HttpListenerResponse.OutputStream Property
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Gets a Stream object to which a response can be written.
public:
property System::IO::Stream ^ OutputStream { System::IO::Stream ^ get(); };
public System.IO.Stream OutputStream { get; }
member this.OutputStream : System.IO.Stream
Public ReadOnly Property OutputStream As Stream
A Stream object to which a response can be written.
This object is closed.
The following code example demonstrates calling this method.
// This example requires the System and System.Net namespaces.
public static string ClientInformation(HttpListenerContext context)
{
System.Security.Principal.IPrincipal user = context.User;
System.Security.Principal.IIdentity id = user.Identity;
if (id == null)
{
return "Client authentication is not enabled for this Web server.";
}
string display;
if (id.IsAuthenticated)
{
display = String.Format("{0} was authenticated using {1}", id.Name,
id.AuthenticationType);
}
else
{
display = String.Format("{0} was not authenticated", id.Name);
}
return display;
}
public static void SimpleListenerWithAuthentication(string[] prefixes)
{
if (!HttpListener.IsSupported)
{
Console.WriteLine ("Windows XP SP2 or Server 2003 is required to use the HttpListener class.");
return;
}
// URI prefixes are required,
// for example "http://contoso.com:8080/index/".
if (prefixes == null || prefixes.Length == 0)
throw new ArgumentException("prefixes");
// Set up a listener.
HttpListener listener = new HttpListener();
foreach (string s in prefixes)
{
listener.Prefixes.Add(s);
}
listener.Start();
// Specify Negotiate as the authentication scheme.
listener.AuthenticationSchemes = AuthenticationSchemes.Negotiate;
Console.WriteLine("Listening...");
// GetContext blocks while waiting for a request.
HttpListenerContext context = listener.GetContext();
HttpListenerRequest request = context.Request;
// Obtain a response object.
HttpListenerResponse response = context.Response;
// Construct a response.
string clientInformation = ClientInformation(context);
byte[] buffer = System.Text.Encoding.UTF8.GetBytes("<HTML><BODY> " + clientInformation + "</BODY></HTML>");
// Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length;
System.IO.Stream output = response.OutputStream;
output.Write(buffer,0,buffer.Length);
output.Close();
listener.Stop();
}
' This example requires the System and System.Net namespaces.
Public Shared Function ClientInformation(ByVal context As HttpListenerContext) As String
Dim user As System.Security.Principal.IPrincipal = context.User
Dim id As System.Security.Principal.IIdentity = user.Identity
If id Is Nothing Then
Return "Client authentication is not enabled for this Web server."
End If
Dim display As String
If id.IsAuthenticated Then
display = String.Format("{0} was authenticated using {1}", id.Name, id.AuthenticationType)
Else
display = String.Format("{0} was not authenticated", id.Name)
End If
Return display
End Function
Public Shared Sub SimpleListenerWithAuthentication(ByVal prefixes As String())
If Not HttpListener.IsSupported Then
Console.WriteLine("Windows XP SP2 or Server 2003 is required to use the HttpListener class.")
Return
End If
' URI prefixes are required,
' for example "http://contoso.com:8080/index/"
If prefixes Is Nothing OrElse prefixes.Length = 0 Then Throw New ArgumentException("prefixes")
Dim listener As HttpListener = New HttpListener()
For Each s As String In prefixes
listener.Prefixes.Add(s)
Next
listener.Start()
' Specify Negotiate as the authentication scheme.
listener.AuthenticationSchemes = AuthenticationSchemes.Negotiate
Console.WriteLine("Listening...")
' GetContext blocks while waiting for a request.
Dim context As HttpListenerContext = listener.GetContext()
Dim request As HttpListenerRequest = context.Request
' Obtain a response object.
Dim response As HttpListenerResponse = context.Response
Dim clientInformationString As String = ClientInformation(context)
Dim buffer As Byte() = System.Text.Encoding.UTF8.GetBytes("<HTML><BODY> " & clientInformationString & "</BODY></HTML>")
' Get a response stream and write the response to it.
response.ContentLength64 = buffer.Length
Dim output As System.IO.Stream = response.OutputStream
output.Write(buffer, 0, buffer.Length)
output.Close()
listener.Stop()
End Sub
The ContentLength64 property must be set explicitly before writing to the returned Stream object.
הערה
Closing the request does not close the stream returned by this property. When you no longer need the stream, you should close it by calling the Close method.
מוצר | גירסאות |
---|---|
.NET | Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 2.0, 2.1 |
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