I have developed RESTful web services in two ways:
used a class that extends javax.ws.rs.core.Application
without defining a web.xml
file, using Glassfish.
haven't used javax.ws.rs.core.Application
but included a web.xml
and a Jersey implementation, using Tomcat.
Is there a preferred way of building RESTful web services with JAX-RS?
Using the javax.ws.rs.core.Application
class is the preferred way and also the only portable way of configuring resources and providers in a JAX-RS web service,
so if possible that would be the recommended way to set it up.
But that works well only in JAX-RS aware servlet containers or application servers, for JAX-RS non aware servers you need other ways for deployment and that most of the times means some proprietary servlet class of the JAX-RS implementation you are using.
To get more details on the subject, see for example the Jersey documentation, Deploying a RESTful Web Service (for Jersey v1.x) and Application Deployment and Runtime Environments (for Jersey v2.x).
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