HttpVersion Classe

Definizione

Spazio dei nomi:

System.Net

Assembly:

System.Net.Primitives.dll

Origine:

HttpVersion.cs

Definisce i numeri di versione HTTP supportati dalle classi HttpWebRequest e HttpWebResponse.

public ref class HttpVersion abstract sealed

public static class HttpVersion

type HttpVersion = class

Public Class HttpVersion

Ereditarietà

Object

HttpVersion

Esempio

L'esempio seguente illustra l'uso di 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

Commenti

La HttpVersion classe definisce le versioni HTTP supportate dalla HttpClient classe. Il numero di versione HTTP viene usato per controllare le funzionalità specifiche della versione di HTTP, ad esempio pipelining e chunking.

Campi

Unknown	Definisce un'istanza di Version per una versione HTTP sconosciuta.
Version10	Definisce un'istanza di Version per HTTP 1.0.
Version11	Definisce un'istanza di Version per HTTP 1.1.
Version20	Definisce un'istanza di Version per HTTP 2.0.
Version30	Definisce un'istanza Version per HTTP 3.0.