Difference between Spring MVC's @Async, DeferredResult and Callable

Question

I\'ve a long-running task defined in a Spring service. It is started by a Spring MVC controller. I want to start the service and return back an HttpResponse to the

Answer 1

DeferredResult takes advantage of the Servlet 3.0 AsyncContext. It will not block the thread like the others will when you need a result returned.

Another big benefit is that DeferredResult supports callbacks.