Asp.net 得到Cookie中值
將 Cookie中的值顯示在頁面上，代碼如下：
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
//讀取Cookie中的值 scott 20080610
if (Request.Cookies.Count > 0)
{
HttpCookieCollection hccCookie = new HttpCookieCollection();
//得到用戶端Cookie
hccCookie = Request.Cookies;
//得到所有Key
string[] sArr = hccCookie.AllKeys;
Response.Write("hccCookie.allKeys 數量"+sArr.Length+"<br>");
HttpCookie hc;
int i = 1;
foreach (string sCookie in Request.Cookies.AllKeys)
{
Response.Write("第" + i + "值： <br>");
hc = hccCookie[sCookie];
Response.Write(ConvertUtf8(sCookie) + "是否含有子key： " + hc.HasKeys + "<br>");
//判斷有沒有子Key。如果有，循環得出值
if (hc.HasKeys)
{
Response.Write("子Key值為： <br>");
foreach (string sVar in hc.Values)
{
string cookieSubKey = ConvertUtf8(sVar);
string cookieSubValue = ConvertUtf8(hc[sVar]);
Response.Write(cookieSubKey + "： " + cookieSubValue + "<br>");
}
}
//沒有子key時，直接得出值
else
{
Response.Write(ConvertUtf8(sCookie) + "的值:" + ConvertUtf8(hc.Value) + "<br>");
}
i++;
}
}
}
/// <summary>
/// 將內容轉成Utf8
/// </summary>
/// <param name="asValue"></param>
/// <returns></returns>
private string ConvertUtf8(string asValue)
{
System.Text.Encoding encValue = System.Text.Encoding.GetEncoding("utf-8");
//HttpUtility：提供用于在处理 Web 请求时编码和解码 URL 的方法。
string sReturn = HttpUtility.UrlDecode(asValue, encValue);
return sReturn;
}
}