package com.baeldung.dddhexagonalspring; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.context.annotation.PropertySource; @SpringBootApplication @PropertySource(value = { "classpath:ddd-layers.properties" }) public class DomainLayerApplication { public static void main(final String[] args) { SpringApplication.run(DomainLayerApplication.class, args); } }