HttpWebRequest.ServicePoint プロパティ

.NET Framework クラス ライブラリ リファレンス

HttpWebRequest.ServicePoint プロパティ

要求に対して使用するサービス ポイントを取得します。

名前空間: System.Net
アセンブリ: System (system.dll 内)
構文

Visual Basic (宣言)

Public ReadOnly Property
 ServicePoint As ServicePoint

Visual Basic (使用法)

Dim instance As HttpWebRequest
Dim value As ServicePoint

value = instance.ServicePoint

C#

public ServicePoint ServicePoint { get; }

C++

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

J#

/** @property */
public ServicePoint get_ServicePoint ()

JScript

public function get ServicePoint
 () : ServicePoint

プロパティ値
インターネット リソースへのネットワーク接続を表す ServicePoint。

解説

要求がリダイレクトされる場合、ServicePoint.Address プロパティは、HttpWebRequest.Address とは異なる場合があります。

Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows CE プラットフォームメモ : 追加のネットワーク伝送が要求されて要求が送信されるまで、このプロパティは null 参照 (Visual Basic では Nothing) です。

使用例

Visual Basic

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 'makeWebRequest

C#

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 ();
    }
}

C++

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();
   }

}

J#

private static void MakeWebRequest(int
 hashCode, String uri) 
    throws InterruptedException
{
    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.get_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.get_MaxIdleTime()));
        Console.WriteLine(("New service point is idle since " 
            + currentServicePoint.get_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 (System.Exception e) {
        Console.WriteLine(("Source : " + e.get_Source()));
        Console.WriteLine(("Message : " + e.get_Message()));
    }
    finally {
        if ( res  != null  ) {
           res.Close();
        }
     }
} //MakeWebRequest

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0、1.0

参照

関連項目
HttpWebRequest クラス
HttpWebRequest メンバ
System.Net 名前空間