Java模板下载（模板可数据校验版）

private final String staffSupervisionImportTemplateName = "static/public/templates/importDemo/staffSupervisionImportTemplatle";
private final String postfix = ".xlsx"; 
public static final String CONTENT_TYPE_XLS = "application/vnd.ms-excel";（在一个公用类型类中）


  /**
     * 人员监督下载导入模板
     *
     * @param response
     */
    public void downloadTemplate(HttpServletResponse response) {
        XSSFWorkbook wb;
        try {
            wb = ExcelUtil.readFileXSSF("classpath:" + staffSupervisionImportTemplateName + this.postfix);
            ByteArrayOutputStream bos = new ByteArrayOutputStream();
            wb.write(bos);
            byte[] byteArray = bos.toByteArray();
            InputStream in = new ByteArrayInputStream(byteArray);

            response.setContentType(ContentType.CONTENT_TYPE_XLS);
            String fileName = "人员监督计划导入模板";
            response.setHeader("Content-disposition",
                    "attachment; filename=\"" + WordUtil.changeNameToDownload(fileName + this.postfix)
                            + "\"");
            FileCopyUtils.copy(in, response.getOutputStream());
        } catch (Exception e) {
            dbLogger.error(LogUtil.formatMessage("导出人员监督计划导入模板失败。", e), LogUtil.buildDefaultLogArgs());
        }
    }