使用springboot实现excel下载

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• 前言
• 一、使用步骤
• • 1.yml
  • 2.controller
• 总结

使用springboot实现excel下载

提示：以下是本篇文章正文内容，下面案例可供参考

在D盘下放你要下载的excel文件

templates:
  whitepath: D:\template.xlsx

 @RequestMapping("/download")
    public CommRetVo downloadWorkHourRecordTemplate(HttpServletResponse response) {
        CommRetVo commRetVo = new CommRetVo();
        try {
//            Resource resource = new ClassPathResource("static/excelTemplate/template.xlsx");
           // Resource resource = new ClassPathResource(templateswhitepath);
            File file = new File(templateswhitepath);
            String filename = "template.xlsx";
            InputStream inputStream = new FileInputStream(file);
            //强制下载不打开
            response.setContentType("application/force-download");
            OutputStream out = response.getOutputStream();
            //使用URLEncoder来防止文件名乱码或者读取错误
            response.setHeader("Content-Disposition", "attachment; filename=" + URLEncoder.encode(filename, "UTF-8"));
            int b = 0;
            byte[] buffer = new byte[1000000];
            while (b != -1) {
                b = inputStream.read(buffer);
                if (b != -1) {
                    out.write(buffer, 0, b);
                }
            }
            inputStream.close();
            out.close();
            out.flush();
            commRetVo.setCode("1");
            commRetVo.setMsg("下载成功");

        } catch (IOException e) {

            e.printStackTrace();
            commRetVo.setCode("0");
            commRetVo.setMsg("失败");
        }
        return commRetVo;
    }