java批量导出excel格式数据(含每条数据的附件)

class ExcelExport{public String exportExcel() throws Exception{//1：初始化数据//excel的标题数据（只有一条）ArrayList<String> fieldName = elecUserService.findFieldNameWithExcel();//excel的内容数据（多条）ArrayList<ArrayList<String>> fieldData = elecUserService.findFieldDataWithExcel(elecUser);//2：调用封装的POI报表的导出类ExcelFileGenerator.java，完成excel报表的导出ExcelFileGenerator excelFileGenerator = new ExcelFileGenerator(fieldName, fieldData);/**导出报表的文件名*/String filename = "用户报表（"+DateUtils.dateToStringWithExcel(new Date())+"）.xls";//处理乱码filename = new String(filename.getBytes("gbk"),"iso-8859-1");/**response中进行设置，总结下载，导出，需要io流和头*/response.setContentType("application/vnd.ms-excel");response.setHeader("Content-disposition", "attachment;filename="+filename);response.setBufferSize(1024);//获取输出流OutputStream os = response.getOutputStream();excelFileGenerator.expordExcel(os);//使用输出流，导出return null;}}class ExcelFileGenerator {private final int SPLIT_COUNT = 15; //Excel每个工作簿的行数private ArrayList<String> fieldName = null; //excel标题数据集private ArrayList<ArrayList<String>> fieldData = null; //excel数据内容private HSSFWorkbook workBook = null;/*** 构造器* @param fieldName 结果集的字段名* @param data*/public ExcelFileGenerator(ArrayList<String> fieldName, ArrayList<ArrayList<String>>fieldData) {this.fieldName = fieldName;this.fieldData = fieldData;}/*** 创建HSSFWorkbook对象* @return HSSFWorkbook*/public HSSFWorkbook createWorkbook() {workBook = new HSSFWorkbook();//创建一个工作薄对象int rows = fieldData.size();//总的记录数int sheetNum = 0; //指定sheet的页数if (rows % SPLIT_COUNT == 0) {sheetNum = rows / SPLIT_COUNT;} else {sheetNum = rows / SPLIT_COUNT + 1;}for (int i = 1; i <= sheetNum; i++) {//循环2个sheet的值HSSFSheet sheet = workBook.createSheet("Page " + i);//使用workbook对象创建sheet对象HSSFRow headRow = sheet.createRow((short) 0); //创建行，0表示第一行（本例是excel的标题）for (int j = 0; j < fieldName.size(); j++) {//循环excel的标题HSSFCell cell = headRow.createCell( j);//使用行对象创建列对象，0表示第1列/**************对标题添加样式begin********************///设置列的宽度/sheet.setColumnWidth(j, 6000);HSSFCellStyle cellStyle = workBook.createCellStyle();//创建列的样式对象HSSFFont font = workBook.createFont();//创建字体对象//字体加粗font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);//字体颜色变红font.setColor(HSSFColor.RED.index);//如果font中存在设置后的字体，并放置到cellStyle对象中，此时该单元格中就具有了样式字体cellStyle.setFont(font);/**************对标题添加样式end********************///添加样式cell.setCellType(HSSFCell.CELL_TYPE_STRING);if(fieldName.get(j) != null){//将创建好的样式放置到对应的单元格中cell.setCellStyle(cellStyle);cell.setCellValue((String) fieldName.get(j));//为标题中的单元格设置值}else{cell.setCellValue("-");}}//分页处理excel的数据，遍历所有的结果for (int k = 0; k < (rows < SPLIT_COUNT ? rows : SPLIT_COUNT); k++) {if (((i - 1) * SPLIT_COUNT + k) >= rows)//如果数据超出总的记录数的时候，就退出循环break;HSSFRow row = sheet.createRow((short) (k + 1));//创建1行//分页处理，获取每页的结果集，并将数据内容放入excel单元格ArrayList<String> rowList = (ArrayList<String>) fieldData.get((i - 1) * SPLIT_COUNT + k);for (int n = 0; n < rowList.size(); n++) {//遍历某一行的结果HSSFCell cell = row.createCell( n);//使用行创建列对象if(rowList.get(n) != null){cell.setCellValue((String) rowList.get(n).toString());}else{cell.setCellValue("");}}}}return workBook;}public void expordExcel(OutputStream os) throws Exception {workBook = createWorkbook();workBook.write(os);//将excel中的数据写到输出流中，用于文件的输出os.close();}}。

