code: public String bannerText() {
          if (null != bannerText) return bannerText;
          String bannerPath = environment.get(ENV_KEY_BANNER_PATH, null);
  
          if (StringKit.isEmpty(bannerPath) || Files.notExists(Paths.get(bannerPath))) {
              return null;
          }
  
          try {
              BufferedReader bufferedReader = Files.newBufferedReader(Paths.get(bannerPath));
              bannerText = bufferedReader.lines().collect(Collectors.joining("\r\n"));
          } catch (Exception e) {
              log.error("Load Start Banner file error", e);
          }
          return bannerText;
      }
docs: Get banner text
  
  @return return blade start banner text