Java Spring: How to use `@Value` annotation to inject an `Environment` property?

Question

Using a construct such as

@Component public class SomeClass {      @Inject     private Environment env;      private String key;       @PostConstruct     private void init() {          key = env.getProperty("SOME_KEY_PROPERTY");      }      .... } 

it is possible to assign some field with some property.

Is there a shorter, more concise form to do this?

Answer 1

@Component public class SomeClass {      @Value("#{environment.SOME_KEY_PROPERTY}")     private String key;      .... } 

Answer 2

You should be able to do this(assuming that you have a PropertySourcesPlaceHolderConfigurer registered)

@Value("${SOME_KEY_PROPERTY}") private String key;