FtpWebResponse.GetResponseStream FtpWebResponse.GetResponseStream FtpWebResponse.GetResponseStream FtpWebResponse.GetResponseStream Method

Definition

Ruft den Stream ab, der von einem FTP-Server gesendete Antwortdaten enthält.Retrieves the stream that contains response data sent from an FTP server.

public:
 override System::IO::Stream ^ GetResponseStream();
public override System.IO.Stream GetResponseStream ();
override this.GetResponseStream : unit -> System.IO.Stream
Public Overrides Function GetResponseStream () As Stream

Gibt zurück

Eine lesbare Stream-Instanz, die die mit der Antwort zurückgegebenen Daten enthält. Andernfalls Null, wenn vom Server keine Antwortdaten zurückgegeben wurden.A readable Stream instance that contains data returned with the response; otherwise, Null if no response data was returned by the server.

Ausnahmen

Die Antwort hat keinen Datenstream zurückgegeben.The response did not return a data stream.

Beispiele

Im folgenden Codebeispiel wird veranschaulicht, der Antwortstream für eine ListDirectory Anforderung.The following code example demonstrates getting the response stream for a ListDirectory request.

static bool ListFilesOnServer( Uri^ serverUri )
{
   // The serverUri should start with the ftp:// scheme.
   if ( serverUri->Scheme != Uri::UriSchemeFtp )
   {
      return false;
   }

   // Get the object used to communicate with the server.
   FtpWebRequest^ request = dynamic_cast<FtpWebRequest^>(WebRequest::Create( serverUri ));
   request->Method = WebRequestMethods::Ftp::ListDirectory;

   // Get the ServicePoint object used for this request, and limit it to one connection.
   // In a real-world application you might use the default number of connections (2),
   // or select a value that works best for your application.
   ServicePoint^ sp = request->ServicePoint;
   Console::WriteLine( "ServicePoint connections = {0}.", sp->ConnectionLimit );
   sp->ConnectionLimit = 1;
   FtpWebResponse^ response = dynamic_cast<FtpWebResponse^>(request->GetResponse());

   // The following streams are used to read the data returned from the server.
   Stream^ responseStream = nullptr;
   StreamReader^ readStream = nullptr;
   try
   {
      responseStream = response->GetResponseStream();
      readStream = gcnew StreamReader( responseStream,System::Text::Encoding::UTF8 );
      if ( readStream != nullptr )
      {
         // Display the data received from the server.
         Console::WriteLine( readStream->ReadToEnd() );
      }

      Console::WriteLine( "List status: {0}", response->StatusDescription );
   }
   finally
   {
      if ( readStream != nullptr )
      {
         readStream->Close();
      }

      if ( response != nullptr )
      {
         response->Close();
      }
   }

   return true;
}
public static bool ListFilesOnServer(Uri serverUri)
{
    // The serverUri should start with the ftp:// scheme.
    if (serverUri.Scheme != Uri.UriSchemeFtp)
    {
        return false;
    }
    // Get the object used to communicate with the server.
    FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);
    request.Method = WebRequestMethods.Ftp.ListDirectory;
    
    // Get the ServicePoint object used for this request, and limit it to one connection.
    // In a real-world application you might use the default number of connections (2),
    // or select a value that works best for your application.
    
    ServicePoint sp = request.ServicePoint;
    Console.WriteLine("ServicePoint connections = {0}.", sp.ConnectionLimit);
    sp.ConnectionLimit = 1;
    
    FtpWebResponse response = (FtpWebResponse) request.GetResponse();
     
    // The following streams are used to read the data returned from the server.
    Stream responseStream = null;
    StreamReader readStream = null;
    try
    {
        responseStream = response.GetResponseStream(); 
        readStream = new StreamReader(responseStream, System.Text.Encoding.UTF8);

        if (readStream != null)
        {
            // Display the data received from the server.
            Console.WriteLine(readStream.ReadToEnd());
        } 
        Console.WriteLine("List status: {0}",response.StatusDescription);            
    }
    finally
    {
        if (readStream != null)
        {
            readStream.Close();
        }
        if (response != null)
        {
            response.Close();
        }
    }
   
    return true;
}

Hinweise

Nachdem die Daten gelesen werden, müssen Sie den Stream schließen.After reading the data, you must close the stream. Der Stream wird automatisch geschlossen, wenn Sie schließen die FtpWebResponse -Objekts an.The stream is automatically closed when you close the FtpWebResponse object that contains it.

Eine Ausnahme ausgelöst, sofern die Anforderungsmethode DownloadFile oder ListDirectory.An exception is thrown unless the request method is DownloadFile or ListDirectory.

Gilt für:

Siehe auch