import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.util.ArrayList;import java.util.List;import jxl.Workbook;import jxl.format.UnderlineStyle;import bel;import jxl.write.WritableFont;import jxl.write.WritableSheet;import jxl.write.WritableWorkbook;import jxl.write.WriteException;import jxl.write.biff.RowsExceededException;import ermodel.HSSFCell;import ermodel.HSSFCellStyle;import ermodel.HSSFRow;import ermodel.HSSFSheet;import ermodel.HSSFWorkbook;import org.apache.poi.poifs.filesystem.POIFSFileSystem;public class ExcelOpt {/*** 生成一个Excel文件jxl* @param fileName 要生成的Excel文件名* @jxl.jar 版本：2.6*/public static void writeExcel(String fileName){WritableWorkbook wwb = null;try {//首先要使用Workbook类的工厂方法创建一个可写入的工作薄(Workbook)对象wwb = Workbook.createWorkbook(new File(fileName));} catch (IOException e) {e.printStackTrace();}if(wwb!=null){//创建一个可写入的工作表//Workbook的createSheet方法有两个参数，第一个是工作表的名称，第二个是工作表在工作薄中的位置WritableSheet ws = wwb.createSheet("工作表名称", 0);//下面开始添加单元格for(int i=0;i<10;i++){for(int j=0;j<5;j++){//这里需要注意的是，在Excel中，第一个参数表示列，第二个表示行Label labelC = new Label(j, i, "这是第"+(i+1)+"行，第"+(j+1)+"列");try {//将生成的单元格添加到工作表中ws.addCell(labelC);} catch (RowsExceededException e) {e.printStackTrace();} catch (WriteException e) {e.printStackTrace();}}}try {//从内存中写入文件中wwb.write();//关闭资源，释放内存wwb.close();} catch (IOException e) {e.printStackTrace();} catch (WriteException e) {e.printStackTrace();}}}/*** 生成一个Excel文件POI* @param inputFile 输入模板文件路径* @param outputFile 输入文件存放于服务器路径* @param dataList 待导出数据* @throws Exception* @roseuid:*/public static void exportExcelFile(String inputFile,String outputFile,List dataList) throws Exception{//用模板文件构造poiPOIFSFileSystem fs = new POIFSFileSystem(new FileInputStream(inputFile));//创建模板工作表HSSFWorkbook templatewb = new HSSFWorkbook(fs);//直接取模板第一个sheet对象HSSFSheet templateSheet = templatewb.getSheetAt(1);//得到模板的第一个sheet的第一行对象为了得到模板样式HSSFRow templateRow = templateSheet.getRow(0);//HSSFSheet timplateSheet = templatewb.getSheetAt(1);//取得Excel文件的总列数int columns = templateSheet.getRow((short) 0).getPhysicalNumberOfCells();// Debug.println("columns is : " + columns); //========================= //创建样式数组HSSFCellStyle styleArray[] = new HSSFCellStyle[columns];//一次性创建所有列的样式放在数组里for (int s = 0; s < columns; s++) {//得到数组实例styleArray[s] = templatewb.createCellStyle();}&nbsp循环对每一个单元格进行赋值//定位行for (int rowId = 1; rowId < dataList.size(); rowId++) {//依次取第rowId行数据每一个数据是valueListList valueList = (List) dataList.get(rowId - 1);//定位列for (int columnId = 0; columnId < columns; columnId++) {//依次取出对应与colunmId列的值//每一个单元格的值String dataValue = (String) valueList.get(columnId);//取出colunmId列的的style//模板每一列的样式HSSFCellStyle style = styleArray[columnId];//取模板第colunmId列的单元格对象//模板单元格对象HSSFCell templateCell = templateRow.getCell((short) columnId);//创建一个新的rowId行行对象//新建的行对象HSSFRow hssfRow = templateSheet.createRow(rowId);//创建新的rowId行columnId列单元格对象//新建的单元格对象HSSFCell cell = hssfRow.createCell((short) columnId);//如果对应的模板单元格样式为非锁定if (templateCell.getCellStyle().getLocked() == false) {//设置此列style为非锁定style.setLocked(false);//设置到新的单元格上cell.setCellStyle(style);}//否则样式为锁定else {//设置此列style为锁定style.setLocked(true);//设置到新单元格上cell.setCellStyle(style);}//设置编码cell.setEncoding(HSSFCell.ENCODING_UTF_16);//Debug.println("dataValue : " + dataV alue);//设置值统一为Stringcell.setCellValue(dataV alue);}}//设置输入流FileOutputStream fOut = new FileOutputStream(outputFile);//将模板的内容写到输出文件上templatewb.write(fOut);fOut.flush();//操作结束，关闭文件fOut.close();}/*** 导出数据为XLS格式* @param fos 生成Excel文件Path* @param bo 要导入的数据*/public static void writeExcelBo(String fos, java.util.List ve) {jxl.write.WritableWorkbook wwb;try{wwb= Workbook.createWorkbook(new File(fos));jxl.write.WritableSheet ws= wwb.createSheet("上市新书", 10);ws.addCell(new bel(0, 1, "书名"));ws.addCell(new bel(1, 1, "作者"));ws.addCell(new bel(2, 1, "定价"));ws.addCell(new bel(3, 1, "出版社"));int bookSize=ve.size();BookVO book = new BookVO();for (int i= 0; i < bookSize; i++){book= (BookVO)ve.get(i);ws.addCell(new bel(0, i + 2, "" + book.getBookName()));ws.addCell(new bel(1, i + 2, book.getBookAuthor()));ws.addCell(new bel(2, i + 2, "" + book.getBookPrice()));ws.addCell(new bel(3, i + 2, book.getBookConcern()));}// jxl.write.WritableFont wfc=//newjxl.write.WritableFont(WritableFont.ARIAL,255,WritableFont.BOLD,false,UnderlineStyle.NO_U NDERLINE,jxl.format.Colour.BLACK);//jxl.write.WritableCellFormat wcfFC= new jxl.write.WritableCellFormat(wfc);ws.addCell(new bel(0, 0, "2007年07月即将上市新书！"));wwb.write();// 关闭Excel工作薄对象wwb.close();} catch (IOException e){} catch (RowsExceededException e){} catch (WriteException e){}}public static void main(String[] args) {writeExcel("c:\\Test测试Excel.xls");System.out.println("OK");ArrayList list = new ArrayList();for (int i = 0; i < 10; i++) {BookVO book = new BookVO();book.setBookName("WebWork in action+"+i);book.setBookAuthor("唐勇+"+i);book.setBookPrice("39元+"+i);book.setBookConcern("飞思科技+"+i);list.add(book);}writeExcelBo("c:\\上市新书.xls",list);System.err.println("Book OK!!!");}}=================摘要=====================java如何操作Excel(数据导入导出)(转)jxl.jar，可以到下载。

