Spring Boot is an opinionated layer on top of the Spring Framework that removes the XML and the boilerplate. Pivotal released it in 2014; since then it has become the default way to start any non-trivial Java backend. A new project is one Spring Initializr request away — declare a few starters (web, data-jpa, security, kafka), add your beans, and the framework wires the rest.
Spring Boot 3.x runs on Java 17+ and integrates the Jakarta EE 9+ packages. Auto-configuration, Actuator, and Spring Cloud bring observability, health checks, and distributed-system primitives without writing them yourself. Combined with a build tool (Maven or Gradle) and a deployment target (Kubernetes, ECS, Cloud Foundry), it is still the lowest-friction way to ship a production Java service.
What you'll work with in these 37 courses
- Auto-configuration, starters, profiles, externalized configuration
- Spring MVC and Spring WebFlux for HTTP services and reactive streams
- Spring Data JPA + Hibernate, Spring Data MongoDB, Spring Data Redis
- Spring Security: OAuth2, JWT, method-level security, CSRF
- Actuator endpoints, Micrometer metrics, distributed tracing
- Testing:
@SpringBootTest, Testcontainers, MockMvc, WebTestClient
Most enterprise Java in 2026 is Spring Boot. Banks, insurance companies, telecoms, and any team adopting microservices on the JVM tend to converge on the same combination: Spring Boot + Kafka + PostgreSQL + Kubernetes.
![[NEW] Spring Boot 3, Spring 6 & Hibernate for Beginners thumbnail](https://cdnq.courseflix.net/course/thumbnail/new-spring-boot-3-spring-6-hibernate-for-beginners-160x90.webp "[NEW] Spring Boot 3, Spring 6 & Hibernate for Beginners thumbnail")
