HttpWebResponse.ProtocolVersion Vlastnost

Definice

Obor názvů:

System.Net

Sestavení:

System.Net.Requests.dll

Sestavení:

System.dll

Sestavení:

netstandard.dll

Získá verzi protokolu HTTP, který se používá v odpovědi.

public:
 property Version ^ ProtocolVersion { Version ^ get(); };

public Version ProtocolVersion { get; }

member this.ProtocolVersion : Version

Public ReadOnly Property ProtocolVersion As Version

Hodnota vlastnosti

Version

Odpověď Version obsahuje verzi protokolu HTTP.

Výjimky

ObjectDisposedException

Aktuální instance byla odstraněna.

Příklady

Tento příklad vytvoří HttpWebRequest a dotazuje pro HttpWebResponse. Příklad pak zkontroluje, jestli server reaguje se stejnou verzí.

Uri^ ourUri = gcnew Uri( url );
// Creates an HttpWebRequest for the specified URL.
HttpWebRequest^ myHttpWebRequest = (HttpWebRequest^)( WebRequest::Create( ourUri ) );
myHttpWebRequest->ProtocolVersion = HttpVersion::Version10;
// Sends the HttpWebRequest and waits for the response.
HttpWebResponse^ myHttpWebResponse = (HttpWebResponse^)( myHttpWebRequest->GetResponse() );
// Ensures that only Http/1.0 responses are accepted.
if ( myHttpWebResponse->ProtocolVersion != HttpVersion::Version10 )
{
   Console::WriteLine( "\nThe server responded with a version other than Http/1.0" );
}
else if ( myHttpWebResponse->StatusCode == HttpStatusCode::OK )
{
   Console::WriteLine( "\nRequest sent using version Http/1.0. Successfully received response with version HTTP/1.0 " );
}
// Releases the resources of the response.
myHttpWebResponse->Close();

Uri ourUri = new Uri(url);
    // Creates an HttpWebRequest for the specified URL.
    HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(ourUri);
    myHttpWebRequest.ProtocolVersion = HttpVersion.Version10;
    // Sends the HttpWebRequest and waits for the response.
    HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse();
    // Ensures that only Http/1.0 responses are accepted.
    if(myHttpWebResponse.ProtocolVersion != HttpVersion.Version10)
        Console.WriteLine("\nThe server responded with a version other than Http/1.0");
    else
    if (myHttpWebResponse.StatusCode == HttpStatusCode.OK)
        Console.WriteLine("\nRequest sent using version Http/1.0. Successfully received response with version HTTP/1.0 ");
    // Releases the resources of the response.
    myHttpWebResponse.Close();

Dim ourUri As New Uri(url)
' Creates an HttpWebRequest with the specified URL. 
Dim myHttpWebRequest As HttpWebRequest = CType(WebRequest.Create(ourUri), HttpWebRequest)
myHttpWebRequest.ProtocolVersion = HttpVersion.Version10
' Sends the request and waits for the response.
Dim myHttpWebResponse As HttpWebResponse = CType(myHttpWebRequest.GetResponse(), HttpWebResponse)
'The ProtocolVersion property is used to ensure that only Http/1.0 responses are accepted. 
If myHttpWebResponse.ProtocolVersion Is HttpVersion.Version10 Then
    Console.WriteLine(ControlChars.NewLine + "The server responded with a version other than Http/1.0")
Else
    If myHttpWebResponse.StatusCode = HttpStatusCode.OK Then
        Console.WriteLine(ControlChars.NewLine + "Request sent using version HTTP/1.0. Successfully received response with version Http/1.0 ")
    End If
End If
' Releases the resources of the response.
myHttpWebResponse.Close()

Poznámky

Vlastnost ProtocolVersion obsahuje číslo verze protokolu HTTP odpovědi odeslané internetovým prostředkem.