How to get property value from application.properties file on spring boot project?

Question

Below is my code and configuration, but I can't get properties' value, always null.

application.properties

app.myProperty=1234

class AppProperties:

@Component
@Configuration
@ConfigurationProperties(prefix = "app")
public class AppProperties {

    private String myProperty;

    public String getMyProperty() {
        return myProperty;
    }

    public void setMyProperty(String myProperty) {
        this.myProperty = myProperty;
    }
}

Controller:

@RestController
@Slf4j
public class TestController {

    @Autowired
    AppProperties appProperties;

    @PostMapping(RoutePath.TEST)
    public ResultVO test() {

        try {

            log.info("property value:" + appProperties.getMyProperty());

            return ResultVOUtil.success(null);

       } catch (Exception ex) {

            return ResultVOUtil.error(CommonUtil.logExceptionError("发生错误。", null, ex));
        }
    }

}

log output:

property value:null

Possible duplicate of How to access a value defined in the application.properties file in Spring Boot — Madplay
– Madplay, Commented Apr 19, 2019 at 2:07
@Value("${app.myProperty}") int myProperty user on @Configuration — Machhindra Neupane
– Machhindra Neupane, Commented Apr 19, 2019 at 2:29

Bishal Jaiswal · Accepted Answer · 2020-03-30 09:04:06Z

2

Use @Value annotation to read the values from application.properties

@Value("${myProperty}")
private String myProperty;

edited Mar 30, 2020 at 9:04

answered Apr 19, 2019 at 7:14

Bishal Jaiswal

1,92317 silver badges17 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

andrew0007 Over a year ago

I think that it should be with {...} characters: @Value("${myProperty}")

Collectives™ on Stack Overflow

How to get property value from application.properties file on spring boot project?

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related