java实现excel导出功能实现功能：java导出excel表1、jsp代码1 <form id="zhanwForm" action="<%=path%>/conferences.do?" target="_self" method="get" >2 <input type="hidden" name="method" value="outData"/>3 <input type="hidden" name="compassId" value='1'/>4 <input type="hidden" name="fromWhere" value="AAAA"/>56 </from>View Code2、js代码1 $(".daochu1").click(function(){2 var bank = new Array();3 $.each($(".guangGaoLeiXing").find("input:checked"), function () {4 bank.push($(this).val());5 });6if(bank == false){7 alert("请选择要统计类型");8 }else{9 $("#zhanwForm").submit();10 }11 })1213 $(".lyBtn").click(function(){14 $(".mask").show();15 $(".tishiDiv").show();16 $.ajax({17 url : '<%=path %>/conferences.do?method=getUserLy&fromWhere=csco',18 type : 'GET',19 dataType : 'json',20 success : function(data) {21 $(".mask").hide();22 $(".tishiDiv").hide();23 window.open(data.url);24 }25 })26 });View Code3、action处理代码1//导出数据2//SELECT SUBSTRING(create_time,1,10) s,COUNT(*) FROM data_read WHERE data_id IN (SELECT data_id FROM DATA WHERE model_id=2 OR model_id=27) GROUP BY s 3 @RequestMapping(params = "method=outData",method = RequestMethod.GET)4public void outCompassTongJiData(Integer compassId,String fromWhere,ModelMap model,HttpServletRequest request,HttpServletResponse response)5 {6 String urlPath = request.getScheme()+"://"+request.getServerName()+request.getContextPath();7 XSSFWorkbook rwb1 = new XSSFWorkbook();89while(true)10 {11if(rwb1.getNumberOfSheets() != 0){12 rwb1.removeSheetAt(0);13 }14else{15break;16 }17 }18try {19int bankLong = 0;20int bank1Long = 0;21 String [] bank = request.getParameterValues("bank");//⼴告类型选择22 String [] bank1 = request.getParameterValues("bank1");//⾝份选择23 String startTime = request.getParameter("startTime");24 String endTime = request.getParameter("endTime");25 String[] shenfenList = {"医⽣","医学⽣","其他"};26 String[] zhichengArray = {"主任医师","副主任医师","主治医师","住院医师（有执业证）","住院医师（未考执业证）","助理医师（有执业证）","助理医师（未考执业证）","其他"};27 String typeString1 ="";28 String typeString2 ="";29if(bank!=null){30 bankLong = bank.length;31for(int i=0;i<bankLong;i++){32if(bank[i].equals("1")||bank[i].equals("3")||bank[i].equals("8")){33 typeString1 = typeString1+bank[i]+",";34 }else {35 typeString2 = typeString2+bank[i]+",";36 }37 }38 }39if(typeString1 != null && typeString1.length() != 0){40 typeString1 = typeString1.substring(0, typeString1.length()-1);41 }42if(typeString2 != null && typeString2.length() != 0){43 typeString2 = typeString2.substring(0, typeString2.length()-1);44 }45if(bank1!=null){46 bank1Long = bank1.length;47 }4849 XSSFSheet ws1 = rwb1.createSheet("统计数据");50 ws1.addMergedRegion(new CellRangeAddress(0, 1, 0, 0));51 ws1.addMergedRegion(new CellRangeAddress(0, 1, 1, 1));52 ws1.addMergedRegion(new CellRangeAddress(0, 1, 2, 2));53 ws1.addMergedRegion(new CellRangeAddress(0, 1, 3, 3));54 ws1.addMergedRegion(new CellRangeAddress(0, 0, 4, 5));55int count = 0;//⾏56int rolNUm = 0;//列5758 XSSFRow row1 = ws1.createRow(0);5960 row1.createCell(rolNUm).setCellValue("类型");61 rolNUm++;62 row1.createCell(rolNUm).setCellValue("ID");63 rolNUm++;64 row1.createCell(rolNUm).setCellValue("标题");65 rolNUm++;66 row1.createCell(rolNUm).setCellValue("地址");67 rolNUm++;68 row1.createCell(rolNUm).setCellValue("点击量");//1/26970 count++;71 XSSFRow row2 = ws1.createRow(count);72 row2.createCell(rolNUm).setCellValue("总点击次数");73 rolNUm++;74 row2.createCell(rolNUm).setCellValue("总点击⽤户数");75//六种统计类型：⾸页⼴告、上⽅⼴告、session相关性⼴告、展商活动、动态（现场秀）、消息站7677//得到需要统计的⼴告类型的集合78 List<CompassTongji> compassTongJis = conferencesService.getCompassTongJiByType(fromWhere,typeString1,typeString2,startTime,endTime);// i,group by dataId 查询不重复的data79//如果不为空，遍历80if(compassTongJis != null && compassTongJis.size() != 0){81for(CompassTongji compassTongJi :compassTongJis){82int dataId = compassTongJi.getDataId();//⼴告ID83int type = compassTongJi.getType();84 String title = compassTongJi.getDataTitle();//⼴告标题85 String url1 = compassTongJi.getDataUrl()==null?"":compassTongJi.getDataUrl();//⼴告地址86 String url = "";87if(type - 8 == 0){88if(url1.indexOf("method=")!= -1){89 String[] urlStrings = url1.split("&");90 url = urlStrings[0]+"&"+urlStrings[1];91 }else{92int index = url1.indexOf("?");93if(index != -1){94 url = url1.substring(0, index);95 }else{96 url = url1;97 }98 }99 }else{100int index = url1.indexOf("?");101if(index != -1){102 url = url1.substring(0, index);103 }else{104 url = url1;105 }106107 }108109//总点击量110int totalClickNumber = conferencesService.getTotalClickNumber(dataId,url,startTime,endTime,type,fromWhere);111//总点击⼈数112int totalClickPeopleNumber = conferencesService.getTotalClickPeopleNumber(dataId,url,startTime,endTime,type,fromWhere);113 count++;114 XSSFRow row3 = ws1.createRow(count);115 rolNUm=0;116 row3.createCell(rolNUm).setCellValue(type == 1?"⾸页⼴告":type ==2?"上⽅⼴告":type==3?"session相关性⼴告":type==4?"展商活动":type==5?"动态（现场秀）":type==6?"消息站":type == 7?"弹窗":type == 8?"