springboot如何获取yml文件的自定义参数

@Configuration //定义配置类
@Data //提供get set方法
@ConfigurationProperties(prefix = "xxx.smc") //yml配置中的路径
public class SmcConfig  {
    private String ip;
    private String name;
    private String password; 
}

<dependency>
            <groupId>org.yaml</groupId>
            <artifactId>snakeyaml</artifactId>
            <version>1.29</version>
 </dependency>

public class MqttParamObj {
    public String mqttBrokerIp;
    public Short mqttBrokerPort;
    public String userName;
    public String password;
    public String mqttClientId;
    public static MqttParamObj readConfigFile(){
        MqttParamObj mqttParamObj = null;
        File file = new File(System.getProperty("user.dir") + "/MqttParams.yml");
        try {
            InputStream fileInputStream = new FileInputStream(file);
            if(Objects.nonNull(fileInputStream)){
                Yaml yaml = new Yaml();
                mqttParamObj = yaml.loadAs(fileInputStream, MqttParamObj.class);
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        return mqttParamObj;
    }
}