服务端

  1.     @GetMapping("/export")
  2.     public void exportFile(MarkText markText, HttpServletResponse response) throws UnsupportedEncodingException {
  3.         try (BufferedOutputStream buff = new BufferedOutputStream(response.getOutputStream())) {
  4.             //校验
  5.             if (StringUtils.isBlank(markText.getFileName())) {
  6.                 return;
  7.             }
  8.             //查询数据
  9.             List<MarkText> list = markTextService.exportFile(markText);
  10.             /*
  11.              * 导出
  12.              */
  13.             response.setContentType("text/plain");
  14.             String fileName = markText.getFileName();
  15.             response.setHeader("Content-Disposition", "attachment; filename=" + java.net.URLEncoder.encode(fileName, "UTF-8"));
  17.             StringBuilder write = new StringBuilder();
  18.             String enter = "\r\n";
  19.             String tab = "\t";
  20.             // 把内容写入文件
  21.             if (list.size() > 0) {
  22.                 for (MarkText text : list) {
  23.                     write.append(text.getOrginText()).append(tab)
  24.                             .append(text.getLabeledText()).append(tab)
  25.                             .append(text.getSequencedText()).append(enter);
  26.                 }
  27.             }
  28.             buff.write(write.toString().getBytes(StandardCharsets.UTF_8));
  29.             buff.flush();
  30.         } catch (Exception e) {
  31.             log.error(e.toString(), e);
  32.         }
  34.     }

web端

vue elementUI

  1.     exportFile(fileName) {
  2.       const url = '/similar/export?fileName=' + fileName
  3.       const a = document.createElement('a')
  4.       a.download = 'test'
  5.       a.href = url
  6.       a.click()
  7.     }