HttpWebRequest.ServicePoint Properti

Definisi

Ruang nama:

System.Net

Rakitan:

System.Net.Requests.dll

Sumber:

HttpWebRequest.cs

Mendapatkan titik layanan yang akan digunakan untuk permintaan.

public:
 property System::Net::ServicePoint ^ ServicePoint { System::Net::ServicePoint ^ get(); };

public System.Net.ServicePoint ServicePoint { get; }

member this.ServicePoint : System.Net.ServicePoint

Public ReadOnly Property ServicePoint As ServicePoint

Nilai Properti

ServicePoint

ServicePoint yang mewakili koneksi jaringan ke sumber daya Internet.

Contoh

void makeWebRequest( int hashCode, String^ Uri )
{
   HttpWebResponse^ res = nullptr;
   
   // Make sure that the idle time has elapsed, so that a new 
   // ServicePoint instance is created.
   Console::WriteLine( "Sleeping for 2 sec." );
   Thread::Sleep( 2000 );
   try
   {
      
      // Create a request to the passed URI.
      HttpWebRequest^ req = dynamic_cast<HttpWebRequest^>(WebRequest::Create( Uri ));
      Console::WriteLine( "\nConnecting to {0} ............", Uri );
      
      // Get the response object.
      res = dynamic_cast<HttpWebResponse^>(req->GetResponse());
      Console::WriteLine( "Connected.\n" );
      ServicePoint^ currentServicePoint = req->ServicePoint;
      
      // Display new service point properties.
      int currentHashCode = currentServicePoint->GetHashCode();
      Console::WriteLine( "New service point hashcode: {0}", currentHashCode );
      Console::WriteLine( "New service point max idle time: {0}", currentServicePoint->MaxIdleTime );
      Console::WriteLine( "New service point is idle since {0}", currentServicePoint->IdleSince );
      
      // Check that a new ServicePoint instance has been created.
      if ( hashCode == currentHashCode )
            Console::WriteLine( "Service point reused." );
      else
            Console::WriteLine( "A new service point created." );
   }
   catch ( Exception^ e ) 
   {
      Console::WriteLine( "Source : {0}", e->Source );
      Console::WriteLine( "Message : {0}", e->Message );
   }
   finally
   {
      if ( res != nullptr )
            res->Close();
   }

}

private static void makeWebRequest(int hashCode, string Uri)
{
    HttpWebResponse res = null;

    // Make sure that the idle time has elapsed, so that a new
    // ServicePoint instance is created.
    Console.WriteLine("Sleeping for 2 sec.");
    Thread.Sleep(2000);
    try
    {
        // Create a request to the passed URI.
        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(Uri);

        Console.WriteLine("\nConnecting to " + Uri + " ............");

        // Get the response object.
        res = (HttpWebResponse)req.GetResponse();
        Console.WriteLine("Connected.\n");

        ServicePoint currentServicePoint = req.ServicePoint;

        // Display new service point properties.
        int currentHashCode = currentServicePoint.GetHashCode();

        Console.WriteLine("New service point hashcode: " + currentHashCode);
        Console.WriteLine("New service point max idle time: " + currentServicePoint.MaxIdleTime);
        Console.WriteLine("New service point is idle since " + currentServicePoint.IdleSince );

        // Check that a new ServicePoint instance has been created.
        if (hashCode == currentHashCode)
            Console.WriteLine("Service point reused.");
        else
            Console.WriteLine("A new service point created.") ;
    }
    catch (Exception e)
    {
        Console.WriteLine("Source : " + e.Source);
        Console.WriteLine("Message : " + e.Message);
    }
    finally
    {
        if (res != null)
            res.Close();
    }
}

Private Shared Sub makeWebRequest(ByVal hashCode As Integer, ByVal Uri As String)
    Dim res As HttpWebResponse = Nothing

    ' Make sure that the idle time has elapsed, so that a new 
    ' ServicePoint instance is created.
    Console.WriteLine("Sleeping for 2 sec.")
    Thread.Sleep(2000)

    Try
        ' Create a request to the passed URI.
        Dim req As HttpWebRequest = CType(WebRequest.Create(Uri), HttpWebRequest)
        Console.WriteLine((ControlChars.Lf + "Connecting to " + Uri + " ............"))

        ' Get the response object.
        res = CType(req.GetResponse(), HttpWebResponse)
        Console.WriteLine("Connected." + ControlChars.Lf)
        Dim currentServicePoint As ServicePoint = req.ServicePoint

        ' Display new service point properties.
        Dim currentHashCode As Integer = currentServicePoint.GetHashCode()
        Console.WriteLine(("New service point hashcode: " + currentHashCode.ToString()))
        Console.WriteLine(("New service point max idle time: " + currentServicePoint.MaxIdleTime.ToString()))
        Console.WriteLine(("New service point is idle since " + currentServicePoint.IdleSince.ToString()))

        ' Check that a new ServicePoint instance has been created.
        If hashCode = currentHashCode Then
            Console.WriteLine("Service point reused.")
        Else
            Console.WriteLine("A new service point created.")
        End If
    Catch e As Exception
        Console.WriteLine(("Source : " + e.Source))
        Console.WriteLine(("Message : " + e.Message))
    Finally
        If Not (res Is Nothing) Then
            res.Close()
        End If
    End Try
End Sub

Keterangan

Hati

WebRequest, HttpWebRequest, ServicePoint, dan WebClient usang, dan Anda tidak boleh menggunakannya untuk pengembangan baru. Gunakan HttpClient sebagai gantinya.

Properti ServicePoint.Address mungkin berbeda dari HttpWebRequest.Address jika permintaan dialihkan.