jfinal中excel表格导出
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
我还是一名正在学习java的小喽啰，希望在今后的日子里可以陪各界IT精英相互交流学习，从今天起我要将我的学习功课，以及课堂笔记与大家分享，或许我的笔记在人们眼里很无趣，不过我毕竟还是一个学习者，相信我在今后的日子里可以给大家带来一些有意义的，有营养的知识，我相信今后的日子我也会成为这个行业里的一员。如果朋友们在今后我做的笔记中有人发现错误，希望可以帮我指出，我将感激不尽。从今天起的记录将伴随着我逐渐走进java。
