HttpListenerRequest.AcceptTypes Eigenschaft

Definition

Namespace:

System.Net

Assembly:

System.Net.HttpListener.dll

Quelle:

HttpListenerRequest.cs

Ruft die vom Client akzeptierten MIME-Typen ab.

public:
 property cli::array <System::String ^> ^ AcceptTypes { cli::array <System::String ^> ^ get(); };

public string[]? AcceptTypes { get; }

member this.AcceptTypes : string[]

Public ReadOnly Property AcceptTypes As String()

Eigenschaftswert

String[]

Ein String-Array, das die im Accept-Header der Anforderung angegebenen Typnamen enthält, oder null, wenn in der Clientanforderung kein Accept-Header enthalten war.

Beispiele

Im folgenden Codebeispiel wird die Verwendung dieser Eigenschaft veranschaulicht.

public static void ShowRequestProperties1 (HttpListenerRequest request)
{
    // Display the MIME types that can be used in the response.
    string[] types = request.AcceptTypes;
    if (types != null)
    {
        Console.WriteLine("Acceptable MIME types:");
        foreach (string s in types)
        {
            Console.WriteLine(s);
        }
    }
    // Display the language preferences for the response.
    types = request.UserLanguages;
    if (types != null)
    {
        Console.WriteLine("Acceptable natural languages:");
        foreach (string l in types)
        {
            Console.WriteLine(l);
        }
    }

    // Display the URL used by the client.
    Console.WriteLine("URL: {0}", request.Url.OriginalString);
    Console.WriteLine("Raw URL: {0}", request.RawUrl);
    Console.WriteLine("Query: {0}", request.QueryString);

    // Display the referring URI.
    Console.WriteLine("Referred by: {0}", request.UrlReferrer);

    //Display the HTTP method.
    Console.WriteLine("HTTP Method: {0}", request.HttpMethod);
    //Display the host information specified by the client;
    Console.WriteLine("Host name: {0}", request.UserHostName);
    Console.WriteLine("Host address: {0}", request.UserHostAddress);
    Console.WriteLine("User agent: {0}", request.UserAgent);
}

Public Shared Sub ShowRequestProperties1(ByVal request As HttpListenerRequest)
    ' Display the MIME types that can be used in the response.
    Dim types As String() = request.AcceptTypes

    If types IsNot Nothing Then
        Console.WriteLine("Acceptable MIME types:")

        For Each s As String In types
            Console.WriteLine(s)
        Next
    End If

    ' Display the language preferences for the response.
    types = request.UserLanguages

    If types IsNot Nothing Then
        Console.WriteLine("Acceptable natural languages:")

        For Each l As String In types
            Console.WriteLine(l)
        Next
    End If

    ' Display the URL used by the client.
    Console.WriteLine("URL: {0}", request.Url.OriginalString)
    Console.WriteLine("Raw URL: {0}", request.RawUrl)
    Console.WriteLine("Query: {0}", request.QueryString)

    ' Display the referring URI.
    Console.WriteLine("Referred by: {0}", request.UrlReferrer)

    ' Display the HTTP method.
    Console.WriteLine("HTTP Method: {0}", request.HttpMethod)

    ' Display the host information specified by the client.
    Console.WriteLine("Host name: {0}", request.UserHostName)
    Console.WriteLine("Host address: {0}", request.UserHostAddress)
    Console.WriteLine("User agent: {0}", request.UserAgent)
End Sub

Hinweise

Der Accept Header ist eine Zeichenfolge aus durch Leerzeichen getrennten MIME-Typnamen (z. B. ), die die MIME-Typen angeben, image/jpegdie der Client in einer Antwort akzeptieren und verarbeiten möchte. Der */* Eintrag gibt an, dass der Client jeden MIME-Typ akzeptiert. Eine ausführliche Beschreibung des Accept Headers finden Sie unter RFC 2616, verfügbar unter https://www.rfc-editor.org.

Eine vollständige Liste der Anforderungsheader finden Sie in der HttpRequestHeader Enumeration.

Weitere Informationen

• HttpListener
• HttpListenerContext
• HttpListenerResponse