[For Spring Boot Beginners] What is DI? I learned why @Autowired can be omitted

When learning Spring Boot, the term "DI (Dependency Injection)" comes up frequently.I organized the roles of Controller, ...

Learning Roadmap from Java to SQL to Spring Boot: The Order of Study for Aspiring Web App Developers with No Experience

I'm studying Java, but I don't know what to learn next.I often hear the terms SQL and Spring Boot, but how are they ...