Saya tahu ini baik-baik saja setelah pertanyaan dijawab, tetapi saya menggunakan pendekatan yang berbeda karena saya menggunakan injeksi ketergantungan untuk membuat contoh pengontrol saya.
Saya telah mengganti IActionInvoker (dengan memasukkan Properti ControllerActionInvoker pengontrol) dengan versi yang menggantikan metode InvokeActionMethod.
Ini berarti tidak ada perubahan pada pewarisan pengontrol dan itu dapat dengan mudah dihapus ketika saya meningkatkan ke MVC4 dengan mengubah pendaftaran penampung DI untuk SEMUA pengontrol
public class JsonNetActionInvoker : ControllerActionInvoker
{
protected override ActionResult InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary<string, object> parameters)
{
ActionResult invokeActionMethod = base.InvokeActionMethod(controllerContext, actionDescriptor, parameters);
if ( invokeActionMethod.GetType() == typeof(JsonResult) )
{
return new JsonNetResult(invokeActionMethod as JsonResult);
}
return invokeActionMethod;
}
private class JsonNetResult : JsonResult
{
public JsonNetResult()
{
this.ContentType = "application/json";
}
public JsonNetResult( JsonResult existing )
{
this.ContentEncoding = existing.ContentEncoding;
this.ContentType = !string.IsNullOrWhiteSpace(existing.ContentType) ? existing.ContentType : "application/json";
this.Data = existing.Data;
this.JsonRequestBehavior = existing.JsonRequestBehavior;
}
public override void ExecuteResult(ControllerContext context)
{
if (context == null)
{
throw new ArgumentNullException("context");
}
if ((this.JsonRequestBehavior == JsonRequestBehavior.DenyGet) && string.Equals(context.HttpContext.Request.HttpMethod, "GET", StringComparison.OrdinalIgnoreCase))
{
base.ExecuteResult(context); // Delegate back to allow the default exception to be thrown
}
HttpResponseBase response = context.HttpContext.Response;
response.ContentType = this.ContentType;
if (this.ContentEncoding != null)
{
response.ContentEncoding = this.ContentEncoding;
}
if (this.Data != null)
{
// Replace with your favourite serializer.
new Newtonsoft.Json.JsonSerializer().Serialize( response.Output, this.Data );
}
}
}
}
--- EDIT - Diperbarui untuk menampilkan pendaftaran kontainer untuk pengontrol. Saya menggunakan Unity di sini.
private void RegisterAllControllers(List<Type> exportedTypes)
{
this.rootContainer.RegisterType<IActionInvoker, JsonNetActionInvoker>();
Func<Type, bool> isIController = typeof(IController).IsAssignableFrom;
Func<Type, bool> isIHttpController = typeof(IHttpController).IsAssignableFrom;
foreach (Type controllerType in exportedTypes.Where(isIController))
{
this.rootContainer.RegisterType(
typeof(IController),
controllerType,
controllerType.Name.Replace("Controller", string.Empty),
new InjectionProperty("ActionInvoker")
);
}
foreach (Type controllerType in exportedTypes.Where(isIHttpController))
{
this.rootContainer.RegisterType(typeof(IHttpController), controllerType, controllerType.Name);
}
}
public class UnityControllerFactory : System.Web.Mvc.IControllerFactory, System.Web.Http.Dispatcher.IHttpControllerActivator
{
readonly IUnityContainer container;
public UnityControllerFactory(IUnityContainer container)
{
this.container = container;
}
IController System.Web.Mvc.IControllerFactory.CreateController(System.Web.Routing.RequestContext requestContext, string controllerName)
{
return this.container.Resolve<IController>(controllerName);
}
SessionStateBehavior System.Web.Mvc.IControllerFactory.GetControllerSessionBehavior(RequestContext requestContext, string controllerName)
{
return SessionStateBehavior.Required;
}
void System.Web.Mvc.IControllerFactory.ReleaseController(IController controller)
{
}
IHttpController IHttpControllerActivator.Create(HttpRequestMessage request, HttpControllerDescriptor controllerDescriptor, Type controllerType)
{
return this.container.Resolve<IHttpController>(controllerType.Name);
}
}