Excel单页导出以及多sheet导出

注意，我将一些方法抽出来放到文章末尾了，这几个方法为：

desStyle，titleStyle，celStyle

功能一.Excel单页导出，即将所有的数据导入一个sheet页

导出Excel的主方法，所需参数只需要有request和response即可，另外两个是我为了查询写入Excel数据而加入的（一个是我的service，一个是我的实体类），使用时直接复制此方法即可。

另外，其中会有一些方法，诸如getFormatDate_ymd和toUTF8String等都是一些自己写的格式数据格式的方法，这些方法取决于你的数据是否需要格式化,这些都无伤大雅，这几个方法我也在下面列出来了。：

    public static String meBespokeExportedEexecl(TsinghuaMeBespoke tsinghuaMeBespoke,HttpServletResponse response, HttpServletRequest request,TsinghuaMeBespokeService tsinghuaMeBespokeService) throws Exception {List<TsinghuaMeBespoke> tsinghuaMeBespokeList = tsinghuaMeBespokeService.findMyList(tsinghuaMeBespoke);HSSFWorkbook workBook = new HSSFWorkbook();ServletOutputStream out = null;String[] titles = {"序号", "姓名","性别", "身份证号","预约状态", "预约日期", "预约时段","体检套餐","套餐金额","实付金额","交费时间","学号","考试号","手机","院","系","生日"};CellStyle desStyle = workBook.createCellStyle();CellStyle titleStyle = workBook.createCellStyle();CellStyle celStyle = workBook.createCellStyle();titleStyle.setAlignment(CellStyle.ALIGN_CENTER);titleStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);CellStyle contentOddStyle = workBook.createCellStyle();contentOddStyle.setAlignment(CellStyle.ALIGN_CENTER);contentOddStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//              contentOddStyle.setWrapText(true);
//              contentOddStyle.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);contentOddStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);contentOddStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);CellStyle contentEvenStyle = workBook.createCellStyle();contentEvenStyle.setAlignment(CellStyle.ALIGN_CENTER);contentEvenStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//              contentEvenStyle.setWrapText(true);
//              contentEvenStyle.setFillForegroundColor(HSSFColor.WHITE.index);contentEvenStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);contentEvenStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);HSSFSheet sheet = workBook.createSheet("**体检人员预约信息表");Row desRow = sheet.createRow(0);// 合并单元格：参数：起始行, 终止行, 起始列, 终止列CellRangeAddress cra = new CellRangeAddress(0, 0, 0, (titles.length - 1));sheet.addMergedRegion(cra);//sheet.addMergedRegion(new Region(0, (short) 0, 0, titles.length > 0 ? (short) (titles.length - 1) : (short) 0));Cell descell = desRow.createCell(0);desRow.setHeight((short)900);descell.setCellValue("清华体检人员预约信息表");descell.setCellStyle(desStyle(workBook, desStyle));try{// 标题信息Row titleRow = sheet.createRow(1);for (int i = 0; i < titles.length; i++) {Cell cell = titleRow.createCell(i);cell.setCellValue(titles[i]);cell.setCellStyle(titleStyle(workBook, titleStyle));titleRow.setHeight((short) 600);sheet.setColumnWidth(i, 7200);}Cell cell = null;for (int j = 0; j < tsinghuaMeBespokeList.size(); j++) {TsinghuaMeBespoke m = tsinghuaMeBespokeList.get(j);Row row = sheet.createRow(j + 2);row.setHeight((short) 300);//数据设置//人名String realnamed=m.getRealname();String realname;if(realnamed!=null && !"".equals(realnamed)){realname=realnamed;}else{realname=" ";}//性别String sex=m.getSex();if("1".equals(sex)){sex="男";}else if("2".equals(sex)){sex="女";}else{sex=" ";}//身份证号String identityCardd= m.getIdentityCard();String identityCard;if(identityCardd!=null && !"".equals(identityCardd)){identityCard=identityCardd;}else{identityCard="";}//预约状态String bespokeStatus= m.getBespokeStatus();if("0".equals(bespokeStatus)){bespokeStatus="未预约";}else if("1".equals(bespokeStatus)){bespokeStatus="已预约";}else if("2".equals(bespokeStatus)){bespokeStatus="已报到";}else{bespokeStatus=" ";  //未录入}//预约日期Date bespokeDated= m.getBespokeDate();String bespokeDate="";if(bespokeDated!