Spring Boot MVC web application example based in some official guides and documentation:
- https://spring.io/guides/gs/serving-web-content/
- https://spring.io/guides/gs/handling-form-submission/
- https://spring.io/guides/gs/validating-form-input/
- https://spring.io/guides/gs/accessing-data-jpa/
- https://www.thymeleaf.org/documentation.html
- https://jakarta.ee/specifications/persistence/2.2/apidocs/