Explanation
(1) JDK version: 1.8
(2)Spring Boot 2.0.6
(3)Spring Security 5.0.9
(4)Spring Data JPA 2.0.11.RELEASE
(5)hibernate 5.2.17.Final
(6)hsqldb 2.4.1
Demand origin
In front of our memory-based way to experience the next Spring Security, in actual projects, are needed to operate the database, the database used in this section is described hsqldb memory