问在ASP.NET MVC3中使用JSON.NET作为默认的JSON串行化器-这是可能的吗？

EN

public class JsonHandlerAttribute : ActionFilterAttribute
{
    public override void OnActionExecuted(ActionExecutedContext filterContext)
    {
       var jsonResult = filterContext.Result as JsonResult;

        if (jsonResult != null)
        {
            filterContext.Result = new JsonNetResult
            {
                ContentEncoding = jsonResult.ContentEncoding,
                ContentType = jsonResult.ContentType,
                Data = jsonResult.Data,
                JsonRequestBehavior = jsonResult.JsonRequestBehavior
            };
        }

        base.OnActionExecuted(filterContext);
    }
}

GlobalFilters.Filters.Add(new JsonHandlerAttribute());

public class JsonNetResult : JsonResult
{
    public JsonNetResult()
    {
        Settings = new JsonSerializerSettings
        {
            ReferenceLoopHandling = ReferenceLoopHandling.Error
        };
    }

    public JsonSerializerSettings Settings { get; private set; }

    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))
            throw new InvalidOperationException("JSON GET is not allowed");

        HttpResponseBase response = context.HttpContext.Response;
        response.ContentType = string.IsNullOrEmpty(this.ContentType) ? "application/json" : this.ContentType;

        if (this.ContentEncoding != null)
            response.ContentEncoding = this.ContentEncoding;
        if (this.Data == null)
            return;

        var scriptSerializer = JsonSerializer.Create(this.Settings);
        scriptSerializer.Serialize(response.Output, this.Data);
    }
}

public ActionResult DoSomething()
{
    dynamic cResponse = new ExpandoObject();
    cResponse.Property1 = "value1";
    cResponse.Property2 = "value2";
    return Content(JsonConvert.SerializeObject(cResponse), "application/json");
}

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 );
            }
        }
    }
}

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);
    }
}