ServicePoint.Certificate 属性

定义

命名空间:

System.Net

程序集:

System.Net.ServicePoint.dll

Source:

ServicePoint.cs

获取为此 ServicePoint 对象收到的证书。

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

属性值

X509Certificate

包含为此 ServicePoint 对象接收的安全证书的 X509Certificate 类的实例。

示例

下面的代码示例显示此属性的值。

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()))

注解

谨慎

WebRequest、HttpWebRequest、ServicePoint和 WebClient 已过时，不应将其用于新开发。 请改用 HttpClient。

尽管 ServicePoint 对象可以与 Internet 资源建立多个连接，但它只能维护一个证书。

注意

在 .NET Core 和 .NET 5+ 中，Certificate 属性始终返回 null。 若要访问服务器证书，请使用 ServerCertificateCustomValidationCallback。