推送":"⾸页117 rolNUm++;118 row3.createCell(rolNUm).setCellValue(dataId);119 rolNUm++;120 row3.createCell(rolNUm).setCellValue(title);121 rolNUm++;122 row3.createCell(rolNUm).setCellValue(url1);123 rolNUm++;124 row3.createCell(rolNUm).setCellValue(totalClickNumber);125 rolNUm++;126 row3.createCell(rolNUm).setCellValue(totalClickPeopleNumber);127for(int j=0;j<bank1Long;j++){128int tongJiZiDuan = Integer.valueOf(bank1[j]);129if (tongJiZiDuan == 1) {130//领域统计 userLy131//先查询所有领域列表132//遍历领域列表(compassfield) 根据领域id 查询⽤户表（field_id 领域ID field 领域）得到领域统计信息133 List<CompassField> compassList = conferencesService.getCompassList();134int compassListLength = compassList.size();135136 ws1.addMergedRegion(new CellRangeAddress(0, 0, rolNUm+1, compassListLength+rolNUm));137 row1.createCell(rolNUm+1).setCellValue("领域");138if(compassList != null && compassList.size()!=0){139for (CompassField compassField : compassList) {140int compassFieldId = compassField.getCompassFieldId();141int countLy = conferencesService.getUserLyInfo(dataId,url,compassFieldId,startTime,endTime,type,fromWhere);142 rolNUm++;143 row2.createCell(rolNUm).setCellValue(compassField.getFieldName());144 row3.createCell(rolNUm).setCellValue(countLy);145 }146 }147 }148if(tongJiZiDuan == 2){//科室统计 userKs149 List<CompassKs> compassKsListList = conferencesService.getCompassKsList();150int userKsListLength = compassKsListList.size();151 ws1.addMergedRegion(new CellRangeAddress(0, 0, rolNUm+1, userKsListLength+rolNUm));152 row1.createCell(rolNUm+1).setCellValue("科室");153if(compassKsListList != null && compassKsListList.size()!=0){154for (CompassKs compassKs : compassKsListList) {155int compassKsId = compassKs.getCompassKsId();156int countKs = conferencesService.getUserKsInfo(dataId,url,compassKsId,startTime,endTime,type,fromWhere);157 rolNUm++;158 row2.createCell(rolNUm).setCellValue(compassKs.getKsName());159 row3.createCell(rolNUm).setCellValue(countKs);160 }161 }162 }163164if(tongJiZiDuan == 3){//职称统计 zhicheng165int userZhichengListLeng = zhichengArray.length;166 ws1.addMergedRegion(new CellRangeAddress(0, 0, rolNUm+1, userZhichengListLeng+rolNUm));167 row1.createCell(rolNUm+1).setCellValue("职称");168for (int k=0;k<userZhichengListLeng;k++) {169 String zhicheng = zhichengArray[k];170int userZhichengList = conferencesService.getUserZhichengInfo(dataId,url,startTime,endTime,zhicheng,type,fromWhere);171 rolNUm++;172 row2.createCell(rolNUm).setCellValue(zhicheng);173 row3.createCell(rolNUm).setCellValue(userZhichengList);174 }175176 }177178if(tongJiZiDuan == 4){//⾝份统计179int userShenfenListLength = shenfenList.length;180 ws1.addMergedRegion(new CellRangeAddress(0, 0, rolNUm+1, userShenfenListLength + rolNUm));181 row1.createCell(rolNUm+1).setCellValue("⾝份");182183for (int k = 0;k<userShenfenListLength;k++) {184 String shenfen = shenfenList[k];185int countShenFen = conferencesService.getClickUserShenFenInfo( dataId,url,startTime,endTime,shenfen,type,fromWhere);186 rolNUm++;187 row2.createCell(rolNUm).setCellValue(shenfen);188 row3.createCell(rolNUm).setCellValue(countShenFen);189 }190 }191if(tongJiZiDuan == 5){//省市（市）统计192 List<Hospital> provinceList = conferencesService.getProvinceList();193194if(provinceList != null && provinceList.size()!=0){195for (Hospital hospital : provinceList) {196 Integer provinceId = hospital.getHospitalId();197 String provinceName = hospital.getProvince();198199if(provinceName!=null && provinceName.length() != 0){200 List<Hospital> cityList = conferencesService.getCityInfoByProvinceId(provinceId);201202if(cityList != null && cityList.size() != 0){203int cityListLength = cityList.size();204 ws1.addMergedRegion(new CellRangeAddress(0, 0, rolNUm+1, rolNUm+cityListLength));205 row1.createCell(rolNUm+1).setCellValue(provinceName);206for (Hospital hospital2 : cityList) {207//得到市的名称208 String cityName = hospital2.getCity();209 Integer cityId = hospital2.getHospitalId();210if(cityName!=null && cityName.length() != 0){211int cityNum = conferencesService.getCityInfoByProvinceNameAndCityName(dataId,url,startTime, endTime, cityId,type,fromWhere);212 rolNUm++;213 row2.createCell(rolNUm).setCellValue(cityName);214 row3.createCell(rolNUm).setCellValue(cityNum);215 }216 }217 }218 }//省不为空219 }220 }221 }//省市统计结束222 }223 }224 }//最外if结束225226227228 String filePath = request.getSession().getServletContext().getRealPath("files/execl");229 File conFile = new File(filePath); //⽬录结构230if(!conFile.exists())231 {232 conFile.mkdir();233 }234 String fileName = "compassTongJi.xlsx";235 File file = new File(filePath+"/"+fileName);236if(file.exists())237 {238 file.delete();239 }240else{241 file.createNewFile();242 }243 FileOutputStream fout = new FileOutputStream(file);244 rwb1.write(fout);245 fout.close();246//JSONObject jsonObject = new JSONObject();247//jsonObject.accumulate("url",request.getContextPath()+"/files/execl/"+fileName);248//writeToJson(response, jsonObject.toString());249 String urlString ="<script type='text/javascript'>window.parent.open('"+urlPath+"/files/execl/"+fileName+"')</script>";250 PrintWriter out = response.getWriter();251 response.setCharacterEncoding("utf-8");252 response.setContentType("text/html;charset=UTF-8");253 out.write(urlString);254 out.flush();255 out.close();256 } catch (Exception e) {257// TODO: handle exception258 e.printStackTrace();259 }260 }View Code梦想是⼀个说出来就矫情的东西，它是⽣长在暗地⾥的⼀颗种⼦，只有破⼟⽽出，拔节⽽长，终有⼀⽇开出花来，才能正⼤光明的让所有⼈都知道。

