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Editorial Team
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Asked: 2026-06-07T12:50:35+00:00

I have implemented a RESTful web service using jersey and deployed it on Tomcat,

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I have implemented a RESTful web service using jersey and deployed it on Tomcat, I have used DAO classes to manipulate database operations, entities to wrap database records. and did the processing in separate package. I want to make this system distributed using EJB. First of all would it be easy to do this change. or i need to rewrite things from scratch. Second, I still need to have the REST WS, so would it be possible to expose the EJB as a REST WS and how? would the REST WS be in the same EJB project or in a different one?

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  1. Editorial Team

    You can definitely do it as an EJB and REST WS. Upgrade your Tomcat install to TomEE Plus, then just add @Stateless or @Singleton to the existing REST service.

    You won’t need Jersey in there anymore as the Java EE version of Tomcat (TomEE) includes CXF for JAX-RS support.

    This example is not well documented, but shows a functional application that combines both EJB and JAX-RS.

    http://tomee.apache.org/examples-trunk/rest-on-ejb/README.html

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