如何在 OwinSelfHost 中使用 ActionFilters

Question

我使用 microsoft.owin 在 ConsoleApplication 中自行托管 WebApi
但 ActionFilters 不会在应用程序中触发。这是我的动作过滤器：

public class FilterA : Attribute, IActionFilter
{
    public void OnActionExecuted(ActionExecutedContext filterContext)
    {
        if (!filterContext.RouteData.GetRequiredString("controller").Equals("account", StringComparison.CurrentCultureIgnoreCase) //long condition evaluating to true
                                                                                                                                  //logic controlling these filters dont apply to Foo/Bar and Foo/Baz
             && (!filterContext.RouteData.GetRequiredString("controller").Equals("Foo", StringComparison.CurrentCultureIgnoreCase)
                 || (!filterContext.RouteData.GetRequiredString("action").Equals("Bar", StringComparison.CurrentCultureIgnoreCase)
                     && !filterContext.RouteData.GetRequiredString("action").Equals("Baz", StringComparison.CurrentCultureIgnoreCase))
                 )
             )
        {
            filterContext.Result = new RedirectResult("~/Foo/Bar");
        }
    }

    public void OnActionExecuting(ActionExecutingContext filterContext)
    {
        if (!filterContext.RouteData.GetRequiredString("controller").Equals("account", StringComparison.CurrentCultureIgnoreCase) //long condition evaluating to true
                                                                                                                                  //logic controlling these filters dont apply to Foo/Bar and Foo/Baz
            && (!filterContext.RouteData.GetRequiredString("controller").Equals("Foo", StringComparison.CurrentCultureIgnoreCase)
                || (!filterContext.RouteData.GetRequiredString("action").Equals("Bar", StringComparison.CurrentCultureIgnoreCase)
                    && !filterContext.RouteData.GetRequiredString("action").Equals("Baz", StringComparison.CurrentCultureIgnoreCase))
                )
            )
        {
            filterContext.Result = new RedirectResult("~/Foo/Bar");
        }
    }
}

并像这样使用它，但 FilterA 不触发。有什么问题

    [FilterA]
    [Route("RpTDAccounting")]
    [HttpGet]
    public IHttpActionResult RpTDAccounting()
    {

        return Ok();
    }

Answer 1

应该使用 System.Web.Http.Filters 命名空间而不是 System.web.mvc
和 impelment IActionFilter 像这样：

public class FilterA : Attribute, IActionFilter
{
    public bool AllowMultiple => throw new NotImplementedException();

    public Task<HttpResponseMessage> ExecuteActionFilterAsync(HttpActionContext actionContext, CancellationToken cancellationToken, Func<Task<HttpResponseMessage>> continuation)
    {
        throw new NotImplementedException();
    }
}