HttpListener.IsSupported Properti
Definisi
Penting
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Mendapatkan nilai yang menunjukkan apakah HttpListener dapat digunakan dengan sistem operasi saat ini.
public:
static property bool IsSupported { bool get(); };
public static bool IsSupported { get; }
static member IsSupported : bool
Public Shared ReadOnly Property IsSupported As Boolean
Nilai Properti
true
di semua platform.
Contoh
Contoh kode berikut menunjukkan penggunaan IsSupported properti untuk mendeteksi apakah HttpListener objek dapat digunakan dengan sistem operasi saat ini.
// This example requires the System and System.Net namespaces.
public static void SimpleListenerExample(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");
// Create a listener.
HttpListener listener = new HttpListener();
// Add the prefixes.
foreach (string s in prefixes)
{
listener.Prefixes.Add(s);
}
listener.Start();
Console.WriteLine("Listening...");
// Note: The GetContext method 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 responseString = "<HTML><BODY> Hello world!</BODY></HTML>";
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
// 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);
// You must close the output stream.
output.Close();
listener.Stop();
}
Public Shared Sub SimpleListenerExample(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 Or prefixes.Length = 0 Then
Throw New ArgumentException("prefixes")
End If
' Create a listener
Dim listener = New HttpListener()
For Each s As String In prefixes
listener.Prefixes.Add(s)
Next
listener.Start()
Console.WriteLine("Listening...")
' Note: The GetContext method blocks while waiting for a request.
Dim context As HttpListenerContext = listener.GetContext()
Console.WriteLine("Listening...")
' Obtain a response object
Dim request As HttpListenerRequest = context.Request
' Construct a response.
Dim response As HttpListenerResponse = context.Response
Dim responseString As String = "<HTML><BODY> Hello world!</BODY></HTML>"
Dim buffer As Byte() = System.Text.Encoding.UTF8.GetBytes(responseString)
' 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)
'You must close the output stream.
output.Close()
listener.Stop()
End Sub
Berlaku untuk
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