docs: public synchronized void loadConfig(String filePath) throws Exception {
  
          if (isLoaded) {
              return;
          }
  
          String filePathInternal = filename;
  
          // 指定的路径
          if (filePath != null) {
              filePathInternal = filePath;
          }
  
          // -d 的路径
          // 优先使用 系统参数或命令行导入
          String disconfFilePath = System.getProperty(DISCONF_CONF_FILE_PATH_ARG);
          if (disconfFilePath != null) {
              filePathInternal = disconfFilePath;
          }
  
          try {
              DisconfAutowareConfig.autowareConfig(INSTANCE, filePathInternal);
          } catch (Exception e) {
              LOGGER.warn("cannot find " + filePathInternal + ", using sys var or user input.");
          }
  
          // 使用system env 导入
          DisconfAutowareConfig.autowareConfigWithSystemEnv(INSTANCE);
  
          isLoaded = true;
      }