Since the early days of Java, there have been many frameworks and libraries that have tried to improve web developers productivity and this trend has continued with JVM languages like Groovy ...

Grails, a web application framework built on the Groovy programming language, offers significant assistance with database development in Java through its integrated features and tools.

In the typical Spring framework style, WebFlux provides an abstraction layer for building reactive web components. That means you can use a couple of different underlying reactive implementations.