Asp.net 中mvc 实现超时弹窗后跳转功能

为了实现保持登录状态,可以用cookie来解决这一问题

假设过期时间为30分钟,校验发生在服务器,借助过滤器,可以这样写

 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);
      }
    }
  }

但是页面直接跳转了,也没有一个提示,显得不是很友好,可以这样

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("","/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请求呢?

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("","/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);
      }
    }
  }

以上所述是小编给大家介绍的Asp.net 中mvc 实现超时弹窗后跳转功能，希望对大家有所帮助，如果大家有任何疑问请给我留言，小编会及时回复大家的。在此也非常感谢大家对考高分网网站的支持！