spring-boot - Spring Boot : When application. 属性和 application.yml 由 spring boot 应用程序加载

Question

我希望记录应用程序正在加载 application-profile.propeties 或 application.yml。怎么做。在哪种方法中，我可以听取它并检测它是成功加载还是失败。

Answer 1

您可以通过添加监听 ApplicationReadyEvent

的组件来记录加载的属性源

@Component
public class LoadedConfigFileListener implements ApplicationListener<ApplicationReadyEvent>, Ordered {

    private static final Logger logger = LoggerFactory.getLogger(LoadedConfigFileListener.class);

    @Override
    public void onApplicationEvent(ApplicationReadyEvent event) {
        MutablePropertySources propertySources = event.getApplicationContext().getEnvironment().getPropertySources();
        Iterator<PropertySource<?>> propertySourceIterator = propertySources.iterator();
        propertySourceIterator.forEachRemaining(propertySource -> logger.info("Successfully loaded: \"{}\" into application context", propertySource.getName()));
    }

    @Override
    public int getOrder() {
        return ConfigFileApplicationListener.DEFAULT_ORDER + 1;
    }
}