code: public static String getConfPath() {
          String classpath = CommonUtils.class.getResource("/").getPath();
          String confPath = classpath + "../conf/";
          if (new File(confPath).exists()) {
              return confPath;
          } else {
              return classpath;
          }
      }
docs: 获取conf文件夹所在路径
  
  @return 路径地址