextReader(stream);
    xmlTextReader.Read();
    xmlDocument.Load(xmlTextReader);
    //Document processing code.
    //...
}
catch
{
    //Catch blcok with error handle
}
finally
{
    if (xmlTextReader != null)
        xmlTextReader.Close();
    if (httpWebResponse != null)
        httpWebResponse.Close();
    if (stream != null)
        stream.Close();
}