HttpVersion Classe

Définition

Espace de noms:

System.Net

Assembly:

System.Net.Primitives.dll

Source:

HttpVersion.cs

Définit les numéros de version HTTP qui sont pris en charge par les classes HttpWebRequest et HttpWebResponse.

public ref class HttpVersion abstract sealed

public static class HttpVersion

type HttpVersion = class

Public Class HttpVersion

Héritage

Object

HttpVersion

Exemples

L'exemple suivant montre l'utilisation de HttpVersion.

// HttpClient lifecycle management best practices:
// https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
HttpClient^ client = gcnew HttpClient();

HttpRequestMessage^ request = new HttpRequestMessage(HttpMethod::Get, "http://www.microsoft.com");
Console::WriteLine("Default HTTP request version is {0}", request.Version);

request.Version = HttpVersion.Version10;
Console::WriteLine("Request version after assignment is {0}", request.Version);

HttpResponseMessage^ response = client->Send(request);
Console::WriteLine("Response HTTP version {0}", response.Version);

// HttpClient lifecycle management best practices:
// https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
using HttpClient client = new HttpClient();

using HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com");
Console.WriteLine("Default HTTP request version is {0}", request.Version);

request.Version = HttpVersion.Version10;
Console.WriteLine("Request version after assignment is {0}", request.Version);

using HttpResponseMessage response = client.Send(request);
Console.WriteLine("Response HTTP version {0}", response.Version);

' HttpClient lifecycle management best practices:
' https://learn.microsoft.com/dotnet/fundamentals/networking/http/httpclient-guidelines#recommended-use
Using client As New HttpClient()
    Using request As New HttpRequestMessage(HttpMethod.Get, "http://www.microsoft.com")
        Console.WriteLine("Default HTTP request version is {0}", request.Version)

        request.Version = HttpVersion.Version10
        Console.WriteLine("Request version after assignment is {0}", request.Version)

        Using response As HttpResponseMessage = client.Send(request)
            Console.WriteLine("Response HTTP version {0}", response.Version)
        End Using
    End Using
End Using

Remarques

La HttpVersion classe définit les versions HTTP prises en charge par la HttpClient classe . Le numéro de version HTTP est utilisé pour contrôler les fonctionnalités propres à la version de HTTP, telles que le pipelining et le segmentage.

Champs

Unknown	Définit une instance de Version pour une version HTTP inconnue.
Version10	Définit une instance de Version pour HTTP 1.0.
Version11	Définit une instance de Version pour HTTP 1.1.
Version20	Définit une instance de Version pour HTTP 2.0.
Version30	Définit une Version instance pour HTTP 3.0.