5分钟下载excel模板

@PostMapping("/downloadTemplate")
@Operation(summary="下载入职excel模板")
public void downloadExcel(HttpServletResponse response){
    try{
        //获取输入流，原始模板位置
        String filePath = "template/gridPersonTemplate.xlsx";
        ClassPathResource resource = new ClassPathResource(filePath);
        InputStream bis = resource.getInputStream();
        //假如以中文名下载的话，设置下载文件名称
        String filename = "gridPersonTemplate1.xlsx";
        //转码，免得文件名中文乱码
        filename = URLEncoder.encode(filename,"UTF-8");
        //设置文件下载头
        response.addHeader("Content-Disposition", "attachment;filename=" + filename);
        //1.设置文件ContentType类型，这样设置，会自动判断下载文件类型
        response.setContentType("multipart/form-data");
        BufferedOutputStream out = new BufferedOutputStream(response.getOutputStream());
        int len = 0;
        while((len = bis.read()) != -1){
            out.write(len);
            out.flush();
        }
        out.close();
    }catch (Exception e){
        log.error(e.getMessage());
    }