Spring boot 2 Converting Duration java 8 application.properties

Question

I need to define Duration value (spring.redis.timeout) by application.properties.

I was trying to use one point defined in Spri

Answer 1

The Duration in the moment (Spring-Boot 2.0.4.RELEASE) it is not possible to use together with @Value notation, but it is possible to use with @ConfigurationProperties

For Redis, you have RedisProperties and you can use the configuration:

spring.redis.timeout=5s

And:

@SpringBootApplication
public class DemoApplication {

  @Autowired
  RedisProperties redisProperties;

  public static void main(String[] args) {
    SpringApplication.run(DemoApplication.class, args);
  }

  @PostConstruct
  void init() {
    System.out.println(redisProperties.getTimeout());
  }
}

It printed (parse as 5s):

PT5S

https://docs.oracle.com/javase/8/docs/api//java/time/Duration.html#parse-java.lang.CharSequence-