HttpListenerResponse.ContentEncoding 属性
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
获取或设置此响应的 OutputStream 的 Encoding。
public:
property System::Text::Encoding ^ ContentEncoding { System::Text::Encoding ^ get(); void set(System::Text::Encoding ^ value); };public System.Text.Encoding? ContentEncoding { get; set; }public System.Text.Encoding ContentEncoding { get; set; }member this.ContentEncoding : System.Text.Encoding with get, setPublic Property ContentEncoding As Encoding属性值
适合处理 Encoding 属性中的数据的 OutputStream 对象，如果没有指定编码，则为 null。
示例
下面的代码示例演示如何使用此属性。
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
注解
Encoding对象可用于将字节序列转换为字符集 (代码页) ，将字符转换为字节序列。
