XSSFSheet 创建excel文件导出提示文件存在部分问题需要修复问题解决

文件兼容错误提示 解决办法：

   @GetMapping("finance/exportExcel")
    @ResponseBody
    public ResultJson exportExcel(ReviewIExcelReq req, HttpServletResponse response) {
        try {
            byte[] file=financeReviewService.exportExcel(
              req.getTeamId(),
              req.getReviewStatus(),
              req.getUserName(),
              req.getClientName(),
              req.getPaymentTimeStart(),
                    req.getPaymentTimeEnd()
            );

            String  fileName = new String(("复核收款记录-"+DateUtil.formatDate(new Date(),"yyyyMMddhhmmss")+".xlsx").getBytes("gb2312"), "ISO8859-1");
            response.setCharacterEncoding("UTF-8");
            response.setContentType("multipart/form-data;charset=UTF-8");
            response.setHeader("Content-Disposition", "attachment;fileName=\"" + fileName + "\"");

            //解决Excel打开文件提示：xxx文件中部分内容有问题。是否让我们尽量尝试恢复
            ByteArrayInputStream tempIn = new ByteArrayInputStream(file);
            response.setHeader("Content-Length", String.valueOf(tempIn.available()));

            OutputStream os=response.getOutputStream();
            os.write(file);
            os.flush();

            return ResultJson.success("success");
        } catch (Exception e) {
            return ResultJson.fail(e.getMessage());
        }
    }

注意：以下代码为解决问题核心

            //解决Excel打开文件提示：xxx文件中部分内容有问题。是否让我们尽量尝试恢复
            ByteArrayInputStream tempIn = new ByteArrayInputStream(file);
            response.setHeader("Content-Length", String.valueOf(tempIn.available()));