Is JAX-RS built on top of Servlet API? How?

Question

I\'ve been reading that the JAX-RS is built on top of servlets. Is this literally true, or it just mean that it is a higher level component? If it is, how does that work? Does J

Answer 1

Jax rs does not really use or depend on servlets directly but it is commonly implemented on top of it by frameworks that implement it. In that case your application is wrapped with a servlet that delegates incoming requests to your jax rs endpoints and the whole thing is deployed in a servlet container such as tomcat or jetty.

However, for example jersey (the reference implementation) can run without a servlet wrapper in a standalone server. We use grizzly as our container for this. There is no servlet container in our application and we use the grizzly container instead. Of course the grizzly container provides a very similar execution model but you don't need a full blown application server to run it. go here for more details on grizzly