개발관련 사이트

- maven repository
http://mvnrepository.com/

- java API
https://docs.oracle.com/javase/8/docs/api/

- j2ee API
https://docs.oracle.com/javaee/7/api/

- spring API
https://docs.spring.io/spring-boot/docs/current/
(reference > html > Application Properties : 기본 properties)

https://docs.spring.io/spring/docs/5.0.x/javadoc-api/

- spring Reference
https://spring.io/docs/reference

- spring source
https://github.com/spring-projects

- spring Wiki
https://github.com/spring-projects/spring-boot/wiki

- myBatis
http://mybatis.org/spring/