今天工作中遇到了excel表格导出的操作，还好有写好的模板，不然我也是焦头烂额，下面记录一下excel表格导出的操作步骤，同时用来给正在学习jfinal的小伙伴一些参考和学习。
首先我们需要把表格查询出并且显示在页面上，下面是页面跳转时经过的Controller：（这里包含条件查询，所以获取信息比较复杂，全部查询只需要将获取到的pageUtils 传到前台即可，不需要添加多余的查询条件，在这里传给前台的变量名我叫他page）
public void index(){
PageUtils pageUtils = getPageParameter();
String where = " where 1=1 ";
//获取当前时间
String nowDate =DateUtils.getDate();
if(pageUtils.getMap().get("orderNo")!=null&&!pageUtils.getMap().get("orderNo").toString().trim().equals("")){
where = where + " and order_no like '%"+pageUtils.getMap().get("orderNo")+ "%' ";
}
if(pageUtils.getMap().get("customerName")!=null&&!pageUtils.getMap().get("customerName").toString().trim().equals("")){
where = where + " and customer_name like '%"+pageUtils.getMap().get("customerName")+"%'";
}
if(pageUtils.getMap().get("shipmentDate")!=null&&!pageUtils.getMap().get("shipmentDate").toString().trim().equals("")){
where = where + " and shipment_date = '"+pageUtils.getMap().get("shipmentDate")+"'";
}
if(pageUtils.getMap().get("isship")!=null&&!pageUtils.getMap().get("isship").toString().trim().equals("")){
if(pageUtils.getMap().get("isship").equals("1")){
where = where + " and Tknum is not null ";
}else if (pageUtils.getMap().get("isship").equals("3")){
where = where + " and ship_type!=5 and arrive_date<'"+nowDate+"' ";
}else{
where = where + " and Tknum is null ";
}
}
if(pageUtils.getMap().get("shipType")!=null&&!pageUtils.getMap().get("shipType").toString().trim().equals("")){
if(pageUtils.getMap().get("shipType").equals("1")){
where = where + " and ship_type =5 ";
}else{
where = where + " and ship_type !=5 ";
}
}
if(pageUtils.getMap().get("ishd")!=null&&!pageUtils.getMap().get("ishd").toString().trim().equals("")){
if(pageUtils.getMap().get("ishd").equals("1")){
where = where + " and img is not null ";
}else{
where = where + " and img is null ";
}
}
where += " order by arrive_date desc ";
pageUtils.initialize(TMSOrderList.dao.paginate(pageUtils.getPageNo(),
pageUtils.getPageSize(), "select * ",
" from TMS_Order_List"+where+ pageUtils.getOrderBySql()));
if(pageUtils.getList().size()==0&&pageUtils.getPageNo()!=1){
pageUtils.setPageNo(1);
pageUtils.initialize(TMSOrderList.dao.paginate(pageUtils.getPageNo(),
pageUtils.getPageSize(), "select * ",
" from TMS_Order_List "+where+pageUtils.getOrderBySql()));
}
setAttr("page", pageUtils);
setAttr("nowDate", nowDate);
render("reportList.jsp");
}
在上面我们获取到了表格信息（实体类和model我就不用写了吧），这里传到前台两个变量，和一个需要返回的页面，这里当前时间你们可能不需要，之后就是在页面接收这个值：（这里因为连表查询所以将page这个值拆开了两次，如果不
需要链表，直接<c:foreach>循环输出就好了,不需要<c:set>）
<input id="btnSubmit" class="btn btn-primary" type="button" value="导出" onclick="exportExcel()"/>
<table id="contentTable" class="table table-striped table-bordered table-condensed">
<thead>
<tr>
<th style="text-align: center;"><input id="checkAll" type="checkbox"/>序号</th>
<th style="text-align: center;">发运客户</th>
<th style="text-align: center;">订单号</th>
<th style="text-align: center;">装货日期</th>
<th style="text-align: center;">预计送达日期</th>
<th style="text-align: center;">运输类型</th>
<th style="text-align: center;">装货地址</th>
<th style="text-align: center;">装货联系人</th>
<th style="text-align: center;">装货联系方式</th>
<th style="text-align: center;">物料描述</th>
<th style="text-align: center;">装货数量</th>
<th style="text-align: center;">装货重量（KG)</th>
<th style="text-align: center;">装货体积（M3)</th>
<th style="text-align: center;">包装规格</th>
<th style="text-align: center;">到达省份</th>
<th style="text-align: center;">到达城市</th>
<th style="text-align: center;">收货客户</th>
<th style="text-align: center;">收货地址</th>
<th style="text-align: center;">收货联系人</th>
<th style="text-align: center;">收货联系方式</th>
<th style="text-align: center;">单价</th>
<th style="text-align: center;">应收运费</th>
<th style="text-align: center;">附加费用</th>
<th style="text-align: center;">合计运费</th>
<th style="text-align: center;">承运商</th>
<th style="text-align: center;">承运商联系方式</th>
<th style="text-align: center;">承运车辆</th>
<th style="text-align: center;">驾驶员</th>
<th style="text-align: center;">驾驶员联系方式</th>
<th style="text-align: center;">应付运费</th>
<th style="text-align: center;">预付运费</th>
<th style="text-align: center;">回付运费</th>
<th style="text-align: center;">附加费用</th>
<th style="text-align: center;">附加费单号</th>
<th style="text-align: center;">合同单号</th>
<th style="text-align: center;">备注</th>
</tr>
</thead>
<tbody id="pBody">
<c:forEach items="${page.list}" var="item" varStatus="index">
