HttpListenerResponse.Cookies Properti

Referensi

Definisi

Ruang nama:: System.Net

Rakitan:: System.Net.HttpListener.dll

Rakitan:: System.dll

Rakitan:: netstandard.dll

Sumber:: HttpListenerResponse.cs

Sumber:: HttpListenerResponse.cs

Sumber:: HttpListenerResponse.cs

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Mendapatkan atau mengatur koleksi cookie yang dikembalikan dengan respons.

public:
 property System::Net::CookieCollection ^ Cookies { System::Net::CookieCollection ^ get(); void set(System::Net::CookieCollection ^ value); };

public System.Net.CookieCollection Cookies { get; set; }

member this.Cookies : System.Net.CookieCollection with get, set

Public Property Cookies As CookieCollection

Nilai Properti

CookieCollection

yang CookieCollection berisi cookie untuk menyertai respons. Koleksi kosong jika tidak ada cookie yang ditambahkan ke respons.

Contoh

Contoh kode berikut memeriksa permintaan cookie, dan mengembalikan cookie baru dengan respons jika permintaan tidak memilikinya.

// This example requires the System and System.Net namespaces.

public static string NextCustomerID()
{
    // A real-world application would do something more robust
    // to ensure uniqueness.
    return DateTime.Now.ToString();
}
public static void SimpleListenerCookieExample(string[] prefixes)
{
    // Create a listener.
    HttpListener listener = new HttpListener();
    // Add the prefixes.
    foreach (string s in prefixes)
    {
        listener.Prefixes.Add(s);
    }
    listener.IgnoreWriteExceptions = true;
    listener.Start();
    Console.WriteLine("Listening...");
    // Note: The GetContext method blocks while waiting for a request.
    HttpListenerContext context = listener.GetContext();
    HttpListenerRequest request = context.Request;
    string customerID = null;

    // Did the request come with a cookie?
    Cookie cookie = request.Cookies["ID"];
    if (cookie != null)
    {
         customerID=cookie.Value;
    }
    if (customerID !=null)
    {
          Console.WriteLine("Found the cookie!");
    }
    // Get the response object.
    HttpListenerResponse response = context.Response;
    // If they didn't provide a cookie containing their ID, give them one.
    if (customerID == null)
    {
        customerID = NextCustomerID();
        Cookie cook = new Cookie("ID", customerID );
        response.AppendCookie (cook);
    }
    // Construct a response.
    string responseString = "<HTML><BODY> Hello " + customerID + "!</BODY></HTML>";
    byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
    // Get the 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();
    // Closing the response sends the response to the client.
    response.Close();
    listener.Stop();
}

' This example requires the System and System.Net namespaces.
Public Shared Function NextCustomerID() As String
    ' A real-world application would do something more robust
    ' to ensure uniqueness.
    Return DateTime.Now.ToString()
End Function

Public Shared Sub SimpleListenerCookieExample(ByVal prefixes As String())
    ' Create a listener
    Dim listener As HttpListener = New HttpListener()

    ' Add the prefixes
    For Each s As String In prefixes
        listener.Prefixes.Add(s)
    Next

    listener.IgnoreWriteExceptions = True
    listener.Start()
    Console.WriteLine("Listening...")
    ' Note: The GetContext method blocks while waiting for a request. 
    Dim context As HttpListenerContext = listener.GetContext()
    Dim request As HttpListenerRequest = context.Request
    Dim customerID As String = Nothing

    ' Did the request come with a cookie?
    Dim cookie As Cookie = request.Cookies("ID")

    If cookie IsNot Nothing Then
        customerID = cookie.Value
    End If

    If customerID IsNot Nothing Then
        Console.WriteLine("Found the cookie!")
    End If

    ' Get the response object.
    Dim response As HttpListenerResponse = context.Response
    ' If they didn't provide a cookie containing their ID, give them one.
    If customerID Is Nothing Then
        customerID = NextCustomerID()
        Dim cook As Cookie = New Cookie("ID", customerID)
        response.AppendCookie(cook)
    End If
    ' Construct a response.
    Dim responseString As String = "<HTML><BODY> Hello " & customerID & "!</BODY></HTML>"
    Dim buffer As Byte() = System.Text.Encoding.UTF8.GetBytes(responseString)
    ' Get the 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()
    response.Close()
    listener.Stop()
End Sub

Keterangan

Cookie adalah data teks nama/nilai dari server Web yang disimpan di komputer lokal (klien). Format cookie berikut didukung: Netscape, RFC 2109, dan RFC 2965.

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