Spring下载 Excel格式打不开Java网页实现下载文件功能，下载下来打不开怎么解决

下载下来打开出现下面错误：

实现代码逻辑是：使用Dubbo的生产者消费者进行远程调用，服务器本地查询数据库生成excel在本地然后传给消费者的File，消费者接收到File然后进行下载操作。

方案一：未解决

@ApiOperation(value = "批量下载标注列表根据对象查询最多导出200条数据")
    @RequestMapping(value = "/downloadEventTagProcess", method = RequestMethod.GET)
    public CorpusResponse downloadEventTagProcessFile(EventTagProcessVo eventTagProcessVo, HttpServletResponse httpServletResponse) throws Exception {
        Long nowTIme = System.currentTimeMillis();
        CorpusResponse response = CorpusResponseBuilder.newSuccessResponse();
        File scFileDir = eventTagProcessFacade.downloadInfoTemplate(eventTagProcessVo);
        try {
            String fileName = "标注列表" + scFileDir.getName();
           fileName = URLEncoder.encode(fileName, "utf-8");
            httpServletResponse.setHeader("Content-disposition", "attachment;filename=" + fileName);
            httpServletResponse.setCharacterEncoding("utf-8");
            httpServletResponse.setContentType("application/octet-stream;charset=utf-8");
            InputStream inputStream = new FileInputStream(scFileDir);
            OutputStream  outputStream= httpServletResponse.getOutputStream();
            IOUtils.copy(inputStream,outputStream);
            inputStream.close();
            outputStream.close();
        } catch (IOException e) {
            response = CorpusResponseBuilder.newErrorResponse(e);
        }
        Long nowTime = System.currentTimeMillis();
        System.out.println("处理请求发生时长：" + (nowTIme - nowTime) / 1000);
        return response;
    }

方案2也没有解决问题所在：

if (scFileDir != null) {
//
//                // 实现文件下载
//                byte[] buffer = new byte[1024];
//                FileInputStream fis = null;
//                BufferedInputStream bis = null;
//                try {
//                // 配置文件下载
//                httpServletResponse.setHeader("content-type", "application/octet-stream");
//                httpServletResponse.setContentType("application/octet-stream");
//                // 下载文件能正常显示中文
//                httpServletResponse.setHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(scFileDir.getName(), "UTF-8"));
//                    fis = new FileInputStream(scFileDir);
//                    bis = new BufferedInputStream(fis);
//                    OutputStream os = httpServletResponse.getOutputStream();
//                    int i = bis.read(buffer);
//                    while (i != -1) {
//                        os.write(buffer, 0, i);
//                        i = bis.read(buffer);
//                    }
//                    System.out.println("Download the song successfully!");
//                }
//                catch (Exception e) {
//                    System.out.println("Download the song failed!");
//                }
//                finally {
//                    if (bis != null) {
//                        try {
//                            bis.close();
//                        } catch (IOException e) {
//                            e.printStackTrace();
//                        }
//                    }
//                    if (fis != null) {
//                        try {
//                            fis.close();
//                        } catch (IOException e) {
//                            e.printStackTrace();
//                        }
//                    }
//                }
//            }

方案三：也是如此。

@RequestMapping(value = "/downloadInfoTemplate", method = RequestMethod.GET)
    public ResponseEntity<Object> downloadFile(HttpServletResponse httpServletResponse) throws FileNotFoundException {
        File  file= informationImportData.downloadInfoTemplate();
        HttpHeaders headers = new HttpHeaders();
        headers.add("Cache-Control","no-cache,no-store,must-revalidate");
        headers.add("Pragma","no-cache");
        headers.add("Expires","0");

        ResponseEntity<Object> responseEntity =  ResponseEntity.ok().headers(headers)
                .contentLength(0)
                .contentType(MediaType.parseMediaType("application/text")).body("文件模板不存在！请联系管理员！");
        if(null!=file){
            InputStreamResource resource = new InputStreamResource(new FileInputStream((file)));
            headers.add("Content-Disposition",String.format("attachment;filename=\"%s\"",file.getName()));
            responseEntity = ResponseEntity.ok()
                    .headers(headers)
                    .contentLength(file.length())
                    .contentType(MediaType.parseMediaType("application/text"))
                    .body(resource);
        }
        return responseEntity;
    }

主要解决办法是在于前端Vue接受之后进行读取流生成文件就可以的