@Profile for environment-specific beans in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to activate a bean only for the 'dev' environment.

Spring Boot

@Profile("[1]")
@Component
public class DevService {}

Drag options to blanks, or click blank then click option'

Adefault

Bprod

Cdev

Dtest

Attempts:

3 left

💡 Hint

Common Mistakes

Using a profile name that does not match any active environment.

Forgetting to annotate the class with @Component.

The @Profile annotation activates the bean only when the specified profile is active. Here, 'dev' activates the bean for the development environment.

2fill in blank

medium

Complete the code to define a bean active only when the 'prod' profile is set.

Spring Boot

@Profile("[1]")
@Bean
public DataSource dataSource() {
    return new DataSource();
}

Drag options to blanks, or click blank then click option'

Alocal

Bprod

Ctest

Ddev

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'dev' or 'test' instead of 'prod' for production beans.

Not annotating the method with @Bean.

The @Profile annotation with 'prod' ensures this bean is created only in the production environment.

3fill in blank

hard

Fix the error in the annotation to activate the bean only for the 'test' profile.

Spring Boot

@Profile([1])
@Component
public class TestService {}

Drag options to blanks, or click blank then click option'

A"test"

Btest

C'test'

D["test"]

Attempts:

3 left

💡 Hint

Common Mistakes

Omitting quotes around the profile name.

Using single quotes instead of double quotes.

The @Profile annotation requires a string literal with double quotes around the profile name.

4fill in blank

hard

Fill both blanks to create a bean active for either 'dev' or 'test' profiles.

Spring Boot

@Profile([1])
@Component
public class MultiEnvService {}

Drag options to blanks, or click blank then click option'

A{"dev", "test"}

B"dev"

C"dev" | "test"

D"dev", "prod"

Attempts:

3 left

💡 Hint

Common Mistakes

Using bitwise OR operator '|' instead of comma.

Not enclosing profiles in quotes.

The @Profile annotation accepts multiple profiles as a comma-separated list of string literals to activate the bean for any of those profiles.

5fill in blank

hard

Fill all three blanks to define a bean active only when the 'prod' profile is active and annotate it as a component.

Spring Boot

[1]
@Profile([2])
public class [3] {}

Drag options to blanks, or click blank then click option'

A@Component

B"prod"

CProdService

D@Service

Attempts:

3 left

💡 Hint

Common Mistakes

Using @Service instead of @Component if the question expects @Component.

Omitting quotes around the profile name.

Using a class name that does not match the profile.

The class must be annotated with @Component to be a Spring bean, @Profile("prod") to activate it only in production, and named appropriately.