I'd say Spring Boot. When you use JPA for basic data access, you don't have to have much in the way of data code. It's really easy to use Spring MVC for web front ends with Thymeleaf. It's really easy to make REST for when you don't want to render server side. All of this plugs into a free version of Eclipse called Spring STS. You can also use IntelliJ if you so chose. The nice thing about all of this is that you can simply deploy a JAR. No need for Tomcat or some other web container.

There is also a huge number of tutorials from the horse's mouth on the topic.