问题
Hello am an trying to implement a global filter with injection. The filter looks like this.
public class WikiFilter : IActionFilter
{
private IWikiService service;
public WikiFilter(IWikiService service)
{
this.service = service;
}
public void OnActionExecuting(ActionExecutingContext filterContext)
{
!!!Code here!!
}
public void OnActionExecuted(ActionExecutedContext filterContext)
{
throw new NotImplementedException();
}
}
And i have attached the filter with injection the following way in my global.asax.
public class MvcApplication : System.Web.HttpApplication,
IAuthenticationApplication<User>
{
protected void Application_Start()
{
Ninject();
AreaRegistration.RegisterAllAreas();
RegisterRoutes(RouteTable.Routes);
RegisterGlobalFilters(GlobalFilters.Filters);
}
private void Ninject()
{
// Create Ninject DI kernel
IKernel kernel = new StandardKernel();
kernel.Bind<DataContext>().ToSelf().InRequestScope();
kernel.Bind<IWikiRepository>().To<WikiRepository>();
kernel.Bind<IWikiService>().To<WikiService>();
// Global filters
kernel.BindFilter<WikiFilter>(FilterScope.Global, 0);
DependencyResolver.SetResolver
(new NinjectDependencyResolver(kernel));
}
}
But for some reason is the filter never fired when the application runs, have i not implemented it correctly?
回答1:
I would recommend you using the ~/App_Start/NinjectMVC3.cs
file to configure the Ninject kernel:
[assembly: WebActivator.PreApplicationStartMethod(typeof(AppName.App_Start.NinjectMVC3), "Start")]
[assembly: WebActivator.ApplicationShutdownMethodAttribute(typeof(AppName.App_Start.NinjectMVC3), "Stop")]
namespace AppName.App_Start
{
using System.Web.Mvc;
using Microsoft.Web.Infrastructure.DynamicModuleHelper;
using Ninject;
using Ninject.Web.Mvc;
using Ninject.Web.Mvc.FilterBindingSyntax;
public static class NinjectMVC3
{
private static readonly Bootstrapper bootstrapper = new Bootstrapper();
/// <summary>
/// Starts the application
/// </summary>
public static void Start()
{
DynamicModuleUtility.RegisterModule(typeof(OnePerRequestModule));
bootstrapper.Initialize(CreateKernel);
}
/// <summary>
/// Stops the application.
/// </summary>
public static void Stop()
{
bootstrapper.ShutDown();
}
/// <summary>
/// Creates the kernel that will manage your application.
/// </summary>
/// <returns>The created kernel.</returns>
private static IKernel CreateKernel()
{
var kernel = new StandardKernel();
RegisterServices(kernel);
return kernel;
}
/// <summary>
/// Load your modules or register your services here!
/// </summary>
/// <param name="kernel">The kernel.</param>
private static void RegisterServices(IKernel kernel)
{
kernel.Bind<DataContext>().ToSelf().InRequestScope();
kernel.Bind<IWikiRepository>().To<WikiRepository>();
kernel.Bind<IWikiService>().To<WikiService>();
kernel.BindFilter<WikiFilter>(FilterScope.Global, 0);
}
}
}
and the Global.asax stays unchanged. By the way that's the default setup when you install the Ninject.MVC3 NuGet package.
来源:https://stackoverflow.com/questions/5790047/asp-net-mvc-3-and-global-filter-injection