就以百度为例吧,但不仅限百度,任何网站应该都可以通过获取webrequest的文件头来取到服务器的响应时间
private string getbaidu()
{
WebRequest request = null;
WebResponse response = null;
WebHeaderCollection headerCollection = null;
string datetime = string.Empty;
try
{
request = WebRequest.Create("http://www.baidu.com");
request.Timeout = 120000;
request.Credentials = CredentialCache.DefaultCredentials;
response = (WebResponse)request.GetResponse();
headerCollection = response.Headers;
foreach (var h in headerCollection.AllKeys)
{ if (h == "Date") { datetime = headerCollection[h]; break; } }
return datetime;
}
catch (Exception ex) { return datetime; }
finally
{
if (request != null)
{ request.Abort(); }
if (response != null)
{ response.Close(); }
if (headerCollection != null)
{ headerCollection.Clear(); }
}
}
