Dependency Injection Articles
Articles covering the fundamentals of dependency injection and bean design as the foundation for understanding Spring Boot.
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Understanding Spring Boot Bean Lifecycle - How to Use @PostConstruct, @PreDestroy, and InitializingBean
A visual walkthrough of the Spring Bean lifecycle from creation through initialization to destruction, explaining how to choose between four implementation patterns — @PostConstruct, @PreDestroy, InitializingBean, and DisposableBean — based on your use case.
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Introduction to Spring @Bean 'Names' - When Should You Set One? How Does It Work? What's the Priority?
When developing with Spring Boot, you often have opportunities to use @Bean. One thing that can be subtly tricky is the question of 'Should I give this @Bean a name, or just leave it alone?' This article organizes, from a practical perspective, what @Bean names are used for, when you should explicitly set one, and even 'which one gets chosen (priority)' when multiple Beans exist.
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What is @Component in Spring Boot? Differences from @Bean Explained
A beginner-friendly explanation of @Component in Spring Boot. Covers the differences from @Bean, when to use each, the relationship with dependency injection, and common decision points in real-world development, with code examples.
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Spring Boot Dependency Injection Explained with Examples
Learn how Dependency Injection (DI) works in Spring Boot. Covers constructor injection, @Autowired, and the benefits of DI for testable, maintainable code — with practical examples.