WebException.Response Property

Definition

Получает ответ, возвращенный удаленным узлом.Gets the response that the remote host returned.

public:
 property System::Net::WebResponse ^ Response { System::Net::WebResponse ^ get(); };
public System.Net.WebResponse Response { get; }
member this.Response : System.Net.WebResponse
Public ReadOnly Property Response As WebResponse

Property Value

WebResponse

Если ответ доступен из интернет-ресурсов, экземпляр WebResponse, содержащий отклик из интернет-ресурса, в противном случае — null.If a response is available from the Internet resource, a WebResponse instance that contains the error response from an Internet resource; otherwise, null.

Examples

В следующем примере проверяется свойство Status и выводится на консоль StatusCode и StatusDescription базового экземпляра HttpWebResponse.The following example checks the Status property and prints to the console the StatusCode and StatusDescription of the underlying HttpWebResponse instance.

try
{
   // Create a web request for an unknown server (this raises the WebException).
   HttpWebRequest^ myHttpWebRequest = (HttpWebRequest^)(WebRequest::Create( "http://unknown.unknown.com" ));
   
   // Get the associated response for the above request.
   HttpWebResponse^ myHttpWebResponse = (HttpWebResponse^)(myHttpWebRequest->GetResponse());
   myHttpWebResponse->Close();
}
catch ( WebException^ e ) 
{
   Console::WriteLine( "This program is expected to throw WebException on successful run." +
      "\n\nException Message : " + e->Message );
   if ( e->Status == WebExceptionStatus::ProtocolError )
   {
      Console::WriteLine( "Status Code: {0}", ( (HttpWebResponse^)(e->Response) )->StatusCode );
      Console::WriteLine( "Status Description: {0}", ( (HttpWebResponse^)(e->Response) )->StatusDescription );
   }
}
catch ( Exception^ e ) 
{
   Console::WriteLine( e->Message );
}
try {
   // Create a web request for an invalid site. Substitute the "invalid site" strong in the Create call with a invalid name.
     HttpWebRequest myHttpWebRequest = (HttpWebRequest) WebRequest.Create("invalid site");

    // Get the associated response for the above request.
     HttpWebResponse myHttpWebResponse = (HttpWebResponse) myHttpWebRequest.GetResponse();
    myHttpWebResponse.Close();
}
catch(WebException e) {
    Console.WriteLine("This program is expected to throw WebException on successful run."+
                        "\n\nException Message :" + e.Message);
    if(e.Status == WebExceptionStatus.ProtocolError) {
        Console.WriteLine("Status Code : {0}", ((HttpWebResponse)e.Response).StatusCode);
        Console.WriteLine("Status Description : {0}", ((HttpWebResponse)e.Response).StatusDescription);
    }
}
catch(Exception e) {
    Console.WriteLine(e.Message);
}
 Try
     'Create a web request for an invalid site. Substitute the "invalid site" strong in the Create call with a invalid name.
     Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create("invalid site"), HttpWebRequest)
     
     'Get the associated response for the above request.
     Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
     myHttpWebResponse.Close()
 Catch e As WebException
     Console.WriteLine(e.Message)
     
      If e.Status = WebExceptionStatus.ProtocolError Then
         Console.WriteLine("Status Code : {0}", CType(e.Response, HttpWebResponse).StatusCode)
         Console.WriteLine("Status Description : {0}", CType(e.Response, HttpWebResponse).StatusDescription)
     End If

Catch e As Exception
     Console.WriteLine(e.Message)
 End Try

Remarks

Некоторые Интернет-протоколы, такие как HTTP, возвращают допустимые ответы, указывающие на то, что произошла ошибка на уровне протокола.Some Internet protocols, such as HTTP, return otherwise valid responses indicating that an error has occurred at the protocol level. Когда ответ на запрос в Интернете указывает на ошибку, WebRequest.GetResponse устанавливает для свойства Status значение WebExceptionStatus.ProtocolError и предоставляет WebResponse, содержащий сообщение об ошибке, в Response свойстве WebException, которое было выдано.When the response to an Internet request indicates an error, WebRequest.GetResponse sets the Status property to WebExceptionStatus.ProtocolError and provides the WebResponse that contains the error message in the Response property of the WebException that was thrown. Приложение может проверить WebResponse, чтобы определить фактическую ошибку.The application can examine the WebResponse to determine the actual error.

Applies to