Java如何实现导出Excel功能，亲测有⽤！刚写了个导⼊Excel表格，现在来写个导出，其实形式都差不多，废话不多说，贴代码<div><button type="button" class="btn-btn" @click="exportData()">导出</button></div>这⾥根据个⼈需求，我这⾥写时间设置，根据条件去请求导出，这⾥因⼈⽽异exportData(){//判断⽤户有⽆填写操作类型if (this.type != "") {//默认全部操作类型，不传参this.param["code"] = this.code;}//判断⽤户有⽆填写开始⽇期if (this.startDate != '') {this.param['statrDate'] = new Date(this.startDate);}//判断⽤户有⽆填写结束⽇期if (this.endDate != '') {this.param['endDate'] = new Date(this.endDate);}this.param[this.optionSelected] = this.param.searchText;var url = "${ctx}/operatelog/exportOperateLog";window.open(url);}window.open(url);⼀开始请求我是使⽤ajax的，但是⼀直不弹出⽂件存放位置的选择，我怀疑是异步的问题，或者没设置好，后来使⽤这个语句，就会弹出⽂件存放位置的选择出来，没办法，实⼒有限，知道的可以留⾔告诉我下，谢谢！java中Controller层，来接受请求，数据库查询到的数据进⾏封装，然后使⽤ExcelUtils进⾏输出。

