HttpRequest.Cookies 属性

定义

命名空间:

System.Web

程序集:

System.Web.dll

获取客户端发送的 cookie 的集合。

public:
 property System::Web::HttpCookieCollection ^ Cookies { System::Web::HttpCookieCollection ^ get(); };

public System.Web.HttpCookieCollection Cookies { get; }

member this.Cookies : System.Web.HttpCookieCollection

Public ReadOnly Property Cookies As HttpCookieCollection

属性值

HttpCookieCollection

表示客户端的 cookie 变量的 HttpCookieCollection 对象。

示例

下面的代码示例循环访问客户端发送的所有 Cookie，并将每个 Cookie 的名称、到期日期、安全参数和值发送到 HTTP 输出。

int loop1, loop2;
HttpCookieCollection MyCookieColl;
HttpCookie MyCookie;

MyCookieColl = Request.Cookies;

// Capture all cookie names into a string array.
String[] arr1 = MyCookieColl.AllKeys;

// Grab individual cookie objects by cookie name.
for (loop1 = 0; loop1 < arr1.Length; loop1++)
{
   MyCookie = MyCookieColl[arr1[loop1]];
   Response.Write("Cookie: " + MyCookie.Name + "<br>");
   Response.Write ("Secure:" + MyCookie.Secure + "<br>");

   //Grab all values for single cookie into an object array.
   String[] arr2 = MyCookie.Values.AllKeys;

   //Loop through cookie Value collection and print all values.
   for (loop2 = 0; loop2 < arr2.Length; loop2++)
   {
      Response.Write("Value" + loop2 + ": " + Server.HtmlEncode(arr2[loop2]) + "<br>");
   }
}

Dim loop1, loop2 As Integer
Dim arr1(), arr2() As String
Dim MyCookieColl As HttpCookieCollection 
Dim MyCookie As HttpCookie

MyCookieColl = Request.Cookies
' Capture all cookie names into a string array.
arr1 = MyCookieColl.AllKeys
' Grab individual cookie objects by cookie name     
for loop1 = 0 To arr1.GetUpperBound(0)
   MyCookie = MyCookieColl(arr1(loop1))
   Response.Write("Cookie: " & MyCookie.Name & "<br>")
           Response.Write("Secure:" & MyCookie.Secure & "<br>")

   ' Grab all values for single cookie into an object array.
   arr2 = MyCookie.Values.AllKeys
   ' Loop through cookie value collection and print all values.
   for loop2 = 0 To arr2.GetUpperBound(0)
      Response.Write("Value " & CStr(loop2) + ": " & Server.HtmlEncode(arr2(loop2)) & "<br>")
   Next loop2
Next loop1
  

注解

ASP.NET 包括两个固有 Cookie 集合。 通过 Cookies 集合访问的 HttpRequest 集合包含客户端将 Cookie 传输到标头中的 Cookie 服务器。 通过 Cookies 集合访问的 HttpResponse 集合包含服务器上创建并传输到标头中的 Set-Cookie 客户端的新 Cookie。

备注

使用 HttpResponse.Cookies 集合添加 Cookie 后，即使尚未将响应发送到客户端，该 Cookie 也会立即在集合中 HttpRequest.Cookies 可用。

另请参阅

• ValidateInput()
• Form
• QueryString