ServicePoint.Certificate プロパティ

定義

この ServicePoint オブジェクトに対して受信した証明書を取得します。

public:
 property System::Security::Cryptography::X509Certificates::X509Certificate ^ Certificate { System::Security::Cryptography::X509Certificates::X509Certificate ^ get(); };
public System.Security.Cryptography.X509Certificates.X509Certificate? Certificate { get; }
public System.Security.Cryptography.X509Certificates.X509Certificate Certificate { get; }
member this.Certificate : System.Security.Cryptography.X509Certificates.X509Certificate
Public ReadOnly Property Certificate As X509Certificate

プロパティ値

この ServicePoint オブジェクトに対して受信したセキュリティ証明書を含む X509Certificate クラスのインスタンス。

次のコード例では、このプロパティの値を表示します。

if ( sp->Certificate == nullptr )
   Console::WriteLine( "Certificate = (null)" );
else
   Console::WriteLine( "Certificate = {0}", sp->Certificate );

if ( sp->ClientCertificate == nullptr )
   Console::WriteLine( "Client Certificate = (null)" );
else
   Console::WriteLine( "Client Certificate = {0}", sp->ClientCertificate );

Console::WriteLine( "ProtocolVersion = {0}", sp->ProtocolVersion->ToString() );
Console::WriteLine( "SupportsPipelining = {0}", sp->SupportsPipelining );
if (sp.Certificate == null)
    Console.WriteLine("Certificate = (null)");
else
    Console.WriteLine("Certificate = " + sp.Certificate.ToString());

if (sp.ClientCertificate == null)
    Console.WriteLine("ClientCertificate = (null)");
else
    Console. WriteLine("ClientCertificate = " + sp.ClientCertificate.ToString());

Console.WriteLine("ProtocolVersion = " + sp.ProtocolVersion.ToString());
Console.WriteLine("SupportsPipelining = " + sp.SupportsPipelining);
If sp.Certificate Is Nothing Then
    Console.WriteLine("Certificate = (null)")
Else
    Console.WriteLine(("Certificate = " + sp.Certificate.ToString()))
End If

If sp.ClientCertificate Is Nothing Then
    Console.WriteLine("ClientCertificate = (null)")
Else
    Console.WriteLine(("ClientCertificate = " + sp.ClientCertificate.ToString()))
End If

Console.WriteLine("ProtocolVersion = " + sp.ProtocolVersion.ToString())
Console.WriteLine(("SupportsPipelining = " + sp.SupportsPipelining.ToString()))

注釈

注意

WebRequestHttpWebRequestServicePointWebClient は廃止されており、新しい開発には使用しないでください。 代わりに HttpClient を使用してください。

ServicePoint オブジェクトはインターネット リソースに複数の接続を行うことができますが、保持できる証明書は 1 つだけです。

手記

.NET Core および .NET 5 以降では、Certificate プロパティは常に null を返します。 サーバー証明書にアクセスするには、ServerCertificateCustomValidationCallbackを使用します。

適用対象