vue+springmvc导出excel数据的实现代码

vue端处理

this.$http.get(this.service + '/user/excel',{responseType: 'blob'}).then(({data})=> {
   console.info(typeof data)
   var a = document.createElement('a');
   var url = window.URL.createObjectURL(data);
   a.href = url;
   a.download = '用户统计信息.xls';
   a.click();
   window.URL.revokeObjectURL(url);
  })

web端处理

  int total=userBsService.getCount(null);
  List<UserVo> list=userBsService.getList(null, 1, total);
  String fileName = new Date().getTime() + "";
   XSSFWorkbook wb=new XSSFWorkbook();
   Sheet sheet=wb.createSheet();
   Row row0=sheet.createRow(0);
   String titleName[] = {"用户账号", "充值总金额", "邀请总人数", "社群组"};//列名
   for(int i=0;i<titleName.length;i++){
     sheet.setColumnWidth(i, 10 * 512);
     row0.createCell(i).setCellValue(titleName[i]);
   }
   int i=0;
   for(UserVo v:list){
     Row row=sheet.createRow(i+1);
     if(!StringUtils.isEmpty(v.getMobile())){
        row.createCell(0).setCellValue(v.getMobile());
      }else{
        row.createCell(0).setCellValue(v.getEmail());
      }
     row.createCell(1).setCellValue(BigDecimalUtil.outputConvert(v.getAmount()));
     row.createCell(2).setCellValue(v.getCounts());
     row.createCell(3).setCellValue(v.getGroups());
    i++;
   }
   ByteArrayOutputStream os = new ByteArrayOutputStream();
  try{
     try {
      wb.write(os);
      wb.close();
     } catch (IOException e) {
       e.printStackTrace();
     }
     byte[] content = os.toByteArray();
     InputStream is = new ByteArrayInputStream(content);
     response.reset();
     response.setContentType("application/vnd.ms-excel;charset=utf-8");
     response.setHeader("Content-Disposition", "attachment;filename="+ new String((fileName + ".xls").getBytes(), "iso-8859-1"));
     ServletOutputStream out = response.getOutputStream();
     BufferedInputStream bis = null;
     BufferedOutputStream bos = null;
     try {
       bis = new BufferedInputStream(is);
       bos = new BufferedOutputStream(out);
       byte[] buff = new byte[2048];
       int bytesRead;
       while (-1 != (bytesRead = bis.read(buff, 0, buff.length))) {
         bos.write(buff, 0, bytesRead);
       }
     } catch (final IOException e) {
       throw e;
     } finally {
       if (bis != null)
         bis.close();
       if (bos != null)
         bos.close();
     }
   }catch (Exception e){
   }
  return null;

总结

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