Spring boot YAML Config not reading all values

Question

I'm trying to setup and use a YAML as config file in my Spring Boot 1.5.1 project.

My YAML file looks like the following:

hue:
    user: cdKjsOQIRY8hqweAasdmx-WMsn
    ip: "http://192.168.1.69"
    scenes:
        sunstatus:
            enabled: true
            id: 93yv8JekmAneCU9
            group: 1
        disable:
            enabled: true
            id: 93yv8JekmAneCU9
            group: 6

It works perfectly fine to read hue.getUser(). However, hue.getScenes() returns null for some reason. My Java code for the Hue Config looks like the following:

@Configuration
@ConfigurationProperties(prefix = "hue")
public class Hue {
    private String user;
    private String ip;
    private Scenes scenes;

    /*
     * Getters and setters of course
     */

    public class Scenes {
        private Sunstatus sunstatus;
        private Disable disable;

        /*
         * Getters and setters
         */

        public class Sunstatus {
            private boolean enabled;
            private String id;
            private String group;

            /*
             * Getters and setters
             */
        }

        public class Disable {
            private boolean enabled;
            private String id;
            private String group;

            /*
             * Getters and setters
             */
        }
    }
}

I've tried as well to annotate the each class with prefix as well, both in the format of hue.scenes.sunstatus, scenes.sunstatus and just sunstatus as well.

Additionally I also tried to use the @Value annotation a bit without any luck.

It's the same results if I keep the data in application.yml or in an external file. Can always only reach getUser().

What am I doing wrong here?

Frederik Heremans · Answer 1 · 2017-02-09T21:18:37.230

0

I see you are using public non-inner classes for nested configuration, so you should add the @NestedConfigurationProperty instead:

public class Scenes {

    @NestedConfigurationProperty
    private Sunstatus sunstatus;

    @NestedConfigurationProperty
    private Disable disable;

Nested properties

You can use the @NestedConfigurationProperty annotation on a field to indicate that a regular (non-inner) class should be treated as if it were nested.

So either add the annotations (if you plan on using the classes elsewhere) or make them public static.

edited Feb 09 '17 at 21:18

answered Feb 09 '17 at 20:49

Frederik Heremans

648
4
10

Thanks for the tip, but after switching to that I'm still having the same exact same issue. – Viktor Plane Feb 09 '17 at 21:03
Have you tried the making the classes public static, like the reference states, adding the correct getters/setters? – Frederik Heremans Feb 09 '17 at 21:19
Yep made sure to try that again, but still null. – Viktor Plane Feb 10 '17 at 05:28

score 0 · Answer 2 · answered Feb 10 '17 at 04:15

try this.

@Configuration
@ConfigurationProperties(prefix = "hue")
public class Hue {
    private String user;
    private String ip;
    private Scenes scenes = new Scenes();

    /*
     * Getters and setters of course
     */

    public class Scenes {
        private Sunstatus sunstatus = new Sunstatus();
        private Disable disable = new Disable();

        /*
         * Getters and setters
         */

        public class Sunstatus {
            private boolean enabled;
            private String id;
            private String group;

            /*
             * Getters and setters
             */
        }

        public class Disable {
            private boolean enabled;
            private String id;
            private String group;

            /*
             * Getters and setters
             */
        }
    }
}

Scenes gets initialized now with those changes, but it it still returning null from example: hue.getScenes().getSunstatus().getId() — Viktor Plane, Feb 10 '17 at 05:29

Spring boot YAML Config not reading all values

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