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

Question

使用诸如

之类的构造

@Component
public class SomeClass {

    @Inject
    private Environment env;

    private String key;


    @PostConstruct
    private void init() {

        key = env.getProperty("SOME_KEY_PROPERTY");

    }

    ....
}

可以为某些字段分配某些属性。

有没有更短更简洁的形式来做到这一点？

Answer 1

@Component
public class SomeClass {

    @Value("#{environment.SOME_KEY_PROPERTY}")
    private String key;

    ....
}