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Learn 20+ Spring and Spring Boot Annotations

Name: Learn 20+ Spring and Spring Boot Annotations
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Rating: 4.4 (134 reviews)

4.4(134)4k studentsBEGINNER

Korshub's take

The annotations interviewers actually ask about

Rather than a broad framework tour, this course goes annotation by annotation — over 20 of them — with line-by-line coding in IntelliJ IDEA, built on Spring Boot 3 and Java 17. The focus is deliberately narrow: the annotations that come up repeatedly in beginner-level interviews.

Who it's for

Beginners preparing for Spring or Spring Boot interviews who want focused, hands-on coverage rather than a full framework course.

What's covered

Core annotations: Component, Autowired, Qualifier, Primary, Bean, Configuration
Web-layer annotations: RestController, RequestMapping, GetMapping, PostMapping, PathVariable
Configuration annotations: Value, PropertySource, ConfigurationProperties
Scope and Lazy annotation behavior

Tools used throughout are Spring Boot 3, Java 17, IntelliJ IDEA, Maven, and Postman — a practical, interview-ready toolkit.

About this course

In this course, I will cover the following 20+ spring and spring boot annotations with line-by-line coding in IntelliJ IDEA. We gonna use the latest version of Spring Boot 3 and Java 17.

These 20+ annotations are frequently asked in interviews for beginners so I highly recommend going through these annotations before an interview.

Spring and Spring Boot Annotations:

Component Annotation

Autowired Annotation

Qualifier Annotation

Primary Annotation

SpringBootApplication

Bean and Configuration Annotations

Controller, Service, and Repository

Lazy Annotation

Scope Annotation

Value Annotation

PropertySource and PropertySources Annotations

ConfigurationProperties Annotation

Controller and ResponseBody Annotations

RestController Annotation

RequestMapping Annotation

GetMapping Annotation

PostMapping and RequestBody Annotations

PutMapping Annotation

DeleteMapping Annotation

PathVariable Annotation

RequestParam Annotation

What is Spring Framework?

Spring Framework is a popular open-source Java-based application framework that provides a comprehensive infrastructure for developing Java applications. It was initially created to simplify the development of enterprise applications, but it has since expanded to become a general-purpose framework for developing any kind of Java application.

What is Spring Boot?

Spring Boot is basically an extension of the Spring framework which eliminates the boilerplate configurations required for setting up a Spring application.

Spring Boot is an opinionated framework that helps developers build Spring-based applications quickly and easily. The main goal of Spring Boot is to quickly create Spring-based applications without requiring developers to write the same boilerplate configuration again and again.

Tools and technologies used:

- Spring Boot 3

- Java 17 or later

- IntelliJ IDEA

- Maven

- Postman