=null && !"".equals(bespokeDated)){bespokeDate=MyDateUtils.getFormatDate_ymd(bespokeDated);}//预约时段  开始String periodStartd=m.getPeriodStart();String periodStart="";if(periodStartd!=null && !"".equals(periodStartd)){periodStart=periodStartd;}//预约时段  结束String periodEndd=m.getPeriodEnd();String periodEnd="";if(periodEndd!=null && !"".equals(periodEndd)){periodEnd=periodEndd;}//预约时段String periodTime=periodStart+"-"+periodEnd;//体检套餐String feescaleNamed=m.getFeescaleName();String feescaleName="";if(feescaleNamed!=null && !"".equals(feescaleNamed)){feescaleName=feescaleNamed;}//套餐金额Double feescaleMoneyd=m.getFeescaleMoney();String feescaleMoney="";if(feescaleMoneyd!=null && !"".equals(feescaleNamed)){feescaleMoney=feescaleMoneyd.toString();}//实付金额Double paymentMoneyd=m.getPaymentMoney();String paymentMoney="";if(paymentMoneyd!=null && !"".equals(paymentMoneyd)){paymentMoney=paymentMoneyd.toString();}//交费时间Date paymentDated= m.getPaymentTime();String paymentDate="";if(paymentDated!=null && !"".equals(paymentDated)){paymentDate=MyDateUtils.getFormatDate_ymd(paymentDated);}//学号String studentIdd=m.getStudentId();String studentId="";if(studentIdd!=null && !"".equals(studentIdd)){studentId=studentIdd;}//考试号 EXAMINE_NUMBERString examineNumberd=m.getExamineNumber();String examineNumber="";if(examineNumberd!=null && !"".equals(examineNumberd)){examineNumber=examineNumberd;}//手机String sjd=m.getSj();String sj="";if(sjd!=null && !"".equals(sjd)){sj=sjd;}//院String departmentd=m.getDepartment();String department="";if(departmentd!=null && !"".equals(departmentd)){department=departmentd;}//系String facultyd=m.getFaculty();String faculty="";if(facultyd!=null && !"".equals(facultyd)){faculty=facultyd;}//生日Date birthDated= m.getBirthDate();String birthDate="";if(birthDated!=null && !"".equals(birthDated)){birthDate=MyDateUtils.getFormatDate_ymd(birthDated);}String[] cellContents = {String.valueOf(j + 1),realname,sex,identityCard,bespokeStatus,bespokeDate,periodTime,feescaleName,feescaleMoney,paymentMoney,paymentDate,studentId,examineNumber,sj,department,faculty,birthDate};for (int i = 0; i < cellContents.length; i++) {String content = cellContents[i];cell = row.createCell(i);cell.setCellValue(content);cell.setCellStyle(celStyle(workBook, celStyle));
//                  cell.setCellStyle(j % 2 != 0 ? contentOddStyle : contentEvenStyle);}}// 文件名StringBuffer fileName = new StringBuffer("**体检人员预约信息列表");fileName.append(MyDateUtils.getFormatDate(new Date()));fileName.append(".xls");response.setHeader("Content-disposition", "attachment;filename=" + toUTF8String(fileName.toString()));response.flushBuffer();out = response.getOutputStream();workBook.write(out);} catch (Exception e) {e.printStackTrace();} finally {try {out.flush();out.close();} catch (IOException e) {e.printStackTrace();}}return null;}

几个无伤大雅的格式化的方法：

public static String toUTF8String(String s) {StringBuffer sb = new StringBuffer();for (int i = 0; i < s.length(); i++) {char c = s.charAt(i);if (c >= 0 && c <= 255) {sb.append(c);} else {byte[] b;try {b = Character.toString(c).getBytes(StandardCharsets.UTF_8);} catch (Exception ex) {System.out.println(ex);b = new byte[0];}for (int j = 0; j < b.length; j++) {int k = b[j];if (k < 0)k += 256;sb.append("%" + Integer.toHexString(k).toUpperCase());}}}return sb.toString();}
public static String getFormatDate_ymd(Date date){String  formatStr="";if(date!=null &&!"".equals(date)){formatStr = new SimpleDateFormat("yyyy-MM-dd").format(date);}return formatStr;}

