Do You Know These 7 Advance Spring Boot Annotations?

Spring Boot provides many annotations to make development efficient and clean. While we know about some of the basic annotations, like @RestController, @Autowired, etc.

I am going to discuss some of the less-used Spring Boot annotations that can significantly enhance your development.

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@Conditional

Various annotations in the @Conditional family allow us to conditionally include beans in application content based on a filter.

@ConditionalOnProperty

This annotation enables a bean only if a particular property has a specific value.

@Configuration
public class FeatureConfig {
    
    @Bean
    @ConditionalOnProperty(name = "feature.enabled", havingValue = "true")
    public LoggingService loggingService() {
        return new LoggingService();
    }
}

@ConditionalOnBean and @ConditionalOnMissingBean

We use this annotation to create beans depending on whether other beans are present.

@Configuration
public class CacheConfiguration {
    
    @Bean
    @ConditionalOnMissingBean
    public…