FacesServlet Servlet 3.0 Async Support

Does the FacesServlet in JSF 2.0 sup开发者_如何学Cport the servlet 3.0 async features?

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No, with the simple reason that JSF 2.0 is designed with Servlet 2.5 in mind.

JSF 2.1 in turn is however designed with Servlet 3.0 in mind, but it does not utilize the new async features, perhaps with the simple reason being that there's just no need for it. The closest what you can get is ajax poll/push provided by 3rd party component libraries like RichFaces, PrimeFaces or IceFaces.