為了實現(xiàn)保持登錄狀態(tài),可以用cookie來解決這一問題

假設(shè)過期時間為30分鐘,校驗發(fā)生在服務(wù)器,借助過濾器,可以這樣寫

 public class PowerFilter : AuthorizeAttribute  {    public override void OnAuthorization(AuthorizationContext filterContext)    {      var cookie = HttpContext.Current.Request.Cookies["loginInfo"];      if(null == cookie)      {        filterContext.Result = new RedirectResult("/admin/login/index");      }      else      {        cookie.Expires = DateTime.Now.AddMinutes(30);        HttpContext.Current.Response.Cookies.Remove("loginInfo");        HttpContext.Current.Response.Cookies.Add(cookie);      }    }  }

但是頁面直接跳轉(zhuǎn)了,也沒有一個提示,顯得不是很友好,可以這樣

public class PowerFilter : AuthorizeAttribute  {    public override void OnAuthorization(AuthorizationContext filterContext)    {      var cookie = HttpContext.Current.Request.Cookies["loginInfo"];      if(null == cookie)      {        filterContext.Result = new ContentResult()        {          Content = string          .Format("<script>alert('登錄超時,請重新登錄');location.href='{0}'</script>","/admin/login/index")        };      }      else      {        cookie.Expires = DateTime.Now.AddMinutes(30);        HttpContext.Current.Response.Cookies.Remove("loginInfo");        HttpContext.Current.Response.Cookies.Add(cookie);      }    }  }}

但是,假如是ajax請求呢?

public class PowerFilter : AuthorizeAttribute  {    public override void OnAuthorization(AuthorizationContext filterContext)    {      var cookie = HttpContext.Current.Request.Cookies["loginInfo"];      if(null == cookie)      {        if(!filterContext.HttpContext.Request.IsAjaxRequest())        {          filterContext.Result = new ContentResult()          {            Content = string                 .Format("<script>alert('登錄超時,請重新登錄');location.href='{0}'</script>","/admin/login/index")          };        }        else        {          filterContext.Result = new JsonResult()          {            Data = new { logoff = true,logurl = "/admin/login/index" },            ContentType = null,            ContentEncoding = null,            JsonRequestBehavior = JsonRequestBehavior.AllowGet          };        }      }      else      {        cookie.Expires = DateTime.Now.AddMinutes(30);        HttpContext.Current.Response.Cookies.Remove("loginInfo");        HttpContext.Current.Response.Cookies.Add(cookie);      }    }  }

以上所述是小編給大家介紹的Asp.net 中mvc 實現(xiàn)超時彈窗后跳轉(zhuǎn)功能，希望對大家有所幫助，如果大家有任何疑問請給我留言，小編會及時回復(fù)大家的。在此也非常感謝大家對錯新站長站網(wǎng)站的支持！