How Spring application.properties work In this Spring Boot application.properties tutorial, you'll learn how to accomplish tasks including the following: Change the runtime server port Tomcat uses.

Get ready to deploy the Spring Java and React application to production, using MongoDB Atlas, Vercel for the React front end, and a Spring VM to host the back end.

Spring profiles let developers configure their applications to behave differently in various environments. Most Spring profile configurations occur in the application.properties (or YAML) file.