Spring REST VS Jersey(JAX-RS implementation):

REST API creation

• Spring REST provides RESTFul implementation along with the ability to create a  Web full stack development support.
• Whereas JAX-RS (Jersey, RESTEasy and Apache CXF implementation ) provide REST implementation only.

JAX-RS compliance

• Spring REST is not in compliance with JAX-RS.
• JAX-RS is a JSR Specification defining a Java API for RESTful Web Services.

-          Jersey, RESTEasy and Apache CXF are the implementation of JAX-RS.

-          We can use Jersey implementation if we go with JAX-RS compliance.

Server Migration

• JAX-RS ensures portability of REST API code across all Java EE compliant application servers.
• Spring REST we need to check whether we will have any issues in the server migration.

JAX-RS - Java API for RESTful WebService:

JAX-RS is a Java Specification Request (JSR).

JAX-RS ensures portability of REST API code across all Java-EE compliant application servers.

Many used to compare JAX-RS with Jersey and they think both are implementation for RESTful web service, that is not correct.

To make thinks clear, Jersey is an implementation of JAX-RS.

Other implementation that are JAX-RS compliant are RESTEasy and Apache CXF .