C# .net中cookie值為中文時的亂碼解決方法

一.cookie的名稱或子cookie的名稱不能為中文,否則無法獲得cookie

這個好辦,名稱不用中文即可

二.cookie的值為中文時候,取cookie的值會出現亂碼

解決辦法:存取cookie時候先解碼和編碼

存cookie,進行編碼:

cookie.Value = HttpUtility.UrlEncode("上海");

取cookie時候,進行解碼:

cookieValue = HttpUtility.UrlDecode(cookie.Value);

另外注意:

取子cookie時候,應該先解碼,再根據%号分解,才能取到子cookie的值.

寫Cookie裡，一定要加上UrlEncode,用Request讀Cookie時，一定要加上UrlDecode

示例如下：

protected void Page_Load(object sender, EventArgs e)

     {

         HttpCookie GoodList = null;

         //如果GoodList不為空，則GOODID+1,GoodsName加"樂無煙"

         if (Request.Cookies["GoodList"] != null)

         {

             GoodList = Request.Cookies["GoodList"];

             GoodList.Values["GoodsID"] = Server.UrlEncode(Server.UrlDecode(Request.Cookies["GoodList"]["GoodsID"]) + ",1");

             GoodList.Values["GoodsName"] = Server.UrlEncode(Server.UrlDecode(Request.Cookies["GoodList"]["GoodsName"]) + ",樂無煙");

             GoodList.Expires = DateTime.Now.AddDays(1);

             Response.Cookies.Add(GoodList);

         }

         else

             //初次寫入Cookie

             GoodList = new HttpCookie("GoodList");

             GoodList.Values["GoodsID"] = Server.UrlEncode("2");

             GoodList.Values["GoodsName"] = Server.UrlEncode("無煙鍋");

         Response.Write(Server.UrlDecode(Request.Cookies["GoodList"]["GoodsID"]) + "<br/>");

         Response.Write(Server.UrlDecode(Request.Cookies["GoodList"]["GoodsName"]) + "<hr/>");

}

中文cookie的問題，

在Windows 2000正常，

在Windows 2003 sp1下會偶爾出現亂碼(遇到雙位元組特殊字元時候，例子：「`蹆绌 )，

在windows 2003 SP2下基本亂碼

解決辦法：

采用

Server.UrlEncode();

Server.UrlDecode();

Cookie["MyCookie"] = Server.UrlEncode("中文")

Response.Write(Server.UrlDecode(Request.Cookies("MyCookie").Value()))

編碼和解碼。

另外編碼和解碼要一緻

System.Web.HttpUtility.UrlDecode 和 System.Web.HttpUtility.UrlEncode

System.Web.HttpContext.Current.Server.UrlDecode 和 System.Web.HttpContext.Current.Server.UrlEncode