MVC过滤器处理Session过期

一、自定义一个Action过滤器

 public class CheckSession: ActionFilterAttribute
{
public override void OnActionExecuting(ActionExecutingContext filterContext)
{
object[] attrs = filterContext.ActionDescriptor.GetCustomAttributes(typeof(NoFilter), true);
if (attrs.Length == ){}
else {
if (filterContext.HttpContext.Session != null)
{
if (filterContext.HttpContext.Session.IsNewSession)
{
var loginUser = filterContext.HttpContext.Session["User"]; if (loginUser == null)
{
if (!filterContext.HttpContext.Request.IsAjaxRequest())
{
filterContext.Result = new RedirectResult("/GY_User/LoginIndex");
}
else
{
filterContext.Result = new JsonResult
{
Data = new
{
Success = false,
Message = string.Empty,
Redirect = "/GY_User/LoginIndex"
}
};
}
}
}
}
}
// base.OnActionExecuting(filterContext);
}
} //不想使用全局过滤器可使用此标签
public class NoFilter:Attribute
{
public NoFilter() { }
}

二、注册全局过滤器

在FilterConfig中添加

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
// filters.Add(new HandleErrorAttribute());
filters.Add(new CheckSession());
}

在Global.asax中添加

protected void Application_Start()
{
AreaRegistration.RegisterAllAreas();
RouteConfig.RegisterRoutes(RouteTable.Routes);
FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
}

三、在不想使用全局过滤器的Action上添加[NoFilter]标签

四、设置Session过期时间

Session["User"] = jsonData.data;
Session.Timeout = ;
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