springboot 读取配置文件的对象

1. 首先在yml文件中定义对象

 yml 的配置
 person:
   userName : gao
   age : 123

2. 新建一个Person的类，加上扫描注解和读取配置文件的注解，配置文件中要填写对象前缀

@Component
@ConfigurationProperties(prefix = "person")
public class Person implements Serializable {
    private String userName;

    private Integer age;

    public String getUserName() {
        return userName;
    }

    public void setUserName(String userName) {
        this.userName = userName;
    }

    public Integer getAge() {
        return age;
    }

    public void setAge(Integer age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "Person{" +
                "userName='" + userName + '\'' +
                ", age=" + age +
                '}';
    }
}

3. 使用实例

@RestController
public class ShareController {

    @Autowired
    private UserService userService;

    @Autowired
    private Person person;

    @RequestMapping("share")
    public String share() {
        return userService.getUserById(1L).toString() + person.getUserName() + person.getAge();
    }
}