One of my past projects relied heavily on XML based configurations and JSP technologies dated back to Spring Framework 3.x. It is still working fine after upgrading to Spring 5 and corresponding dependent libraries such as Hibernate 5, HikariCP 3 and Apache CXF 3.3. Exploring further into Spring ecosystem, I decided to give a shot on migrating to Spring Boot 2 whilst keeping most of the existing MVC (e.g. controllers, validations, JSP views) working. Most of the significant information are sc...
