springBoot通过YamlPropertiesFactoryBean读取yaml配置文件

public static Properties getProperties(){
   String fileName = “/”；
 
    YamlPropertiesFactoryBean yaml = new YamlPropertiesFactoryBean();
    try {
        //绝对路径
        //(new FileSystemResource(fileName))；
        (new ClassPathResource(fileName));
        
    }catch (Exception e){
        
    }
    Properties properties =  ();
    String = ("key");
}