JSON processing is well integrated with JAX-RS 2.0. "Hello JSON" in 3 minutes:
Starring the Maven 3 Archetype: https://github.com/AdamBien/javaee7-essentials-archetype
Web Apps, SPA, PWA with vanilla Java Script (ES 6+), CSS 3 and WebStandards only. As simple as possible, but not simpler. See you at: (Progressive) Web apps, Single Page Apps and WebStandards airhacks workshops at MUC airport, Winter Edition
airhacks.fm the podcast:
Stay in touch: airhacks.news.