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

Définition

Récupère le flux qui contient des données de réponse envoyées à partir d'un serveur FTP.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

Retours

Instance Stream accessible en lecture qui contient des données retournées avec la réponse ; sinon, Null si aucune donnée de réponse n'a été retournée par le serveur.A readable Stream instance that contains data returned with the response; otherwise, Null if no response data was returned by the server.

Exceptions

La réponse n'a pas retourné de flux de données.The response did not return a data stream.

Exemples

L’exemple de code suivant illustre l’obtention de flux de réponse pour un ListDirectory demande.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;
}

Remarques

Après avoir lu les données, vous devez fermer le flux.After reading the data, you must close the stream. Le flux est fermé automatiquement lorsque vous fermez le FtpWebResponse objet qui le contient.The stream is automatically closed when you close the FtpWebResponse object that contains it.

Une exception est levée à moins que la méthode de demande est DownloadFile ou ListDirectory.An exception is thrown unless the request method is DownloadFile or ListDirectory.

S’applique à

Voir aussi