spring @Profiles和@PropertySource实现根据环境切换配置文件

@SpringBootApplication
@PropertySource(value = "classpath:config-${spring.profiles.active}.yml",
        encoding = "UTF-8",
        factory = YmlPropertySourceFactory.class)
public class Application {
 
    public static void main(String[] args) {
        try {
            SpringApplication.run(Application.class, args);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

public class YmlPropertySourceFactory extends DefaultPropertySourceFactory {
    @Override
    public PropertySource<?> createPropertySource(String name, EncodedResource resource) throws IOException {
        String sourceName = name != null ? name : resource.getResource().getFilename();
        if (!resource.getResource().exists()) {
            return new PropertiesPropertySource(sourceName, new Properties());
        } else if (sourceName.endsWith(".yml") || sourceName.endsWith(".yaml")) {
            Properties propertiesFromYaml = loadYml(resource);
            return new PropertiesPropertySource(sourceName, propertiesFromYaml);
        } else {
            return super.createPropertySource(name, resource);
        }
    }
 
    private Properties loadYml(EncodedResource resource) throws IOException {
        YamlPropertiesFactoryBean factory = new YamlPropertiesFactoryBean();
        factory.setResources(resource.getResource());
        factory.afterPropertiesSet();
        return factory.getObject();
    } 
}

JAVA_OPTS=" -Xms1024m -Xmx1024m  -XX:PermSize=512m -XX:MaxPermSize=512m -Dspring.profiles.active=dev"

spring:
  profiles:
    active: @spring.active@

<profiles>
	<profile>
		<id>local</id>
		<properties>
			<spring.active>local</spring.active>
		</properties>
		<activation>
			<activeByDefault>true</activeByDefault>
		</activation>
	</profile>
	<profile>
		<id>dev</id>
		<properties>
			<spring.active>dev</spring.active>
		</properties>
	</profile>
</profiles>