java 导出数据到excel模板

public void exportData(HttpServletResponse response, TRbstReimbursementDeptDto deptDto) {

    String fileName = "预算表";
    try {
            fileName = URLEncoder.encode(fileName, "UTF-8");
            response.setContentType("application/vnd.ms-excel;charset=utf-8");

            response.setHeader("Content-Disposition", "attachment;filename=" + fileName + ".xlsx");

    // 写入list之前的数据
    Map<String, Object> map = new HashMap<String, Object>();
    map.put("year", year);

    String templateFileName = FileUtil.getPath() + "templates/年度预算导入模板.xlsx";

    ExcelWriter excelWriter =                 EasyExcel.write(response.getOutputStream()).withTemplate(templateFileName).build();
            WriteSheet writeSheet = EasyExcel.writerSheet().build();
            // 直接写入数据
            excelWriter.fill(data(deptDto), writeSheet);
            excelWriter.fill(map, writeSheet);

            excelWriter.finish();

    } catch (IOException e) {
            e.printStackTrace();
    }

}

private List<Map<String, Object>> data(TRbstReimbursementDeptDto deptDto) {
    List<Long> deptIds = deptDto.getIdList();
    List<Map<String, Object>> list = new ArrayList<>()；

    Map<String, Object> map = new HashMap<>();
    map.put("test", "111);

    list.add(map);

    return list;

}