导出数据 org.apache.poi.hssf.usermodel.HSSFWorkbook

Map<String,Object> params = (Map<String, Object>) request.getSession().getAttribute(DOWNLOADPARAMSKEY);

if(null == params){
response.getWriter().print("error request");
return;
}

String fileName = String.format("%s.xls", new Date().getTime());
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition", "attachment; filename=" + fileName);

List<ExportSigningInfo> applyInfoList = signingOnlineNewService.getExportSigningInfoList(params);
log.info("data size:"+ applyInfoList.size());

HSSFWorkbook book = new HSSFWorkbook();

HSSFSheet sheet = book.createSheet("在线签约申请记录");
sheet.setColumnWidth(0, 30 * 256);
sheet.setColumnWidth(1, 13 * 256);
sheet.setColumnWidth(2, 10 * 256);
sheet.setColumnWidth(3, 35 * 256);
sheet.setColumnWidth(4, 10 * 256);
sheet.setColumnWidth(5, 10 * 256);
sheet.setColumnWidth(6, 20 * 256);
sheet.setColumnWidth(7, 10 * 256);
sheet.setColumnWidth(8, 20 * 256);
sheet.setColumnWidth(9, 10 * 256);
sheet.setColumnWidth(10, 10 * 256);
sheet.setColumnWidth(11, 12 * 256);
sheet.setColumnWidth(12, 10 * 256);
sheet.setColumnWidth(13, 10 * 256);

HSSFRow titleRow = sheet.createRow((short)0);

CellStyle titleStyle = getTitleStyle(book);
for (int i = 0; i < TITLES.length; i++) {
HSSFCell cell = titleRow.createCell(i);
cell.setCellStyle(titleStyle);
cell.setCellValue(TITLES[i]);
}

//		CellStyle gridStyle = getRowStyle(book);
for (int i = 0; i < applyInfoList.size(); i++) {
HSSFRow gridRow = sheet.createRow(1+i);
//			gridRow.setRowStyle(gridStyle);
// 合同流水号、
gridRow.createCell(0).setCellValue(applyInfoList.get(i).getSerialNum());
// 申请人手机号、
gridRow.createCell(1).setCellValue(applyInfoList.get(i).getApplyMobile());
// 个人/公司名称、
gridRow.createCell(2).setCellValue(applyInfoList.get(i).getCustomerName());
// 个人/公司地址、
gridRow.createCell(3).setCellValue(applyInfoList.get(i).getCustomerAddr());
// 联系人、
gridRow.createCell(4).setCellValue(applyInfoList.get(i).getApplyUserName());
// 申请状态、
gridRow.createCell(5).setCellValue(applyInfoList.get(i).getStatus());
// 申请时间、
gridRow.createCell(6).setCellValue(applyInfoList.get(i).getApplyTm());
// 生效日期、
gridRow.createCell(7).setCellValue(applyInfoList.get(i).getTakeEffectTM());
// 月结账号、
gridRow.createCell(8).setCellValue(applyInfoList.get(i).getCardNo());
// 开发人员工号、
gridRow.createCell(9).setCellValue(applyInfoList.get(i).getDevEmpNum());
// 网络代码、
gridRow.createCell(10).setCellValue(applyInfoList.get(i).getNetCode());
// 快递决策人手机、
gridRow.createCell(11).setCellValue(applyInfoList.get(i).getDecMakerMobile());
// 快递决策人电话、
gridRow.createCell(12).setCellValue(applyInfoList.get(i).getDecMakerTelePhone());
// 主要寄件人手机
gridRow.createCell(13).setCellValue(applyInfoList.get(i).getMostConsignorMobile());
}
book.write(response.getOutputStream());
//清理session中的参数
//这里暂时不清理，因为360浏览器请求了两次当前网关，导致下载失败！（第一次请求时正常，第二次请求时session中的参数已经被清空了，故会报错！）
//		request.getSession().removeAttribute(DOWNLOADPARAMSKEY);

/**
* 列标题样式
*
* @param wb
* @return
*/
private CellStyle getTitleStyle(HSSFWorkbook wb) {
CellStyle style = wb.createCellStyle();
style.setFont(getFont(wb));
style.setAlignment(CellStyle.ALIGN_CENTER);
style.setFillForegroundColor(IndexedColors.GREY_25_PERCENT.getIndex());
style.setFillPattern(CellStyle.SOLID_FOREGROUND);
style.setBorderBottom((short) 1);
style.setBorderLeft((short) 1);
style.setBorderRight((short) 1);
style.setBorderTop((short) 1);
style.setBottomBorderColor(HSSFColor.BLACK.index);
return style;
}

/**
* 字体样式
*
* @param wb
* @return
*/
private HSSFFont getFont(HSSFWorkbook wb) {
HSSFFont font = wb.createFont();
font.setFontName("Arial");
font.setFontHeightInPoints((short) 10);
return font;
}