文档： https://docs.spring.io/spring-boot/docs/current/reference/html/features.html#features.external-config.yaml.mapping-to-properties

test.yml

application:
  file-name: application.yml


spring:
  profiles:
    active: test,test2,none


my:
  num: ${random.long}
  num2: ${random.int(100,200)}
  sports:
    - swim
    - run

test2.yml

test2:
  name: test2
  version: 1.0

 
OtherTest.java

@SpringBootTest
public class OtherTest {

    @Test
    @SneakyThrows
    void contextLoads9() {

        YamlPropertiesFactoryBean yamlPropertiesFactoryBean = new YamlPropertiesFactoryBean();
        // yamlPropertiesFactoryBean.setResources(new FileUrlResource("E:\\IDEA_Project\\Prosonal\\spirngboot226\\src\\main\\resources\\test.yml"));
        yamlPropertiesFactoryBean.setResources(new ClassPathResource("test.yml"),new ClassPathResource("test2.yml"));
        Properties properties = yamlPropertiesFactoryBean.getObject();
        Console.log(properties);



        YamlMapFactoryBean yamlMapFactoryBean = new YamlMapFactoryBean();
        // yamlPropertiesFactoryBean.setResources(new FileUrlResource("E:\\IDEA_Project\\Prosonal\\spirngboot226\\src\\main\\resources\\test.yml"));
        yamlMapFactoryBean.setResources(new ClassPathResource("test.yml"),new ClassPathResource("test2.yml"));
        Map<String, Object> map = yamlMapFactoryBean.getObject();
        Console.log(map);

    }
    
}