使用poi进行excel下载

Posted 2020-11-27 meani

进行信息表excel导出

@RequestMapping("exportExl") public ResponseEntity<byte[]> exportExl() throws Exception {     List<Customer> clist = cs.getList();     HSSFWorkbook book = new HSSFWorkbook();     HSSFSheet sheet = book.createSheet("客户信息表");     sheet.setDefaultColumnWidth(15);     //表头行创建     HSSFRow header = sheet.createRow(0);     header.createCell(0).setCellValue("职工序号");     header.createCell(1).setCellValue("联系人姓名");     header.createCell(2).setCellValue("公司名称");     header.createCell(3).setCellValue("添加时间");     header.createCell(4).setCellValue("联系电话");     //clist数据写入单元格     for (int i = 0; i < clist.size(); i++) {         Customer cus = clist.get(i);         HSSFRow row = sheet.createRow(i + 1);         row.createCell(0).setCellValue(cus.getId());         row.createCell(1).setCellValue(cus.getCompanyperson());         row.createCell(2).setCellValue(cus.getComname());         row.createCell(3).setCellValue(new SimpleDateFormat("yyyy-MM-dd").format(cus.getAddtime()));         row.createCell(4).setCellValue(cus.getComphone());     }     ByteArrayOutputStream bos = new ByteArrayOutputStream();     book.write(bos);     HttpHeaders headers = new HttpHeaders();     headers.setContentDispositionFormData("attachment", new String("客户列表.xls".getBytes("GBK"), "ISO-8859-1"));     headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);     return new ResponseEntity<byte[]>(bos.toByteArray(), headers, HttpStatus.OK);