java实现导出Excel（跨⾏，跨列）先来个最终结果样式：第⼀步：传参，后期可根据⾃⼰需要进⾏调整。

我这⾥需要的是quarter 代表季度dptid 部门编号根据接受过来的参数进⾏⽂档命名。

UserInfo userInfo=(UserInfo)request.getSession().getAttribute("userInfo");String userid=userInfo.getUserID();String quarter = request.getParameter("quarter");String dptid = request.getParameter("dptid");/***********************EXCEL导出部分**************************/String str3 = FileInfoTools.getSystemFilePath()+ "/documentTemp/";File file = new File(str3);if (!file.exists() && !file.isDirectory()) {file.mkdir();}String names = new SimpleDateFormat("yyyyMMddhhmmssSSS").format(new Date());String ourl = str3 + names + "_"+userid+".xls";FileOutputStream fos = null;String fileName = "";try {HSSFWorkbook wb = new HSSFWorkbook();//创建⼯作薄fileName = "安全可控导出"+"_"+userid+"_"+names+".xls";DBManager dbm = new DBManager();System.out.println("quarter+"+quarter+"dptid="+dptid);try{dbm.newConnection();String str = "select departmentname from dpt_department where departmentid='"+dptid+"'"; //获取唯⼀idString dptName = dbm.executeQueryString(str);fileName=dptName+"部门安全可控清单汇总"+"_"+userid+"_"+names+".xls";//创建sheet页,并写⼊内容createSheet(dbm,wb,getCardInfo(dbm,quarter,dptid));}catch(Exception e){e.printStackTrace();}finally{dbm.closeConnection();}File ff = new File(ourl);if (ff.exists()) {ff.delete();}fos = new FileOutputStream(ourl);wb.write(fos);fos.close();String u = "/project/system/fileAction.do?filePath=" + URLEncoder.encode(ourl)+ "&fileName=" + URLEncoder.encode(fileName);response.sendRedirect(u);} catch (Exception e) {e.printStackTrace();}第⼆步:创建sheet页签public void createSheet(DBManager dbm,HSSFWorkbook w,Vector vt) throws Exception{for(int i=0;i<vt.size();i++){Hashtable ht = (Hashtable)vt.get(i);String id = (String)ht.get("id");String quarter = (String)ht.get("quarter");HSSFSheet sheet = w.createSheet("安全可控清单");//写⼊数据wirteSheet(dbm,sheet,w,id,quarter);}}我这⾥页签是固定的名称可根据⾃⼰的需要根据参数来进⾏判断页签。

