Load spring-boot properties from json file

Question

Is it possible to load spring-boot config from a .json file as opposed to .yaml or .properties? From looking at the documentation, this isn\'t supported out of the box - I\'

Answer 1

2 steps

public String asYaml(String jsonString) throws JsonProcessingException, IOException {
    // parse JSON
    JsonNode jsonNodeTree = new ObjectMapper().readTree(jsonString);
    // save it as YAML
    String jsonAsYaml = new YAMLMapper().writeValueAsString(jsonNodeTree);
    return jsonAsYaml;
}

Got from the post

and

public class YamlFileApplicationContextInitializer implements ApplicationContextInitializer {
  @Override
  public void initialize(ConfigurableApplicationContext applicationContext) {
    try {
        Resource resource = applicationContext.getResource("classpath:file.yml");
        YamlPropertySourceLoader sourceLoader = new YamlPropertySourceLoader();
        PropertySource yamlTestProperties = yamlTestProperties = sourceLoader.load("yamlTestProperties", resource, null);
        applicationContext.getEnvironment().getPropertySources().addFirst(yamlTestProperties);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
  }
}

Got from the post

So you can combine both. Load your json as resource and convert to yaml and then add to Environment all the found properties