You certainly can, but it is like a mechanic buying sets of tools from many manufacturers. The Spring framework modules share a consistency of conventions and d

You certainly can, but it is like a mechanic buying sets of tools from many manufacturers. The Spring framework modules share a consistency of conventions and documentation that is itself valuable. Like any opinionated framework, it's going to make assumptions that can cause headaches, but it's mature enough that most issues I run into are a Stack Overflow away.