关于Asp.net中Cookie的问题

1、在应用程序中有时会出现cookie混乱的问题,主要问题在RemoveCookie上,解决办法:
       /// <summary>
       /// 移除cookie,将Request和Response两个集合中的都清理
       ///  Code by KentLi
       /// </summary>
       /// <param name="cookieName">cookie名称</param>
      public void RemoveCookie(string cookieName)
      {
        
              HttpCookie Cookie =  HttpContext.Current.Request.Cookies[cookieName];
              if (Cookie != null)
              {
                    //过期时间设置为立即过期        
                     Cookie.Expires=  DateTime.Now;
                     HttpContext.Current.Request.Cookies.Remove(cookieName);
              }
 
              Cookie =  HttpContext.Current.Response.Cookies[cookieName];
              if (Cookie != null)
              {
                    
                     Cookie.Expires=  DateTime.Now;
                     HttpContext.Current.Response.Cookies.Remove(cookieName);
              }
      }
 
              public void appendcook(string cookies,string cookiesvalue,int days)
              {
                     HttpCookie usercookie=new HttpCookie(cookies,cookiesvalue);
                    usercookie.Expires = DateTime.Now.AddDays(days);
                     HttpContext.Current.Response.Cookies.Add(usercookie);
              }

 

2、中文cookie的问题,在Windows 2000正常,在Windows 2003有时会不正常(几率很小,但的确存在),采用:
Server.UrlEncode();  
Server.UrlDecode();
编码和解码。


Cookie["MyCookie"] = Server.UrlEncode("中文")
Response.Write(Server.UrlDecode(Request.Cookies("MyCookie").Value()))

http://support.microsoft.com/default.aspx?scid=kb;en-us;313282
 
更多Cookie的相关知识


 
HttpContext.Current.Response.Cookies
HttpContext.Current.Request.Cookies
 
分别是需要写回用户客户端和从用户客户端读取的Cookie集合。

当修改Cookie的时候,为了保证同一个Asp.net 页面能访问修改后的Cookie,就必须同时修改这两个集合中的Cookie。
 
posted @ 2005-11-02 15:27  torome  阅读(333)  评论(0编辑  收藏  举报