最简单的Java导出Excel中的数据普通的MS Office Excel只能在本地磁盘上打开和编辑保存，这使得程序员在开发项目时受到很多的约束，许多的功能无法实现或者无法达到理想的效果。

但是通过调用PageOffice开发平台，不仅可以在线打开并保存Excel文件还可以提交Excel中的数据。

下面我就简单的和大家分享一下如何实现Excel文档的在线打开、编辑、保存和数据的提交。

第一步：拷贝文件到WEB项目的“WEB-INF/lib”目录下。

拷贝PageOffice 示例中下的“WEB-INF/lib”路径中的pageoffice.cab和pageoffice.jar到新建项目的“WEB-INF/lib”目录下。

第二步：修改WEB项目的配置文件。

将如下代码添加到配置文件中：<!-- PageOffice Begin --><servlet><servlet-name>poserver</servlet-name><servlet-class>com.zhuozhengsoft .pageoffice.poserver.Server</servlet-class></servlet><servlet-mapping><servlet-name>poserver</servlet-name><url-pattern>/poserver.do</url-pattern></servlet-mapping><servlet-mapping><servlet-name>poserver</servlet-name><url-pattern>/pageoffice.cab</url-pattern></servlet-mapping><servlet-mapping><servlet-name>poserver</servlet-name><url-pattern>/popdf.cab</url-pattern></servlet-mapping><servlet-mapping><servlet-name>poserver</servlet-name><url-pattern>/sealsetup.exe</url-pattern></servlet-mapping><servlet><servlet-name>adminseal</servlet-name><servlet-class>com.zhuozhengsoft.pageoffice.poserver.AdminSeal </servlet-class></servlet><servlet-mapping><servlet-name>adminseal</servlet-name><url-pattern>/adminseal.do</url-pattern></servlet-mapping><servlet-mapping><servlet-name>adminseal</servlet-name><url-pattern>/loginseal.do</url-pattern></servlet-mapping><servlet-mapping><servlet-name>adminseal</servlet-name><url-pattern>/sealimage.do</url-pattern></servlet-mapping><mime-mapping><extension>mht</extension><mime-type>message/rfc822</mime-type></mime-mapping><context-param><param-name>adminseal-password</param-name><param-value>123456</param-value></context-param><!-- PageOffice End -->第三步：添加引用。

jxl.jar下载地址：/index_dodownloadInfo_loadid_6.shtmlpublic class ExportExcel {public static boolean exportExcel(HttpServletResponse response, List list) {try {OutputStream os = response.getOutputStream();// 取得输出流response.reset();// 清空输出流response.setHeader("Content-disposition","attachment;filename="+CreateOrderCode.getInstance().createOrderCode()+ ".xls");// 设定输出文件头response.setContentType("application/msexcel");// 定义输出类型WritableWorkbook wbook = Workbook.createWorkbook(os); // 建立excel文件String tmptitle = "财务结算"; // 标题WritableSheet wsheet = wbook.createSheet(tmptitle, 0); // sheet名称// 设置excel标题WritableFont wfont = new WritableFont(WritableFont.ARIAL, 16,WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);WritableCellFormat wcfFC = new WritableCellFormat(wfont); wcfFC.setBackground(Colour.AQUA);wsheet.addCell(new Label(1, 0, tmptitle, wcfFC));wfont = new jxl.write.WritableFont(WritableFont.ARIAL, 14, WritableFont.BOLD, false, UnderlineStyle.NO_UNDERLINE, Colour.BLACK);wcfFC = new WritableCellFormat(wfont);// 开始生成主体内容wsheet.addCell(new Label(0, 2, "订单号"));wsheet.addCell(new Label(1, 2, "产品名称"));wsheet.addCell(new Label(2, 2, "数量"));wsheet.addCell(new Label(3, 2, "单价"));wsheet.addCell(new Label(4, 2, "成交价"));wsheet.addCell(new Label(5, 2, "购买人（会员）"));wsheet.addCell(new Label(6, 2, "购买时间"));for (int i = 0; i < list.size(); i++) {Object[] pate = (Object[])list.get(i);wsheet.addCell(new Label(0, i + 3, pate[0])); wsheet.addCell(new Label(1, i + 3, pate[1])); wsheet.addCell(new Label(2, i + 3, pate[2])); wsheet.addCell(new Label(3, i + 3, pate[3])); wsheet.addCell(new Label(4, i + 3, pate[4])); wsheet.addCell(new Label(5, i + 3, pate[5])); wsheet.addCell(new Label(6, i + 3, pate[6])); }// 主体内容生成结束wbook.write(); // 写入文件wbook.close();os.close(); // 关闭流return true;} catch (Exception ex) {ex.printStackTrace();return false;}}}。

