It is used to make REST APIs applications that are named as annotation is used to inject bean object of the type from the container. Behaves similar to but it returns data in response. It is typically used in combination with annotated handler methods based on the annotation indicates that an annotated class is a REST controller. This annotation serves a specialization of allowing for implementation classes to be auto detected through classpath scanning. It is also a specialization of annotation indicates that an annotated class is a web controller and returns view (page) in response. Spring Boot context will autodetect these classes when auto configuration is annotation indicates that the class deals with CRUD operations, usually it’s used with DAO implementations that deal with database tables. The controllers, services and repositories are its annotation is specialization of is used with classes that is used to implement some business logic.

It means that Spring framework will autodetect these classes for dependency injection when annotation-based configuration and classpath scanning is used. It is automatically applied when you initialize your project through Spring annotation is used to denote a class as Component. But In Spring Boot most of the annotations are enhanced and combined in simpler ones to write fewer lines of code.įor example: If you are ever worked with spring core you need to apply and Now In Spring Boot, these three are combined into is a very first annotation that is applied in each Spring Boot application starter class. There are a large number of annotations are implemented in Spring Core. Spring Boot annotations are simple and self-explanatory.

In this tutorial we are going to learn about most used basic annotations in Spring Boot.Īnnotations are the key components.

Annotations in java