code: public void mapSheet2Excel(List<MapSheetWrapper> sheetWrappers, String templatePath, OutputStream os)
              throws Excel4JException {
  
          try (SheetTemplate sheetTemplate = exportExcelByMapHandler(sheetWrappers, templatePath)) {
              sheetTemplate.write2Stream(os);
          } catch (IOException e) {
              throw new Excel4JException(e);
          }
      }
docs: 基于模板、注解的多sheet导出{@code Map[String, List[?]]}类型数据
  模板定制详见定制说明
  
  @param sheetWrappers sheet包装类
  @param templatePath  Excel模板
  @param os            输出流
  @throws Excel4JException 异常