Spring boot - Get enviromental variable

Question

I have to get a enviromental variable and I can't inject.

@Component
@EnableConfigurationProperties
public class Client {

    @Autowired
    RestTemplate restTemplate;

    @Value("${BASE_URL}")
    private String baseUrl;

    public List<Car> getAllCars(){
        ResponseEntity<List<Car>> res = restTemplate.exchange(baseUrl.concat("/car"),HttpMethod.GET,null, 
                new ParameterizedTypeReference<List<Car>>() {});
        return res.getBody();
    }
}

I am not capable of inject basUrl that I have in the env.

Could some tell how I can do it?

I read the following pages and I am very beginner because I can't understan anything. https://docs.spring.io/spring-boot/docs/current/reference/html/boot-features-external-config.html https://www.mkyong.com/spring-boot/spring-boot-configurationproperties-example/

Also I have tried with

@Autowired
private Environment env;

Always the result is null.

What does your properties file look like? Is it definitely on the classpath? — Michael, Mar 12 '19 at 21:11
Usally environment properties aren't uppercase. Maybe you just used the wrong key — LppEdd, Mar 12 '19 at 21:13
I have used both @Value("${base.url}") and @Value("${BASE_URL}") and allways the same. — Francisco Jimenez, Mar 12 '19 at 21:16
You sure that BASE_URL env variable is set in the same context where you run your application? Can you clarify how do you set your environment variable? — Matej, Mar 12 '19 at 21:19
I have made export BASE_URL=.... and it is present inwhen get those variables. — Francisco Jimenez, Mar 12 '19 at 21:20
And when you export BASE_URL you invoke Java from the same shell? — Matej, Mar 12 '19 at 21:23
How about setting the environment variable in IDE via run configuration? Your exported variable is not visible outside the shell it's defined in and its children. — Matej, Mar 12 '19 at 21:28
mvn clean test is working. thanks now I have to know ow set env proerties in Intellij. — Francisco Jimenez, Mar 12 '19 at 21:42
https://stackoverflow.com/questions/45696203/intellij-idea-global-environment-variable-configuration?rq=1 — Matej, Mar 12 '19 at 21:46

Arvind Gangam · Answer 1 · 2019-03-12T22:14:40.070

0

please try

@Value("#{systemProperties['BASE_URL']}")

edited Mar 12 '19 at 22:14

answered Mar 12 '19 at 21:14

Arvind Gangam

86
6

Sorry I don't want to use application.proeries I need to get from the environmental variables. – Francisco Jimenez Mar 12 '19 at 21:19
in that case please try @Value("#{systemProperties['BASE_URL']}") – Arvind Gangam Mar 12 '19 at 21:38

Spring boot - Get enviromental variable

1 Answers1