【项目实战】Java POI之Excel导出经典案例三
该案例的实现和【项目实战】Java POI之Excel导出经典案例一类似，点击【导出Excel】按钮进行操作。
1、创建Excel模板文档，如下：
2、在JSP中添加按钮代码：
导出到Excel3、在JS中实现点击事件：
/* 导出到Excel */
function toGuestListExcel(){
var curpagenum = $('#contentGroupOrderTable').getGridParam('page');
$("#page").val(curpagenum);
$("#toGuestListExcelId").attr("href","toSaleGuestListExcel.do?startTime="+$("#startTime").val()
+"&endTime="+$("#endTime").val()
+"&receiveMode="+$("#receiveMode").val()
+"&groupCode="+$("#groupCode").val()
+"&orgIds="+$("#supplierName").val()
+"&orgIds="+$("#orgIds").val()
+"&orgNames="+$("#orgNames").val()
+"&operType="+$("#operType").val()
+"&saleOperatorIds="+$("#saleOperatorIds").val()
+"&saleOperatorName="+$("#saleOperatorName").val()
+"&orderMode="+$("#dicIds").val()
+"&remark="+$("#remark").val()
+"&page="+$("#page").val()
+"&pageSize="+$("#pageSize").val()
+"&userRightType="+$("#userRightType").val()
+"&guestName="+$("#guestName").val()
+"&gender="+$("#gender").val()
+"&ageFirst="+$("#ageFirst").val()
+"&ageSecond="+$("#ageSecond").val()
+"&nativePlace="+$("#nativePlace").val());
}4、Java后台Controller中请求方法的实现如下:
@RequestMapping(value = "/toSaleGuestListExcel.do")
public void toSaleGuestListExcel(HttpServletRequest request, HttpServletResponse response,
String startTime,String endTime,String receiveMode,String groupCode,String supplierName,
String orgIds,String orgNames,String operType,String saleOperatorIds,String saleOperatorName,
String orderMode,String remark,Integer page,Integer pageSize,Integer userRightType,
String guestName,Integer gender,Integer ageFirst,Integer ageSecond,String nativePlace) {
GroupOrder vo = new GroupOrder();
vo.setPage(page);
vo.setPageSize(pageSize);
vo.setStartTime(startTime);
vo.setEndTime(endTime);
vo.setRemark(remark);
vo.setGuestName(guestName);
vo.setOrderNo(orderMode);
vo.setGroupCode(groupCode);
vo.setSaleOperatorIds(saleOperatorIds);
vo.setOrgIds(orgIds);
vo.setOperType(Integer.valueOf(operType));
vo.setReceiveMode(receiveMode);
vo.setOrgNames(orgNames);
vo.setSaleOperatorName(saleOperatorName);
vo.setSupplierName(supplierName);
vo.setGender(gender);
vo.setAgeFirst(ageFirst);
vo.setAgeSecond(ageSecond);
vo.setNativePlace(nativePlace);
PageBean pageBean = new PageBean();
if (page == null) {
pageBean.setPage(1);
} else {
pageBean.setPage(page);
}
if (pageSize == null) {
pageBean.setPageSize(10000);
} else {
pageBean.setPageSize(10000);
}
pageBean.setParameter(vo);
pageBean.setPage(page);
pageBean = groupOrderService.selectGroupOrderGuestListPage(pageBean, WebUtils.getCurBizId(request),
WebUtils.getDataUserIdSet(request),userRightType);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
String path = "";
try {
String url = request.getSession().getServletContext().getRealPath("/template/excel/groupGuestList.xlsx");
FileInputStream input = new FileInputStream(new File(url)); // 读取的文件路径
XSSFWorkbook wb = new XSSFWorkbook(new BufferedInputStream(input));
CellStyle cellStyle = wb.createCellStyle();
cellStyle.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
cellStyle.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
cellStyle.setBorderTop(CellStyle.BORDER_THIN);// 上边框
cellStyle.setBorderRight(CellStyle.BORDER_THIN);// 右边框
cellStyle.setAlignment(CellStyle.ALIGN_CENTER); // 居中
cellStyle.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);// 垂直
cellStyle.setWrapText(true);
CellStyle styleLeft = wb.createCellStyle();
styleLeft.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
styleLeft.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
styleLeft.setBorderTop(CellStyle.BORDER_THIN);// 上边框
styleLeft.setBorderRight(CellStyle.BORDER_THIN);// 右边框
styleLeft.setAlignment(CellStyle.ALIGN_LEFT); // 居左
styleLeft.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);// 垂直
styleLeft.setWrapText(true);
CellStyle styleRight = wb.createCellStyle();
styleRight.setBorderBottom(CellStyle.BORDER_THIN); // 下边框
styleRight.setBorderLeft(CellStyle.BORDER_THIN);// 左边框
styleRight.setBorderTop(CellStyle.BORDER_THIN);// 上边框
styleRight.setBorderRight(CellStyle.BORDER_THIN);// 右边框
styleRight.setAlignment(CellStyle.ALIGN_RIGHT); // 居右
styleRight.setVerticalAlignment(XSSFCellStyle.VERTICAL_CENTER);// 垂直
styleRight.setWrapText(true);
Sheet sheet = wb.getSheetAt(0); // 获取到第一个sheet
Row row = null;
Cell cc = null;
// 遍历集合数据，产生数据行
//Iterator it = pageBean.getResult().iterator();
Map map = null;
int index = 0;
DecimalFormat df = new DecimalFormat("0.##");
if (pageBean.getResult() != null && pageBean.getResult().size() > 0) {
for (int i = 0; i < pageBean.getResult().size(); i++) {
map = (HashMap) pageBean.getResult().get(i);
//GroupOrder go = it.next();
row = sheet.createRow(index + 2);
