ASP.NET MVC的基本AJAX示例？

using System.Web.Mvc;
using System.Web.Script.Serialization;
using System.Web.Script.Services;

public ActionResult Index()
{
    return View();
}

public JsonResult GetData()
{
    var data = new
    {
        message = "Hello, world!",
        date = DateTime.Now
    };

    return Json(data, JsonRequestBehavior.AllowGet);
}

public ActionResult DoSomething()
{
    var data = new
    {
        message = "Hello, world!",
        date = DateTime.Now
    };

    return Json(data, JsonRequestBehavior.AllowGet);
}

public void DoSomethingAsync()
{
    var controller = new HomeController();

    var task = controller.DoSomethingAsync(new System.Threading.CancellationToken());

    task.Wait();

    var data = task.Result;

    ViewData["message"] = data.message;
    ViewData["date"] = data.date;
}