Gerador inicial: https://start.spring.io/
Git: https://github.com/spring-projects/spring-boot
Exemplo: http://blog.netgloo.com/2014/10/27/using-mysql-in-spring-boot-via-spring-data-jpa-and-hibernate/ https://github.com/netgloo/spring-boot-samples/tree/master/spring-boot-mysql-springdatajpa-hibernate
Documentação: http://docs.spring.io/spring-boot/docs/1.5.3.RELEASE/reference/htmlsingle/
Para executar: mvn spring-boot:run
Propriedades: https://docs.spring.io/spring-boot/docs/current/reference/html/common-application-properties.html