Loading a list of strings from application.yml into a component

Question

After reading a couple of answers on StackOverflow, I tried to implement it as recommended, but I am still not getting a string list in my @Component.

Here is my application.yml file

appName:
    db:
        host: localhost
        username: userX
        password: passX
        driverClassName: org.postgresql.Driver
    shipment:
        providers:
            supported:
                - one
                - two

And my @Component class is

@Component
@ConfigurationProperties(prefix = "appName.shipment.providers")
public class ProviderUtil {

    List<String> supported;

    /* This class has other util methods as well */
}

Here, I expect that supported would have a list of strings one and two but is null. Can someone help me understand what is happening here and how to resolve it?

score 1 · Accepted Answer · edited Jul 28 '16 at 23:23

1

Do you have spring-boot-configuration-processor dependency on your classpath? Try to look here

And also change your bean from @Component to @Configuration

edited Jul 28 '16 at 23:23

rajadilipkolli

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answered Jul 27 '16 at 17:03

bilak

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Yup, i have added it exactly the way it is mentioned in the docs. with `optional` value set to `true` and I used `component` because of this reponse >> http://stackoverflow.com/questions/26699385/spring-boot-yaml-configuration-for-a-list-of-strings ... That being said, I have tried both with `configuration` and `component` but no luck – Em Ae Jul 27 '16 at 17:08
Try to share your code to see if we can help you somehow. – bilak Jul 27 '16 at 17:15
I figured out the issue. I hadn't provided the getters/setters. I had made the field public and i thought it would work – Em Ae Jul 27 '16 at 19:09

score 0 · Answer 2 · edited Dec 12 '22 at 12:14

0

I followed this post and added the getters and setters for the list. It worked out for me.

Code:

@Service("testservice")
@ConfigurationProperties(prefix="es")
public class TestService {

    @Value("${url.endPoint}")
    private String endpointUrl;

    private List<String> scope;

    public List<String> getScope() {
        return scope;
    }

    public void setScope(List<String> scope) {
        this.scope = scope;
    }

    // ...
}

edited Dec 12 '22 at 12:14

Prectron

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answered Apr 23 '19 at 03:31

SPS

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Please don't write everything in code-blocks. Use normal markup for your text. – JJJ Apr 23 '19 at 03:58

Loading a list of strings from application.yml into a component

2 Answers2

Code: