Cookie与Session

 

 //修改cookie

        public void Login(string userName,string userPwd)

        {         

            //判断cookie是否为空，如果为空则需要重新创建           

            //var cookie = Request.Cookies["UserLogin"]; 直接获取cookie

           // var cookie = new HttpCookie("UserLogin");  创建cookie

            var cookie = Request.Cookies["UserLogin"] ?? new HttpCookie("UserLogin");

            cookie.Values.Set("userName", userName);

            cookie.Values.Set("userPwd", userPwd);

            cookie.Expires = DateTime.Now.AddDays(1);//设置过期时间

            Response.Cookies.Set(cookie);                      

        }



        //添加cookie

        public void Add(string userName, string userPwd)

        {

            //判断cookie是否为空，如果为空则需要重新创建

            var cookie = Request.Cookies["UserLogin"] ?? new HttpCookie("UserLogin");

            cookie.Values.Add("userName", userName);//数据会累计叠加

            cookie.Values.Add("userPwd", userPwd);

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

            Response.Cookies.Set(cookie);       

        }



        //获取cookie

        public void Get()

        {

            var cookie = Request.Cookies["UserLogin"];

            var name = cookie.Values["userName"];

            var pwd = cookie.Values["userPwd"];

        }



        //删除cookie

        public void Delete()

        {

            var cookie = Request.Cookies["UserLogin"];

            //方法一

            cookie.Values.Remove("userName");

            cookie.Values.Remove("userPwd");

            //方法二

            cookie.Expires = DateTime.Now.AddDays(-1);

            Response.Cookies.Set(cookie);    

        }

        //设置Session

        public void SessionSet()

        {

            //向session中设置值

            Session["userName"] = "大王";

            //获取Session中的值

            var name = Session["userName"];

        }

 

Cookie使用例子

http://www.cnblogs.com/kevin-top/archive/2010/07/04/1770726.html