What is Auto-Configuration in Spring Boot?
It takes a lot of configurations and boilerplate code create a simple Spring MVC application without Spring Boot. Spring Boot Auto Configuration provides an opinionated approach to bootstrap your application. Auto-Configuration will attempt to automatically try to set up our application with default behavior based on the jars in the class-path.For example, if Spring Boot finds HSQLDB in out class-path, it will automatically configure an in-memory database for us. Think of the auto-configuration as an intelligent system which can provide ready to use the application to us based on the configured jars in our class-path.
