net2.0中使用Cookie保存中文出现乱码的解决方法

今天朋友注册会员账号使用了中文，登陆后发现用户名变成了乱码，后来发现是因为账号直接用cookie保存的，而cookie对中文不支持才导致乱码的情况。下面的代码是在网上找的
设置cookie时:

HttpCookie cookie = Request.Cookies["UserName"];
                if (Session["UserName"] != null)
                {
                    string userName = Server.UrlEncode(Session["UserName"].ToString());
                    if (cookie != null)
                    {
                        cookie.Value = userName;
                        //cookie.Expires = DateTime.Now.AddDays(1);
                        cookie.Domain = BasePage.DomainName;
                        Response.Cookies.Set(cookie);
                    }
                    else
                    {
                        cookie = new HttpCookie("UserName");
                        cookie.Value = userName;
                        //cookie.Expires = DateTime.Now.AddDays(1);
                        cookie.Domain = BasePage.DomainName;
                        Response.Cookies.Add(cookie);
                    }
                }

获取cookie时:

private string _loginUserName;
        public string LoginUserName
        {
            get
            {
                if (Session["UserName"] != null && Session["UserName"].ToString() != "")
                {
                    _loginUserName = Session["UserName"].ToString();
                }
                else if (Request.Cookies["UserName"] != null && Request.Cookies["UserName"].Value != "")
                {
                    _loginUserName = Server.UrlDecode(Request.Cookies["UserName"].Value);
                }
                else
                {
                    _loginUserName = null;
                }
                return _loginUserName;
            }
        }

还有一个条件,即配置文件中需要设置中文格式,如:

<!-- 全球化          此节设置应用程序的全球化设置。    -->
<globalization requestEncoding="GB2312" responseEncoding="GB2312"/>

---------------------------------------------------------------------------------------------------------------------------

中文cookie的问题，
在Windows 2000正常，
在Windows 2003 sp1下会偶尔出现乱码(遇到双字节特殊字符时候，例子：「`蹆绌 )，
在windows 2003 SP2下基本乱码

解决办法：
采用
Server.UrlEncode();
Server.UrlDecode();

写入时进行编码：Cookie["MyCookie"] = Server.UrlEncode("中文")
读取时进行解码：Response.Write(Server.UrlDecode(Request.Cookies("MyCookie").Value()))