How can you ensure a Spring component annotated with @Component is only registered when the 'test' profile is active?

hard📝 Application Q8 of 15

Spring Boot - Inversion of Control and Dependency Injection

How can you ensure a Spring component annotated with @Component is only registered when the 'test' profile is active?

AAdd <code>@ConditionalOnProperty("test")</code> to the class.

BUse <code>@Component("test")</code> to specify the profile.

CSet <code>spring.profiles.active=test</code> in the component class.

DAnnotate the class with <code>@Profile("test")</code> alongside <code>@Component</code>.

Step-by-Step Solution

Solution:

Step 1: Use @Profile annotation
The @Profile annotation restricts bean registration to specified profiles.
Step 2: Combine with @Component
Annotate the class with both @Component and @Profile("test") to activate only in 'test' profile.
Step 3: Other options incorrect
@Component("test") sets bean name, not profile; spring.profiles.active is a property, not annotation; @ConditionalOnProperty checks properties, not profiles.
Final Answer:
Annotate the class with @Profile("test") alongside @Component. -> Option D
Quick Check:
Does @Profile control bean activation by profile? Yes [OK]

Quick Trick: Use @Profile with @Component for profile-specific beans [OK]

Common Mistakes:

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