cc = row.createCell(0);
cc.setCellValue(index + 1);
cc.setCellStyle(cellStyle);
cc = row.createCell(1);
cc.setCellValue((String)map.get("group_code"));//号
cc.setCellStyle(styleLeft);
cc = row.createCell(2);
cc.setCellValue(sdf.format(map.get("departure_date")));//日期
cc.setCellStyle(cellStyle);
cc = row.createCell(3);
cc.setCellValue((String)map.get("supplier_name"));//来源
cc.setCellStyle(styleLeft);
cc = row.createCell(4);
cc.setCellValue((String)map.get("receive_mode"));//客人信息
cc.setCellStyle(styleLeft);
cc = row.createCell(5);
cc.setCellValue((String)map.get("name"));//姓名
cc.setCellStyle(styleLeft);
cc = row.createCell(6);
cc.setCellValue((Integer)map.get("gender")==0?"女":"男");//性别
cc.setCellStyle(cellStyle);
cc = row.createCell(7);
cc.setCellValue(String.valueOf(map.get("age")));//年龄
cc.setCellStyle(cellStyle);
cc = row.createCell(8);
cc.setCellValue((String)(map.get("certificate_num")));//证件号
cc.setCellStyle(cellStyle);
cc = row.createCell(9);
cc.setCellValue((String)map.get("mobile"));//电话
cc.setCellStyle(cellStyle);
cc = row.createCell(10);
cc.setCellValue((String)map.get("native_place"));//籍贯
cc.setCellStyle(styleLeft);
cc = row.createCell(11);
cc.setCellValue((String)map.get("remark"));//产品备注
cc.setCellStyle(styleLeft);
if((Integer)map.get("order_mode")==1374){
cc = row.createCell(12);
cc.setCellValue("长线");//业务
cc.setCellStyle(cellStyle);
} else if((Integer)map.get("order_mode")==1475){
cc = row.createCell(12);
cc.setCellValue("短线");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1476){
cc = row.createCell(12);
cc.setCellValue("签证");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1486){
cc = row.createCell(12);
cc.setCellValue("门票");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1487){
cc = row.createCell(12);
cc.setCellValue("酒店");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1488){
cc = row.createCell(12);
cc.setCellValue("专线");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1489){
cc = row.createCell(12);
cc.setCellValue("包车");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1490){
cc = row.createCell(12);
cc.setCellValue("组团");//业务
cc.setCellStyle(cellStyle);
}else if((Integer)map.get("order_mode")==1493){
cc = row.createCell(12);
cc.setCellValue("推广");//业务
cc.setCellStyle(cellStyle);
}else {
cc = row.createCell(12);
cc.setCellValue("XXX");//业务
cc.setCellStyle(cellStyle);
}
cc = row.createCell(13);
cc.setCellValue((String)map.get("sale_operator_name"));//销售
cc.setCellStyle(cellStyle);
cc = row.createCell(14);
cc.setCellValue((String)map.get("operator_name"));//计调
cc.setCellStyle(cellStyle);
Integer sumAC = (Integer) map.get("num_adult")+(Integer) map.get("num_child");
BigDecimal total = (BigDecimal) map.get("total");
cc = row.createCell(15);
cc.setCellValue(df.format(total.divide(new BigDecimal(sumAC),2, RoundingMode.HALF_UP)));//金额
cc.setCellStyle(cellStyle);
index++;
}
}
CellRangeAddress region = new CellRangeAddress(pageBean.getResult().size() + 5,
pageBean.getResult().size() + 5, 0, 10);
sheet.addMergedRegion(region);
row = sheet.createRow(pageBean.getResult().size() + 5);
cc = row.createCell(0);
cc.setCellValue("打印人：" + WebUtils.getCurUser(request).getName()
+ " 打印时间："
+ DateUtils.format(new Date(), "yyyy-MM-dd HH:mm:ss"));
path = request.getSession().getServletContext().getRealPath("/") + "/download/" + System.currentTimeMillis()
+ ".xlsx";
FileOutputStream out = new FileOutputStream(path);
wb.write(out);
out.close();
wb.close();
} catch (Exception e) {
e.printStackTrace();
}
String fileName = "";
try {
fileName = new String("名单导出.xlsx".getBytes("UTF-8"), "iso-8859-1");
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
download(path, fileName, request, response);
} downLaod()为下载的方法，其代码如下：
private void download(String path, String fileName, HttpServletRequest request, HttpServletResponse response) {
try {
// path是指欲下载的文件的路径。
File file = new File(path);
// 以流的形式下载文件。
InputStream fis = new BufferedInputStream(new FileInputStream(path));
byte[] buffer = new byte[fis.available()];
fis.read(buffer);
fis.close();
// 清空response
response.reset();
/*
* //解决IE浏览器下下载文件名乱码问题 if
* (request.getHeader("USER-AGENT").indexOf("msie") > -1){ fileName
* = new URLEncoder().encode(fileName) ; }
*/
// 设置response的Header
response.addHeader("Content-Disposition", "attachment;filename=" + fileName);
response.addHeader("Content-Length", "" + file.length());
OutputStream toClient = new BufferedOutputStream(response.getOutputStream());
response.setContentType("application/vnd.ms-excel;charset=gb2312");
toClient.write(buffer);
toClient.flush();
toClient.close();
file.delete();
} catch (IOException ex) {
ex.printStackTrace();
}
}到此大功告成！！！
5、最终效果如下：
