SpringBoot读取yml文件的3种方式

name: Zhangsan

public class MyBean {
    @Value("${name}")
    private String name;
}

@Autowired
private Environment environment;
public void doSomething() {
    String name = environment.getProperty("name");
}

my: 
    name: Zhangsan
    age: 18

@Component 
@ConfigurationProperties(prefix = "my")
public class MyProps {
    private String name;
    private int age;
    // getter and setter
}

@Bean
public static PropertySourcesPlaceholderConfigurer properties() {
    YamlPropertiesFactoryBean factory = new YamlPropertiesFactoryBean();
    factory.setResources(new ClassPathResource("application.yml"));
    factory.getObject().forEach((k, v) -> System.out.println(k + ": " + v));
    return factory; 
}

my:
  name: Zhangsan 
---
my: 
  name: Lisi

@Component("first") 
@YamlComponent(value = "my.first")
public class FirstProps {
    private String name;
}
@Component("second")  
@YamlComponent(value = "my.second")
public class SecondProps {
    private String name; 
}