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;
    }
}