Spring Boot application structure

Microservices, if exposed as web services, either JSON or XML, need to have the corresponding HTTP server capabilities. As well as managing resources and connections to databases, they may consume other services, or even publish data through messages queues.

If you have worked with these kinds of applications before, you may remember how complex they were in order to configure and set up with probably dozens of XML files and properties and in many cases a lot of boilerplate code that initialized many of these systems.

Spring, through Spring Boot, provides a framework that will drastically reduce the boilerplate code and autoconfigure most of the system that we need to use.

Let's review the different components that we will use to create microservices.