Spring Bean Injection 이야기(feat. 모두가 다 알고 있는 스프링빈, 정말 다 알고 있는가?)

Spring Bean Injection 이야기(feat. 모두가 다 알고 있는 스프링빈, 정말 다 알고 있는가?)

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Comparison of @Qualifier and @Primary

@Qualifier and @Primary are annotations used in Spring for dependency injection. They serve to resolve ambiguity when multiple beans of the same type exist. While @Primary indicates a default bean to be injected when there are multiple candidates, @Qualifier allows for the specification of a particular bean by name.
In scenarios where both annotations are present, @Qualifier takes precedence over @Primary. This enables developers to have fine-grained control over which bean is injected into a particular dependency. Understanding when to use each annotation is crucial for effective dependency management in Spring applications.