/// <summary>
 /// 添加用户
 /// </summary>
 /// <param name="userinfo"></param>
 /// <returns></returns>
 public ActionResult AddUser(UserInfo userinfo)
 {
     userinfo.CreateTime = DateTime.Now;
     using (EasyUIDemoDBEntities db = new EasyUIDemoDBEntities())
     {
         db.UserInfo.Add(userinfo);
         db.SaveChanges();
     }
     return Content("OK");
 }
        /// <summary>
        /// 重新基类在Action执行之前的事情
        /// </summary>
        /// <param name="filterContext">重写方法的参数</param>
        protected override void OnActionExecuting(ActionExecutingContext filterContext)
        {
            base.OnActionExecuting(filterContext);
            //得到用户登录的信息
            CurrentUserInfo = Session["UserInfo"] as UserInfo;

            //判断用户是否为空
            if (CurrentUserInfo == null)
            {
                Response.Redirect(Url.Content("~/Login/Login"));
            }
        }
 /// <summary>
 /// 处理登录的信息
 /// </summary>
 /// <param name="userInfo"></param>
 /// <returns></returns>
 public JsonResult CheckUserLogin(UserInfo userInfo)
 {
     using (EasyUIDemoDBEntities db = new EasyUIDemoDBEntities())
     {
         //linq查询
         var users = from p in db.UserInfo
                     where p.Name == userInfo.Name && p.Password == userInfo.Password && p.Enable == true
                     select p;
         if (users.Count() > 0)
         {
             userInfo = users.FirstOrDefault();
             Session["UserInfo"] = userInfo;
             Response.Cookies["UserName"].Value = userInfo.Name;
             Response.Cookies["UserName"].Expires = DateTime.Now.AddDays(7);
             return Json(new { result = "success", content = "" });
         }
         else
         {
             return Json(new { result = "error", content = "用户名密码错误,请您检查" });
         }
     }
 }