<c:set value="${item.client}" var="client"></c:set>
<c:set value="${item.vttkManual}" var="vttkManual"></c:set>
<tr>
<td>
<input id="checkbox${item.id}" name="checkbox" type="checkbox" value="${item.id}" onchange="selected(this.value)"/>
${index.index+1}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.customername}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.orderno}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentdate}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.arrivedate}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shiptype}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentaddress}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentlinkman}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmenttelephone}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.materialdescription}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentqty}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentweight}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.shipmentbulk}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.packagesize}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.province}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.city}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${client.clientName}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${client.clientAddress}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${client.linkman}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${client.telphone}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.unitprice}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.receivablecharge}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.additionalcharge}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${item.totalcharge}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.name1}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;"></td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.signi}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;"></td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;"></td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.receivablefreight}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.advancefreight}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.backfreight}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.additionalfreight}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.additionalnumber}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.contract}</td>
<td style="overflow:hidden;text-overflow:ellipsis;white-space:nowrap;">${vttkManual.bezei}</td>
</tr>
</c:forEach>
</tbody>
</table>
之后就是重点了，excel表格导出，我们可以看到这个页面的最顶端有个导出按钮，导出按钮监听了点击事件onclick="exportExcel()"，之后我们可以在页面的上方写JavaScript写一个方法：
function exportExcel (){
$("#searchForm").attr("action","${ctx}/tms/report/exportExcel").submit();
}
这里写的这个方法是跳转到tms下面report这个controller下的exportExcel方法，这个方法是这样写的：
/**
* 导出excel
*/
public void exportExcel(){
// List<VttkManual> list=VttkManual.dao.find("select * from L2C_VTTK");
List<TMSOrderList> list = TMSOrderList.dao.find("select * from TMS_Order_List");
//Excel生成工具
ExcelExport excelExport = new ExcelExport();
String[] listName = {"发运客户"," 订单编号 "," 装货日期","预计送达日期 ","运输类型 ","装货地址","装货联系人",
"装货联系方式","物料描述 ","装货数量","装货重量 (KG)","装货体积(m3) ","包装规格",
"到达省份","到达城市 ","收货客户","收货地址","收货联系人 ","收货联系方式",
"单价","应收运费","附加费用","合计运费","承运商","承运商联系方式 ","承运车辆",
"驾驶员 ","驾驶员联系方式 ","应付运费","预付运费","回付运费 ","附加费用","附加费单号 ",
"合同单号","备注"};
Map<Integer, Object> excelMap = excelExport.createTable("列表", listName); HSSFCellStyle style = ((HSSFWorkbook) excelMap.get(3)).createCellStyle();
style.setAlignment(HSSFCellStyle.ALIGN_CENTER); HSSFRow row = null;
HSSFCell cells = null;
for (int i = 0; i < list.size(); i++){
row = ((HSSFSheet)excelMap.get(2)).createRow(i + 1);
// VttkManual vm = list.get(i);
// TMSOrderList order=TMSOrderList.dao.findFirst("select * from TMS_Order_List " +
// "where order_no='"+vm.getVbeln()+"'");
TMSOrderList order = list.get(i);
VttkManual vm = VttkManual.dao.findFirst("select * from L2C_VTTK where Vbeln='"+order.getOrderno()+"'"); cells = row.createCell(0);
cells.setCellValue(order.getCustomername());
cells.setCellStyle(style); cells = row.createCell(1);
cells.setCellValue(order.getOrderno());
cells.setCellStyle(style); cells = row.createCell(2);
cells.setCellValue(order.getShipmentdate());
cells.setCellStyle(style); cells = row.createCell(3);
