WebResponse.ResponseUri 屬性

定義

命名空間:

System.Net

組件:

System.Net.Requests.dll

來源:

WebResponse.cs

在衍生類別中覆寫時，取得對要求實際回應的網際網路資源 URI。

public:
 virtual property Uri ^ ResponseUri { Uri ^ get(); };

public virtual Uri ResponseUri { get; }

member this.ResponseUri : Uri

Public Overridable ReadOnly Property ResponseUri As Uri

屬性值

Uri

Uri 類別的執行個體，它包含對要求實際回應的網際網路資源 URI。

例外狀況

NotSupportedException

當屬性在子代類別中未覆寫時，會嘗試取得或設定該屬性。

範例

下列範例會 ResponseUri 使用 屬性來判斷來源的位置 WebResponse 。

Uri^ ourUri = gcnew Uri( url );

// Create a 'WebRequest' object with the specified url.
WebRequest^ myWebRequest = WebRequest::Create( url );

// Send the 'WebRequest' and wait for response.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Use "ResponseUri" property to get the actual Uri from where the response was attained.
if ( ourUri->Equals( myWebResponse->ResponseUri ) )
{
   Console::WriteLine( "\nRequest Url : {0} was not redirected", url );
}
else
{
   Console::WriteLine( "\nRequest Url : {0} was redirected to {1}", url, myWebResponse->ResponseUri );
}

// Release resources of response object.
myWebResponse->Close();

Uri ourUri = new Uri(url);            

// Create a 'WebRequest' object with the specified url. 
WebRequest myWebRequest = WebRequest.Create(url); 

// Send the 'WebRequest' and wait for response.
WebResponse myWebResponse = myWebRequest.GetResponse(); 

// Use "ResponseUri" property to get the actual Uri from where the response was attained.
if (ourUri.Equals(myWebResponse.ResponseUri))
    Console.WriteLine("\nRequest Url : {0} was not redirected",url);   
else
    Console.WriteLine("\nRequest Url : {0} was redirected to {1}",url,myWebResponse.ResponseUri);   
// Release resources of response object.
myWebResponse.Close();

Dim ourUri As New Uri(url)
' Create a 'WebRequest' object with the specified url. 

Dim myWebRequest As WebRequest = WebRequest.Create(url)

' Send the 'WebRequest' and wait for response.
Dim myWebResponse As WebResponse = myWebRequest.GetResponse()

' "ResponseUri" property is used to get the actual Uri from where the response was attained.
If ourUri.Equals(myWebResponse.ResponseUri) Then
    Console.WriteLine(ControlChars.Cr + "Request Url : {0} was not redirected", url)
Else
    Console.WriteLine(ControlChars.Cr + "Request Url : {0} was redirected to {1}", url, myWebResponse.ResponseUri)
End If 

' Release resources of response object.
myWebResponse.Close()

備註

ResponseUri屬性包含實際提供響應數據的因特網資源 URI。 如果基礎通訊協議允許重新導向要求，此資源可能不是原始要求的 URI。

注意

類別 WebResponse 是類別 abstract 。 運行時間實例的實際行為是由 所WebRequest.GetResponse傳回的WebResponse子系類別所決定。 如需預設值和例外狀況的詳細資訊，請參閱 子系類別的檔，例如 HttpWebResponse 和 FileWebResponse。