功能二.Excel导出数据为多个sheet页

之所以会导出为多个sheet页，是因为excel的单个sheet页的容量是有限的，比如：

在Excel 2003中，每个工作表有65535行和256列，而在Excel 2007以上版本中，每个工作表有1048576行和16384列。

其实很简单，我们只需要仔细调整一些循环条件即可，判断新建sheet页的情况就可以了，代码如下，我就不再多赘述了，和上面的对比一下就能了解：

    /*** 资费列表导出Excel* @param tsinghuaMeBespoke* @param response* @param request* @return* @throws Exception*/public static String meFeescaleExportedEexecl(TsinghuaMeBespoke tsinghuaMeBespoke,HttpServletResponse response, HttpServletRequest request,TsinghuaMeBespokeService tsinghuaMeBespokeService) throws Exception {List<TsinghuaMeBespoke> tsinghuaMeBespokeList = tsinghuaMeBespokeService.findFeeacleList(tsinghuaMeBespoke);HSSFWorkbook workBook = new HSSFWorkbook();ServletOutputStream out = null;String[] titles = {"序号", "姓名", "身份证号", "交费时间", "交费金额"};CellStyle desStyle = workBook.createCellStyle();CellStyle titleStyle = workBook.createCellStyle();CellStyle celStyle = workBook.createCellStyle();titleStyle.setAlignment(CellStyle.ALIGN_CENTER);titleStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);CellStyle contentOddStyle = workBook.createCellStyle();contentOddStyle.setAlignment(CellStyle.ALIGN_CENTER);contentOddStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//              contentOddStyle.setWrapText(true);
//              contentOddStyle.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);contentOddStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);contentOddStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);contentOddStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);CellStyle contentEvenStyle = workBook.createCellStyle();contentEvenStyle.setAlignment(CellStyle.ALIGN_CENTER);contentEvenStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//              contentEvenStyle.setWrapText(true);
//              contentEvenStyle.setFillForegroundColor(HSSFColor.WHITE.index);contentEvenStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);contentEvenStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);contentEvenStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);long sheetMax=0l;long rowEveP=3;  //每页的数据条数try{for (int sheetI = 0; sheetI< tsinghuaMeBespokeList.size(); sheetI++){if(sheetI%rowEveP==0){   //取余条件为每个分页的数据条数HSSFSheet sheet = workBook.createSheet("清华体检人员交费信息表<"+sheetMax+">");Row desRow = sheet.createRow(0);// 合并单元格：参数：起始行, 终止行, 起始列, 终止列CellRangeAddress cra = new CellRangeAddress(0, 0, 0, (titles.length - 1));sheet.addMergedRegion(cra);//sheet.addMergedRegion(new Region(0, (short) 0, 0, titles.length > 0 ? (short) (titles.length - 1) : (short) 0));Cell descell = desRow.createCell(0);desRow.setHeight((short)900);descell.setCellValue("**体检人员交费信息表<"+sheetMax+">");descell.setCellStyle(desStyle(workBook, desStyle));// 标题信息Row titleRow = sheet.createRow(1);for (int i = 0; i < titles.length; i++) {Cell cell = titleRow.createCell(i);cell.setCellValue(titles[i]);cell.setCellStyle(titleStyle(workBook, titleStyle));titleRow.setHeight((short) 600);sheet.setColumnWidth(i, 7200);}Cell cell = null;for (int j = 0; j <rowEveP; j++) {     // tsinghuaMeBespokeList.size() 此处设置每个分页多少条数据//判断是否超出数组容量if(sheetI+j<tsinghuaMeBespokeList.size()){TsinghuaMeBespoke m = tsinghuaMeBespokeList.get(sheetI+j);   //j  每个分页的每条数据Row row = sheet.createRow(j + 2);row.setHeight((short) 300);//日期格式化String paymentDate =MyDateUtils.getFormatDate_ymd(m.getPaymentTime());String[] cellContents = {String.valueOf(j + 1),m.getRealname(),m.getIdentityCard(),paymentDate,m.getPaymentMoney().toString()};for (int i = 0; i < cellContents.length; i++) {String content = cellContents[i];cell = row.createCell(i);cell.setCellValue(content);cell.setCellStyle(celStyle(workBook, celStyle));//                 cell.setCellStyle(j % 2 != 0 ? contentOddStyle : contentEvenStyle);}}}sheetMax++;}}/*原代码块位置*/// 文件名StringBuffer fileName = new StringBuffer("**体检人员交费信息列表");fileName.append(MyDateUtils.getFormatDate(new Date()));fileName.append(".xls");response.setHeader("Content-disposition", "attachment;filename=" + toUTF8String(fileName.toString()));response.flushBuffer();out = response.getOutputStream();workBook.write(out);} catch (Exception e) {e.printStackTrace();} finally {try {out.flush();out.close();} catch (IOException e) {e.printStackTrace();}}return null;}

