关于springboot通过jxls用模板导出excel的前后台实现

后端代码

 public void exportExcel(@RequestParam(required = true) String Id, HttpServletResponse response,
            HttpServletRequest request) {
        String msg ="";
        try {
        	Dto.setId(Id);
        	List<HashMap<String, Object>> list = tbsMainInfoService.exportExcel(Dto);
            //文件名称
            String filename = "导出目录";
             String agent = request.getHeader("User-Agent");
             String filenameEncoder = "";
             if (agent.contains("MSIE")) {
                 // IE浏览器
                 filenameEncoder = URLEncoder.encode(filename, "utf-8");
                 filenameEncoder = filenameEncoder.replace("+", " ");
             } else if (agent.contains("Firefox")) {
                 // 火狐浏览器
                 BASE64Encoder base64Encoder = new BASE64Encoder();
                 filenameEncoder = "=?utf-8?B?" + base64Encoder.encode(filename.getBytes("utf-8")) + "?=";
             } else {
                 // 其它浏览器
                 filenameEncoder = URLEncoder.encode(filename, "utf-8");
             }
             //获取配置路径
             String url = FtpClientUtil.getStaticFile() + "/" + "目录模板.xlsx";
             //获取文件流
             InputStream in = new FileInputStream(url);
          // 创建操作excel文件对象
             XLSTransformer transformer = new XLSTransformer();
             // 设置ContentType请求信息格式
             response.setContentType("application/vnd.ms-excel");
             response.setHeader("Content-disposition", "attachment;filename=" + filenameEncoder + ".xlsx");
             // 要下载的这个文件的类型-----客户端通过文件的MIME类型去区分类型
             response.setContentType(request.getServletContext().getMimeType(filename));
             ServletOutputStream outputStream = response.getOutputStream();
             Map<String, Object> map = new HashMap<String, Object>();
             map.put("list", list);
             Workbook workbook = transformer.transformXLS(in, map);
             workbook.write(outputStream);
             workbook.close();
		} catch (Exception e) {
			// TODO: handle exception
			  e.printStackTrace();
			  msg = e.getMessage();
			  throw new BusinessException("导出失败");
		}
    }

　　模板

 前台vue代码

 Export() {
             let api =""
             let a = document.createElement('a');
            a.href = api;
            a.click();
        },