IWebProxy.GetProxy(Uri) Méthode

Définition

Espace de noms:

System.Net

Assembly:

System.Net.Primitives.dll

Retourne l'URI d'un proxy.

public:
 Uri ^ GetProxy(Uri ^ destination);

public Uri? GetProxy (Uri destination);

abstract member GetProxy : Uri -> Uri

Public Function GetProxy (destination As Uri) As Uri

Paramètres

destination

Uri

Uri qui spécifie la ressource Internet demandée.

Retours

Uri

Une Uri instance qui contient l’URI du proxy utilisé pour contacter destination; sinon null ou destination lui-même.

Exemples

L’exemple suivant utilise la GetProxy méthode pour renvoyer l’URI que le HttpClient utilise pour accéder à la ressource Internet.

WebProxy_Interface^ webProxy_Interface = gcnew WebProxy_Interface( gcnew Uri( "http://proxy.example.com" ) );

webProxy_Interface->Credentials = gcnew NetworkCredential( "myusername", "mypassword" );

Console::WriteLine( "The web proxy is : {0}", webProxy_Interface->GetProxy( gcnew Uri( "http://www.contoso.com" ) ) );

// Check if the webproxy can ne bypassed for the site "http://www.contoso.com".
if ( webProxy_Interface->IsBypassed( gcnew Uri( "http://www.contoso.com" ) ) )
{
   Console::WriteLine( "Web Proxy is by passed" );
}
else
{
   Console::WriteLine( "Web Proxy is not by passed" );
}

WebProxy_Interface webProxy_Interface = new WebProxy_Interface(new Uri("http://proxy.example.com"));

webProxy_Interface.Credentials = new NetworkCredential("myusername", "mypassword");

Uri testUri = new Uri("http://www.contoso.com");

// Determine whether the Web proxy can be bypassed for the site "http://www.contoso.com".
if(webProxy_Interface.IsBypassed(testUri))
{
    Console.WriteLine("Web Proxy is by passed");
}
else
{
    Uri? webProxyServer = webProxy_Interface.GetProxy(testUri);
    // In general, we wouldn't expect the condition (`webProxyServer! == testUri`) true here, if  IsBypassed returns `false`.
    // However, technically our interface can allow that.
    if (webProxyServer is null || webProxyServer! == testUri)
    {
        Console.WriteLine("Web proxy is bypassed");
    }
    else
    {
        Console.WriteLine("Web proxy is not bypassed");
        Console.WriteLine($"The web proxy is: {webProxyServer!}");
    }
}

 Public Shared Sub Main()
     Dim webProxy_Interface As New WebProxy_Interface(New Uri("http://proxy.example.com"))
     
     webProxy_Interface.Credentials = New NetworkCredential("myusername", "mypassword")
     
     Console.WriteLine("The web proxy is : {0}", webProxy_Interface.GetProxy(New Uri("http://www.contoso.com")))
     
     'Determine whether the Web proxy can be bypassed for the site "http://www.contoso.com".
 console.writeline("For the Uri http://www.contoso.com , the ")
     If webProxy_Interface.IsBypassed(New Uri("http://www.contoso.com")) Then
         Console.WriteLine("webproxy is by passed")
     Else
         Console.WriteLine("webproxy is not bypassed")
     End If 
 End Sub

Remarques

La GetProxy méthode retourne l’URI du serveur proxy qui gère les requêtes à la ressource Internet spécifiée dans le destination paramètre . Si la GetProxy méthode retourne null ou destination elle-même, le proxy n’est pas utilisé pour contacter l’hôte et la demande est transmise directement au serveur.