SpringSide is a Spring Framework based JavaEE application reference architecture.
It shows the mainstream technologies and pragmatic practice in JavaEE world.
It has 2 major examples:
1. Quickstart -- a minimal CRUD Todo-List web application.
2. Showcase -- demonstrate many other interesting technologies.
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Offical Site: http://springside.github.io
Document: https://github.com/springside/springside4/wiki