服务端代码

  1. @GetMapping("/export")
  2.     public void exportFile(MarkText markText, HttpServletResponse response) throws UnsupportedEncodingException {
  3.         if (StringUtils.isBlank(markText.getFileName())) {
  4.             return;
  5.         }
  6.         List<MarkText> list = markTextService.exportFile(markText);
  7.         /**
  8.          * 导出
  9.          */
  10.         response.setContentType("text/plain");
  11.         String fileName = markText.getFileName();
  12.         response.setHeader("Content-Disposition", "attachment; filename=" + java.net.URLEncoder.encode(fileName, "UTF-8"));
  14.         BufferedOutputStream buff = null;
  15.         StringBuffer write = new StringBuffer();
  16.         String enter = "\r\n";
  17.         ServletOutputStream outSTr = null;
  18.         try {
  19.             outSTr = response.getOutputStream();
  20.             buff = new BufferedOutputStream(outSTr);
  21.             // 把内容写入文件
  22.             if (list.size() > 0) {
  23.                 for (int i = 0; i < list.size(); i++) {
  24.                     MarkText text = list.get(i);
  25.                     write.append(text.getOrginText() + "," + text.getLabeledText() + "," + text.getSequencedText());
  26.                     write.append(enter);
  27.                 }
  28.             }
  29.             buff.write(write.toString().getBytes("UTF-8"));
  30.             buff.flush();
  31.             buff.close();
  32.         } catch (Exception e) {
  33.             e.printStackTrace();
  34.         } finally {
  35.             try {
  36.                 buff.close();
  37.                 outSTr.close();
  38.             } catch (Exception e) {
  39.                 e.printStackTrace();
  40.             }
  41.         }
  42.     }

浏览器代码

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