怎样使用cookies

Question

我想用cookies来保存用户的信息,如用户名,密码和角色,请问在登陆时该怎样创建这个cookies？
如果要加密cookies，该怎样做？
在其他的页面要怎样读取？
请各位帮帮忙，谢谢

Answer 1

if(Request.Cookies["nCount"] == null)
{
//初始化
HttpCookie myVale = new HttpCookie("nCount","1");
Response.AppendCookie(myVale); Response.Write("1");
}
else
{
HttpCookie cookie = Request.Cookies["nCount"];
if(cookie != null)
{

int n = int.Parse(cookie.Value) + 1; //保存更新值
HttpCookie myVale = new HttpCookie("nCount",n.ToString());
Response.AppendCookie(myVale); //输出值测试
Response.Write(cookie.Value);
}
}

Answer 2

用ASP.NET加密Cookie数据http://dotnet.aspx.cc/ShowDetail.aspx?id=38443E59-E42F-4CBA-99A9-C14EFA6F7E84

Answer 3

to : happyfamily(FreeHorse)
为什么一关掉IE，就又从1开始了，且我的Cookies文件夹里没有cookies文件，

Answer 4

下面代码放在验证登陆之后，保存客户登陆信息                HttpCookie LoginCookie=new HttpCookie("qwersdfawer");
                LoginCookie["qwerzsdvfvwerfq"]=Common.ToBase64(TxtUsername.Text);
                LoginCookie["vcxzvasdfqwer"]=Common.ToBase64(TxtCompID.Text);
                LoginCookie["sadfqwerqwvxcv"]=Common.ToBase64(TxtPass.Text);
                switch(RdlCookie.SelectedIndex)
                {
                    case 0:
                        LoginCookie.Expires=DateTime.Now.AddYears(1);
                        break;
                    case 1:
                        LoginCookie.Expires=DateTime.Now.AddMonths(1);
                        break;
                    case 2:
                        LoginCookie.Expires=DateTime.Now.AddDays(1);
                        break;
                    case 3:
                        LoginCookie.Expires=DateTime.Now;
                        break;
                }
                Response.Cookies.Add(LoginCookie);
下面代码放在Global.asax
            HttpCookie LoginCookie=Request.Cookies["qwersdfawer"];
            if(LoginCookie!=null&&LoginCookie["vcxzvasdfqwer"]!=null&&LoginCookie["qwerzsdvfvwerfq"]!=null&&LoginCookie["sadfqwerqwvxcv"]!=null)
            {
                string dir=Common.FromBase64(LoginCookie["vcxzvasdfqwer"]).ToString();
                string username=Common.FromBase64(LoginCookie["qwerzsdvfvwerfq"]);
                string password=Common.FromBase64(LoginCookie["sadfqwerqwvxcv"]);
                ses user=new ses(dir,username,password);
                if(ses.checkuser(user))
                {
                    Session["user"]=user;
                    Session["username"]=username;
                    Session["Compid"]=dir;
                }
            }
登出
            Session["username"]="";
            Session["Compid"]="";
            Session["menu"]="";
            Session["user"]=null;
            Response.Cookies.Remove("qwersdfawer");
            Response.Cookies.Clear();
            this.Dispose();
            Response.Redirect("index.aspx");