cells.setCellValue(order.getArrivedate());
cells.setCellStyle(style); cells = row.createCell(4);
cells.setCellValue(order.getShipmenttype());
cells.setCellStyle(style); cells = row.createCell(5);
cells.setCellValue(order.getShipmentaddress());
cells.setCellStyle(style); cells = row.createCell(6);
cells.setCellValue(order.getShipmentlinkman());
cells.setCellStyle(style); cells = row.createCell(7);
cells.setCellValue(order.getShipmenttelephone());
cells.setCellStyle(style); cells = row.createCell(8);
cells.setCellValue(order.getMaterialdescription());
cells.setCellStyle(style); cells = row.createCell(9);
cells.setCellValue(order.getShipmentqty()==null?"":order.getShipmentqty().toString());
cells.setCellStyle(style); cells = row.createCell(10);
cells.setCellValue(order.getShipmentweight()==null?"":order.getShipmentweight().toString());
cells.setCellStyle(style); cells = row.createCell(11);
cells.setCellValue(order.getShipmentbulk()==null?"":order.getShipmentbulk().toString());
cells.setCellStyle(style); cells = row.createCell(12);
cells.setCellValue(order.getPackagesize());
cells.setCellStyle(style); cells = row.createCell(13);
cells.setCellValue(order.getProvince());
cells.setCellStyle(style); cells = row.createCell(14);
cells.setCellValue(order.getCity());
cells.setCellStyle(style); if(order.getClient()!=null){
cells = row.createCell(15);
cells.setCellValue(order.getClient().getClientName());
cells.setCellStyle(style); cells = row.createCell(16);
cells.setCellValue(order.getClient().getClientAddress());
cells.setCellStyle(style); cells = row.createCell(17);
cells.setCellValue(order.getClient().getLinkman());
cells.setCellStyle(style); cells = row.createCell(18);
cells.setCellValue(order.getClient().getTelphone());
cells.setCellStyle(style);
} cells = row.createCell(19);
cells.setCellValue(order.getUnitprice()==null?"":order.getUnitprice().toString());
// cells.setCellValue("");
cells.setCellStyle(style); cells = row.createCell(20);
cells.setCellValue(order.getReceivablecharge()==null?"":order.getReceivablecharge().toString());
// cells.setCellValue("");
cells.setCellStyle(style); cells = row.createCell(21);
cells.setCellValue(order.getAdditionalcharge()==null?"":order.getAdditionalcharge().toString());
// cells.setCellValue("");
cells.setCellStyle(style); cells = row.createCell(22);
cells.setCellValue(order.getTotalcharge()==null?"":order.getTotalcharge().toString());
// cells.setCellValue("");
cells.setCellStyle(style); cells = row.createCell(23);
cells.setCellValue(vm.getName1());
cells.setCellStyle(style); cells = row.createCell(24);
cells.setCellValue(vm.getTelephone1());
cells.setCellStyle(style); cells = row.createCell(25);
cells.setCellValue(vm.getSigni());
cells.setCellStyle(style); cells = row.createCell(26);
cells.setCellValue(vm.getDriver());
cells.setCellStyle(style); cells = row.createCell(27);
cells.setCellValue(vm.getTelephone2());
cells.setCellStyle(style); cells = row.createCell(28);
cells.setCellValue(vm.getReceivablefreight());
cells.setCellStyle(style); cells = row.createCell(29);
cells.setCellValue(vm.getAdvancefreight());
cells.setCellStyle(style); cells = row.createCell(30);
cells.setCellValue(vm.getBackfreight());
cells.setCellStyle(style); cells = row.createCell(31);
cells.setCellValue(vm.getAdditionalfreight());
cells.setCellStyle(style); cells = row.createCell(32);
cells.setCellValue(vm.getAdditionalnumber());
cells.setCellStyle(style); cells = row.createCell(33);
cells.setCellValue(vm.getContract());
cells.setCellStyle(style); cells = row.createCell(34);
cells.setCellValue(vm.getBezei());
cells.setCellStyle(style);
} // 第六步，将文件存到指定位置
try{
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmmss");
String code = sdf.format(new Date());
String fileName = "订单全部明细"+code+".xls";
String path = JFinal.me().getConstants().getFileRenderPath();//获取项目配置下载路径
path = path.replace("\\","/");
FileOutputStream fout = new FileOutputStream(path+"/"+fileName);
((HSSFWorkbook)excelMap.get(3)).write(fout);
fout.close();
addMessageSuccess("导出成功"); renderFile(fileName); }catch (Exception e){
e.printStackTrace();
addMessageError("导出失败");
redirect("/tms/report");
}
}
之后大概就都懂了把，最上面String[] listName 是每列的字段名，下面
cells = row.createCell(0);代表的是当前列数；
cells.setCellValue(order.getCustomername());代表的是当前列插入的内容；
cells.setCellStyle(style);代表当前单元格内的样式
下面配置好路径就可以道出了，导出成功之后页面会提示你保存的路径，保存之后就可以查看了，是不是很简单呢