怎样实现登陆时保存COOKIES

Question

就是那个登陆时选的保存一天保存一个月保存一年那个
希望能说的细一点

Answer 1

   protected void Denglu_Click(object sender, ImageClickEventArgs e)
    {
      
        string UserName = this.username.Text.Trim();
        string passWord = System.Web.Security.FormsAuthentication.HashPasswordForStoringInConfigFile(this.userpass.Text.Trim(), "MD5");         //查询用户名和密码是否和数据库中的相匹配
        DataTable dt = new DataTable();
        string sql = "select username,password,uid from bbs_users where username='"+UserName+"' and password='"+passWord+"'";
        sqls.Fill_DT(sql,dt);
        sqls.ConClose();        if (dt.Rows.Count > 0)
        {
           HttpCookie cookies;//将用户名和密码写入Cookies                cookies = new HttpCookie("UserCookies");
                cookies.Values["User_Name"] = dt.Rows[0]["username"].ToString();
                cookies.Values["User_Pwd"] = dt.Rows[0]["password"].ToString();
                cookies.Values["User_Uid"] = dt.Rows[0]["uid"].ToString();
                Response.AppendCookie(cookies);
                cookies.Expires = System.DateTime.Now.AddDays(1);//设置过期时间是7天   
                 Response.Redirect("e8ecom/admin/My_Edit_Data.aspx");
        }
        else
        {
            this.Response.Write("<script>alert('登陆失败！');</script>");
            return;
        }
    }

Answer 2

取COOKies HttpCookie myCookie = Request.Cookies["UserCookies"];
//这里的UserCookies必须和保存的时候那个名字一样
            if (myCookie != null)
            {
                uid = int.Parse(myCookie["User_Uid"].ToString());
                sqls.Fill_DT("select itemno from dbo.bbs_Users where uid ='"+uid+"'",dt);
                if(dt.Rows.Count>0)
                {
                    this.HLHref.NavigateUrl = "~/e8ecom/Space/MyRecord.aspx?space=" + dt.Rows[0]["itemno"].ToString() + "";
                  }
                sqls.ConClose();
            }
            else
            {
                this.Response.Write("<script>alert('您没有登陆');</script>");
                this.Response.Redirect("../../Login.aspx");
            }