使用WebRequest
我想知道我是否得到了
“302暂时移动”
响应而不是自动获取新网址。
答案 0 :(得分:32)
如果您想检测重定向响应,而不是自动创建WebRequest
,并将AllowAutoRedirect
属性设置为false
:
HttpWebRequest request = WebRequest.Create(someUrl) as HttpWebRequest;
request.AllowAutoRedirect = false;
HttpWebResponse response = request.GetResponse() as HttpWebResponse;
if (response.StatusCode == HttpStatusCode.Redirect ||
response.StatusCode == HttpStatusCode.MovedPermanently)
{
// Do something here...
string newUrl = response.Headers["Location"];
}
答案 1 :(得分:3)
像这样:
HttpWebResponse response;
int code = (int) response.StatusCode;
代码应为
HttpStatusCode.TemporaryRedirect
答案 2 :(得分:1)
VB Net Code
Function GetRealUrl(someUrl As String) As String
Dim req As HttpWebRequest = TryCast(WebRequest.Create(someUrl), HttpWebRequest)
req.AllowAutoRedirect = False
Dim response As HttpWebResponse = TryCast(req.GetResponse(), HttpWebResponse)
If response.StatusCode = HttpStatusCode.Redirect OrElse response.StatusCode = HttpStatusCode.MovedPermanently Then
' Do something...
Dim newUrl As String = response.Headers("Location")
getrealurl = newUrl
Else
getrealurl = someUrl
End If
End Function