Spring Data Web Exporter
The goal of the project is to provide a flexible and configurable mechanism for writing simple services that can be exposed over HTTP.
The first exporter implemented is a JPA Repository exporter. This takes your JPA repositories and front-ends them with HTTP, allowing you full CRUD capability over your entities, to include managing associations.
Installation instructions are in the docs:
The Spring Data REST Exporter is Apache 2.0 licensed.