If you have multiple implementations of the same interface, Spring needs to know which bean to inject into a class.

In this article, we will explore what are the different approaches to injecting beans conditionally when you have multiple implantation of a component or service.

• Option-1: Using @Primary Bean Annotation
• Option-2: Autowiring using @Qualifier
• Option-3: Using ApplicationContext to Dynamically Select Beans
• Option-4: Custom Annotation and Bean Factory
• Option-5: Bean Selection Using Custom Conditions

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