Spring Annotations
Explore important Spring annotations including @Component, @Service, @Repository, @Controller, @Autowired, @Qualifier, and @Primary. Understand their roles in defining beans, resolving dependencies, and managing injection in various application layers to build well-structured Spring applications.
We'll cover the following...
We'll cover the following...
- What is the purpose of the @Component annotation?
- What is the difference between @Component, @Service, @Repository, and @Controller?
- Why is @Primary annotation used?
- Why is @Qualifier annotation used?
- Which annotations takes precedence: @Primary or @Qualifier?
- Why is the @Required annotation used?
- What is the purpose of @Autowired annotation?
- Both @Bean and @Component annotations create beans. What is the difference between the two?
- What is the difference between @Inject and @Autowired in Spring? Which one to use under which condition?