ServicePoint.Certificate 屬性

定義

命名空間:

System.Net

組件:

System.Net.ServicePoint.dll

來源:

ServicePoint.cs

取得針對這個 ServicePoint 物件接收的憑證。

public:
 property System::Security::Cryptography::X509Certificates::X509Certificate ^ Certificate { System::Security::Cryptography::X509Certificates::X509Certificate ^ get(); };

public System.Security.Cryptography.X509Certificates.X509Certificate? Certificate { get; }

member this.Certificate : System.Security.Cryptography.X509Certificates.X509Certificate

Public ReadOnly Property Certificate As X509Certificate

屬性值

X509Certificate

X509Certificate 類別的實例，其中包含為此 ServicePoint 物件所接收的安全性憑證。

範例

下列程式代碼範例會顯示這個屬性的值。

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()))

備註

謹慎

WebRequest、HttpWebRequest、ServicePoint和 WebClient 已經過時，您不應該將它們用於新的開發。 請改用 HttpClient。

雖然 ServicePoint 物件可以對因特網資源進行多個連線，但它只能維護一個憑證。

注意

在 .NET Core 和 .NET 5+中，Certificate 屬性一律會傳回 null。 若要存取伺服器憑證，請使用 ServerCertificateCustomValidationCallback。