如何在ASP.NET MVC中获得对HttpResponse的引用？

public class HomeController : Controller
{
    public ActionResult Index()
    {
        HttpResponseBase response = this.Response;
        // 使用response对象进行操作
        return View();
    }
}

@{
    HttpResponse response = HttpContext.Current.Response;
    // 使用response对象进行操作
}

public class CustomActionFilterAttribute : ActionFilterAttribute
{
    public override void OnActionExecuted(HttpActionExecutedContext actionExecutedContext)
    {
        HttpResponseMessage response = actionExecutedContext.Response;
        // 使用response对象进行操作
        base.OnActionExecuted(actionExecutedContext);
    }
}

public class ValuesController : ApiController
{
    public HttpResponseMessage Get()
    {
        HttpResponseMessage response = Request.CreateResponse(HttpStatusCode.OK, new string[] { "value1", "value2" });
        // 使用response对象进行操作
        return response;
    }
}