[Filter] OnActionExecuting

如果需要在進Action前執行特定行為,如過濾

就需要額外新增一個class並繼承ActionFilterAttribute

裡面有四個基本功能

Action,Result執行前後

範例 :

//public override void OnActionExecuting(ActionExecutingContext filterContext)       

//{       

//    string currentDomain = filterContext.HttpContext.Request.Headers["HOST"];       

//    List<string> domains = WebConfigurationManager.AppSettings["AllowDomain"].ToString().Split(',').ToList();       

//    if (!domains.Any(i => i.Contains(currentDomain)))       

//    {      

//        throw new Exception("未允許的網域");       

//    }       

//}