spring boot get environment variable

As Per Documentation

• Spring Boot allows you to externalize your configuration so you can work with the same application code in different environments.
• You can use properties files, YAML files, environment variables and command-line arguments to externalize configuration.
• Property values can be injected directly into your beans using the @Value annotation, accessed via Spring’s Environment abstraction or bound to structured objects via @ConfigurationProperties.

spring get environment variable

It allows you to use @Value to read a property from the configuration.

@Value annotation

	@Component
public class TestRunner implements CommandLineRunner {
    @Value("${bar}")
    private String bar;
    private final Logger logger = LoggerFactory.getLogger(getClass());
    @Override
    public void run(String... strings) throws Exception {
        logger.info("Foo from @Value: {}", bar);
    }
}
	

			
	
			

		
	

References

• StackOverFlow
• Spring Boot