在MVC4中显示和错误,我必须实现一些接口,但我已经完成了它

Question

我正在尝试创建自己的过滤器属性,以支持多语言.这个想法很简单.URL代表语言.

• *HTTP://host.ext/ EN/rest_of_the_url*将用英语开
• *http://host.ext/ hy/rest_of_the_url*将以亚美尼亚语开放.

问题是在运行时它会说MultilingualActionFilterAttribute

以下是错误文本"给定的过滤器实例必须实现以下一个或多个过滤器接口:IAuthorizationFilter,IActionFilter,IResultFilter,IExceptionFilter".

在这里,我将它用作全局过滤器.

namespace TIKSN.STOZE.WebApp
{
    public class FilterConfig
    {
        public static void RegisterGlobalFilters(System.Web.Mvc.GlobalFilterCollection filters)
        {
            filters.Add(new TIKSN.STOZE.Common.MultilingualActionFilterAttribute());
            filters.Add(new System.Web.Mvc.HandleErrorAttribute());
        }
    }
}

我在这里定义它.

namespace TIKSN.STOZE.Common
{
    public class MultilingualActionFilterAttribute : System.Web.Mvc.ActionFilterAttribute
    {
        public override void OnActionExecuting(System.Web.Mvc.ActionExecutingContext filterContext)
        {
            string language = System.Convert.ToString(filterContext.RouteData.Values["language"]);

            System.Diagnostics.Debug.Print("Requested language is '{0}'", language);
            language = Helper.PickUpSupportedLanguage(language);
            System.Diagnostics.Debug.Print("Supported language is '{0}'", language);

            if (language == string.Empty)
            {
                filterContext.HttpContext.Response.RedirectToRoutePermanent(new { language = Common.Properties.Settings.Default.DefaultLanguageCode });
            }

            language = Helper.TryToPickUpSupportedLanguage(language);

            System.Threading.Thread.CurrentThread.CurrentCulture = System.Globalization.CultureInfo.CreateSpecificCulture(language);
            System.Threading.Thread.CurrentThread.CurrentUICulture = System.Globalization.CultureInfo.GetCultureInfo(language);
        }
    }
}

Answer 1

如果您使用的是web api,那么问题可能会因为实现错误的接口而发生,正如IActionFilter在两者System.Web.Http.Filters和System.Web.Mvc命名空间中定义的那样.

Answer 2

问题是我更新到了 MVC 5，所以我也必须更新web.config文件。看这里。