IoC refers to “inversion of control.” Basically, you define control by declaring dependencies. A bean is an object that is instantiated, assembled, and otherwise managed by a Spring IoC container. “In Spring, the objects that form the backbone of your application and that are managed by the Spring IoC container are called beans.
There is the definition from the Spring docs: That being said, you should consider more advanced understandings of what actually constitutes or should be defined as a bean. A bean is an essential component of any Spring-based application. Basic Spring & Spring Boot – This is the #1 concept to know in Spring. This is just a selection of the many annotations Spring Boot and Spring have, with a focus on the basics, configurations, and testing. There is also mapping out (in your own mind) what works at a method level and what works at a class level should something be defined specifically as a bean or component (we’ll get to those soon) and what needs to be annotated and what doesn’t. The documentation is extremely thorough, but complex. One of the more overwhelming elements of Spring and Spring Boot is the extremely long lists of classes and annotations that exist. Auto-configuration makes it easy to get started with the Spring Framework (or even Java overall if you’re a true novice to coding) and the support community is huge. Spring has a number of dependencies Spring Boot, not so much (at least until build time).
SPRING BOOT ANNOTATIONS MANUAL
For one, Spring uses manual configurations while Spring Boot contains a number of default config templates. It is a streamlined form of the larger Spring Framework. Spring Boot has made the Spring Framework more accessible than it already was.
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