java批量导⼊导出⽂件的实例分享（兼容xls,xlsx）⼀、介绍利⽤java实现⽂件的导⼊导出数据库，⽬前在⼤部分系统中是⽐较常见的功能了，今天写个⼩demo来理解其原理，没接触过的同学也可以看看参考下。

⽬前我所接触过的导⼊导出技术主要有POI和iReport，poi主要作为⼀些数据批量导⼊数据库，iReport做报表导出。

另外还有jxl类似poi的⽅式，不过貌似很久没跟新了，2007之后的office好像也不⽀持，这⾥就不说了。

⼆、POI使⽤详解2.1 什么是Apache POI？Apache POI是Apache软件基⾦会的开放源码函式库，POI提供API给Java程序对Microsoft Office格式档案读和写的功能。

2.2 POI的jar包导⼊本次讲解使⽤maven⼯程，jar包版本使⽤poi-3.14和poi-ooxml-3.14。

⽬前最新的版本是3.16。

因为3.15以后相关api有更新，部分操作可能不⼀样，⼤家注意下。

<!-- poi的包 3.15版本后单元格类型获取⽅式有调整 --><dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>3.14</version></dependency><dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>3.14</version></dependency>2.3 POI的API讲解2.3.1 结构HSSF －提供读写Microsoft Excel格式档案的功能。

java导出Excel⽂件的步骤全纪录⼀、背景当前B/S模式已成为应⽤开发的主流，⽽在企业办公系统中，常常有客户这样⼦要求：你要把我们的报表直接⽤Excel打开(电信系统、银⾏系统)。

或者是：我们已经习惯⽤Excel打印。

这样在我们实际的开发中，很多时候需要实现导⼊、导出Excel的应⽤。

最近在java上做了⼀个EXCEL的导出功能，写了⼀个通⽤类，在这⾥分享分享，该类⽀持多sheet，且⽆需⼿动进⾏复杂的类型转换，只需提供三个参数即可：1、fileNameexcel⽂件名2、HasMap<String,List<?>> data具体的数据，每个List代表⼀张表的数据，？表⽰可为任意的⾃定义对象3、LinkedHashMap<String,String[][]> headersStirng代表sheet名。

每个String[][]代表⼀个sheet的定义，举个例⼦如下：String[][] header = {{"field1","参数1"}，{"field2","参数2"}，{"field3","参数3"}}其中的field1，field2，field3为对象中的属性名，参数1，参数2，参数3为列名，实际上这个指定了列的名称和这个列⽤到数据对象的哪个属性。

⼆、怎么⽤以⼀个例⼦来说明怎么⽤，假设有两个类A和B定义如下：public class A{private String name;private String address;}public class B{private int id;private double sum;private String cat;}现在我们通过查询数据库获得了A和B的两个列表：List<A> dataA = .....;List<B> dataB = .....;我们将这两个导出到excel中，⾸先需要定义sheet：String[][] sheetA = {{"name","姓名"},{"address","住址"}}String[][] sheetB = {{"id","ID"},{"sum","余额"},{"cat","猫的名字"}}然后将数据汇总构造⼀个ExcelUtil：String fileName = "测试Excel";HashMap<String,List<?>> data = new HashMap<>();//ASheet为表名，后⾯headers⾥的key要跟这⾥⼀致data.put("ASheet",dataA);data.put("BSheet",dataB);LinkedHashMap<String,String[][]> headers = new LinkedHashMap<>();headers.put("ASheet",sheetA);headers.put("BSheet",sheetB);ExcelUtil excelUtil = new ExcelUtil(fileName,data,headers);//获取表格对象HSSFWorkbook workbook = excelUtil.createExcel();//这⾥内置了⼀个写到response的⽅法（判断浏览器类型设置合适的参数），如果想写到⽂件也是类似的workbook.writeToResponse(workbook,request,response);当然通常数据是通过数据库查询的，这⾥为了演⽰⽅便没有从数据库查找。