大事儿，几个抽出来的设置样式的方法（要不然代码太多不怎么好看）

 //设置public static CellStyle desStyle(HSSFWorkbook wb, CellStyle ccellStyle) {ccellStyle.setAlignment(CellStyle.ALIGN_CENTER);
//        ccellStyle.setFillForegroundColor(HSSFColor.WHITE.index);
//        style1.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);ccellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);ccellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//        ccellStyle.setWrapText(true);ccellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框ccellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);// 左边框ccellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);// 上边框ccellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框Font font = wb.createFont();font.setBoldweight(Font.BOLDWEIGHT_BOLD);//font.setColor(HSSFColor.BLACK.index);font.setFontHeight((short) 800);font.setFontHeightInPoints((short) 16);// 设置字体大小ccellStyle.setFont(font);return ccellStyle;}public static CellStyle titleStyle(HSSFWorkbook wb, CellStyle cellStyle) {cellStyle.setAlignment(CellStyle.ALIGN_CENTER);cellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//        cellStyle.setWrapText(true);
//        cellStyle.setFillForegroundColor(HSSFColor.GREY_25_PERCENT.index);
//        cellStyle.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);Font font = wb.createFont();font.setBoldweight(Font.BOLDWEIGHT_BOLD);
//        font.setColor(HSSFColor.BLUE.index);cellStyle.setFont(font);cellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框cellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);// 左边框cellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);// 上边框cellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框
//        cellStyle.setBorderBottom(HSSFCellStyle.BORDER_DOUBLE);
//        cellStyle.setBorderLeft(HSSFCellStyle.BORDER_DOUBLE);
//        cellStyle.setBorderRight(HSSFCellStyle.BORDER_DOUBLE);
//        cellStyle.setBorderTop(HSSFCellStyle.BORDER_DOUBLE);return cellStyle;}public static CellStyle celStyle(HSSFWorkbook wb, CellStyle ccellStyle) {ccellStyle.setAlignment(CellStyle.ALIGN_CENTER);
//        ccellStyle.setFillForegroundColor(HSSFColor.WHITE.index);
//        style1.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);ccellStyle.setAlignment(HSSFCellStyle.ALIGN_CENTER);ccellStyle.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);
//        ccellStyle.setWrapText(true);ccellStyle.setBorderBottom(HSSFCellStyle.BORDER_THIN); // 下边框ccellStyle.setBorderLeft(HSSFCellStyle.BORDER_THIN);// 左边框ccellStyle.setBorderTop(HSSFCellStyle.BORDER_THIN);// 上边框ccellStyle.setBorderRight(HSSFCellStyle.BORDER_THIN);// 右边框Font font = wb.createFont();
//        font.setBoldweight(Font.BOLDWEIGHT_BOLD);//font.setColor(HSSFColor.BLACK.index);font.setFontHeight((short) 1000);font.setFontHeightInPoints((short) 12);// 设置字体大小ccellStyle.setFont(font);return ccellStyle;}

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