HttpListenerResponse.CopyFrom(HttpListenerResponse) Methode

  • Referenz

Definition

Namespace:
System.Net
Assembly:
System.Net.HttpListener.dll
Assembly:
System.dll
Assembly:
netstandard.dll
Quelle:
HttpListenerResponse.Managed.cs
Quelle:
HttpListenerResponse.Managed.cs
Quelle:
HttpListenerResponse.Managed.cs

Kopiert Eigenschaften aus der angegebenen HttpListenerResponse in diese Antwort.

public:
 void CopyFrom(System::Net::HttpListenerResponse ^ templateResponse);
public void CopyFrom (System.Net.HttpListenerResponse templateResponse);
member this.CopyFrom : System.Net.HttpListenerResponse -> unit
Public Sub CopyFrom (templateResponse As HttpListenerResponse)

Parameter

templateResponse
HttpListenerResponse

Die zu kopierende HttpListenerResponse-Instanz.

Beispiele

Im folgenden Codebeispiel wird das Erstellen einer Antwort durch Kopieren einer Vorlagenantwort veranschaulicht.

static string message403;
static HttpListenerResponse preMade403Response;
static void SendBadCertificateResponse(HttpListenerResponse response)
{
    if (preMade403Response == null)
    {
        // Set up an authentication error response template.
        response.StatusCode = (int)HttpStatusCode.Forbidden;
        response.StatusDescription = "403 Forbidden";
        response.ProtocolVersion = new Version("1.1");
        response.SendChunked = false;

        preMade403Response = response;
    }
    else
    {
        response.CopyFrom(preMade403Response);
    }

    // The response body cannot be saved in the template.

    StringBuilder message = new StringBuilder();
    message.Append("<HTML><BODY>");
    message.Append("<p> Error message 403: Access is denied due to a missing or invalid client certificate.</p>");
    message.Append("</BODY></HTML>");
    message403 = message.ToString();

    // Turn the error message into a byte array using the
    // encoding from the response when present.
    System.Text.Encoding encoding = response.ContentEncoding;
    if (encoding == null)
    {
        encoding = System.Text.Encoding.UTF8;
        response.ContentEncoding = encoding;
    }

    byte[] buffer = encoding.GetBytes(message403);
    response.ContentLength64 = buffer.Length;
    // Write the error message.
    System.IO.Stream stream = response.OutputStream;
    stream.Write(buffer, 0, buffer.Length);
    // Send the response.
    response.Close();
}

Private Shared message403 As String
Private Shared preMade403Response As HttpListenerResponse
Private Shared Sub SendBadCertificateResponse(ByVal response As HttpListenerResponse)
    
    If preMade403Response Is Nothing Then
        ' Set up an authentication error response template.
        response.StatusCode = Cint(HttpStatusCode.Forbidden)
        response.StatusDescription = "403 Forbidden"
        response.ProtocolVersion = New Version("1.1")
        response.SendChunked = False
    Else
        response.CopyFrom(preMade403Response) 
    End If
    
    ' The response body cannot be saved in the template.
    Dim message As New StringBuilder()
    message.Append("<HTML><BODY>")
    message.Append("<p> Error message 403: Access is denied due to a missing or invalid client certificate.</p>")
    message.Append("</BODY></HTML>")
    message403 = message.ToString()

    ' Turn the error message into a byte array using the 
    ' encoding from the response when present.
    Dim encoding As System.Text.Encoding = response.ContentEncoding
    If encoding Is Nothing Then
        encoding = System.Text.Encoding.UTF8
        response.ContentEncoding = encoding
    End If

    Dim buffer() As Byte = encoding.GetBytes(message403)
    response.ContentLength64 = buffer.Length
    ' Write the error message.
    Dim stream As System.IO.Stream = response.OutputStream
    stream.Write(buffer, 0, buffer.Length)
    ' Send the response.
    response.Close()
End Sub

Hinweise

Wenn Sie viele Eigenschaften regelmäßig von ihren Standardwerten in einen festen Satz neuer Werte ändern, ist es praktisch, eine HttpListenerResponse instance als Vorlage zu verwenden. Passen Sie die Vorlagenantwort einmal an, und rufen CopyFrom Sie die -Methode auf, anstatt jede Antwort separat zu konfigurieren, um eine neue Antwort basierend auf Eigenschaftswerten in der Vorlagenantwort zu konfigurieren.

Die folgenden Eigenschaften werden aus templateResponse der aktuellen instance kopiert.

Gilt für:

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