HttpListenerRequest.QueryString 屬性

定義

命名空間:

System.Net

組件:

netstandard.dll, System.Net.HttpListener.dll

來源:

HttpListenerRequest.cs

取得要求中所包含的查詢字串。

C#

public System.Collections.Specialized.NameValueCollection QueryString { get; }

屬性值

NameValueCollection

NameValueCollection 物件，含有要求 Url 中所含的查詢資料。

範例

下列程式代碼範例示範如何使用 QueryString 屬性。

C#

public static void ShowRequestProperties1 (HttpListenerRequest request)
{
    // Display the MIME types that can be used in the response.
    string[] types = request.AcceptTypes;
    if (types != null)
    {
        Console.WriteLine("Acceptable MIME types:");
        foreach (string s in types)
        {
            Console.WriteLine(s);
        }
    }
    // Display the language preferences for the response.
    types = request.UserLanguages;
    if (types != null)
    {
        Console.WriteLine("Acceptable natural languages:");
        foreach (string l in types)
        {
            Console.WriteLine(l);
        }
    }

    // Display the URL used by the client.
    Console.WriteLine("URL: {0}", request.Url.OriginalString);
    Console.WriteLine("Raw URL: {0}", request.RawUrl);
    Console.WriteLine("Query: {0}", request.QueryString);

    // Display the referring URI.
    Console.WriteLine("Referred by: {0}", request.UrlReferrer);

    //Display the HTTP method.
    Console.WriteLine("HTTP Method: {0}", request.HttpMethod);
    //Display the host information specified by the client;
    Console.WriteLine("Host name: {0}", request.UserHostName);
    Console.WriteLine("Host address: {0}", request.UserHostAddress);
    Console.WriteLine("User agent: {0}", request.UserAgent);
}

備註

在 URL 中，查詢資訊會以問號 (？) 分隔路徑資訊。 名稱/值組會以等號分隔， (=) 。 若要以單一字串的形式存取查詢數據，請從 Uri 所Url傳回的物件取得 Query 屬性值。

備註

例如，沒有等號的查詢 (， http://www.contoso.com/query.htm?Name) 會新增至 null 中的 NameValueCollection索引鍵。

適用於

另請參閱

• HttpListener
• HttpListenerContext
• HttpListenerResponse