Spring Boot has emerged as a pivotal framework for building robust and scalable Java applications. Its simplicity, flexibility, and rapid development capabilities have made it a top choice for both developers and organizations. We’ve curated a comprehensive set of Spring Boot interview questions that are frequently posed by hiring managers and technical interviewers.
Table of contents
1. What is Spring Boot, and how does it differ from the traditional Spring framework?2 . What is a Spring Boot Starter?3. Explain the concept of auto-configuration in Spring Boot.4. How can you create a Spring Boot application?5. What is the @SpringBootApplication annotation, and how does it work?6. How do you define application properties or configuration in Spring Boot?7. What is the purpose of the @RestController annotation?8. Explain the difference between @RequestMapping , @GetMapping , and @PostMapping .9. What is Spring Boot’s Actuator, and how can you enable it?10. How does Spring Boot handle externalized configuration?11. What is the purpose of the @Value annotation in Spring Boot?12. How do you secure a Spring Boot application?13. What is Spring Boot’s data source auto-configuration, and how can you customize it?14. How can you create custom error pages in a Spring Boot application?15. What is the difference between @Repository and @Service annotations in Spring Boot?16. Explain the purpose of the Spring Boot TestSlice annotations: @DataJpaTest , @WebMvcTest , and @SpringBootTest .17. What is Spring Boot’s embedded servlet container, and how can you change it?18. How do you enable Cross-Origin Resource Sharing (CORS) in a Spring Boot application?19. What is Spring Boot’s caching support, and how do you use it?20. How can you create a custom Spring Boot starter?Sort: