java导出Excel之多个sheet

做数据报表的时候，有时候需要将一组数据，导出到一个Excel的多个sheet中。

0014编号10016编号1合计10编号10025编号20025编号2合计10编号20037编号3合计7编号3如上图所示，为数据库查询出来的数据集合。如果用我上一篇博客ava导出Excel通用方法的方法导出，只能导出到一个sheet中。

现将方法改进，根据指定值（合计）将内容拆分到多个sheet中。代码如下

package lcy._41_50;import java.io.FileOutputStream;import org.apache.poi.hssf.usermodel.HSSFCell;import org.apache.poi.hssf.usermodel.HSSFCellStyle;import org.apache.poi.hssf.usermodel.HSSFFont;import org.apache.poi.hssf.usermodel.HSSFRow;import org.apache.poi.hssf.usermodel.HSSFSheet;import org.apache.poi.hssf.usermodel.HSSFWorkbook;import org.apache.poi.hssf.util.CellRangeAddress;import org.apache.poi.hssf.util.HSSFColor;@SuppressWarnings( { "deprecation" })public class Test47 {public static void main(String[] args) throws Exception {String sheetName = "demo";String titleName = "根据指定值拆分list存入多个sheet";int columnNumber = 3;int[] columnWidth = { 10, 10, 10 };String[][] dataList = { { "001", "4", "编号1" }, { "001", "6", "编号1" },{ "合计", "10", "编号1" }, { "002", "5", "编号2" },{ "002", "5", "编号2" }, { "合计", "10", "编号2" },{ "003", "7", "编号3" }, { "合计", "7", "编号3" } };String[] columnName = { "编号", "数值", "编码" };int sheetNameNumbers = 3;// 要拆分成多少个sheet,可以通过for循环从dataList求出new Test47().ExportNoResponse(sheetNameNumbers, sheetName, titleName,columnNumber, columnWidth, columnName, dataList);}public void ExportNoResponse(int sheetNameNumbers, String titleName,String fileName, int columnNumber, int[] columnWidth,String[] columnName, String[][] dataList) throws Exception {int a = 0;int b = 0;int c = 0;int d = dataList[0].length - 1;if (columnNumber == columnWidth.length&& columnWidth.length == columnName.length) {// 第一步，创建一个webbook，对应一个Excel文件HSSFWorkbook wb = new HSSFWorkbook();// 第二步，在webbook中添加一个sheet,对应Excel文件中的sheetfor (int i = 0; i < dataList.length; i++) {if (dataList[i][0].equals("合计")) {a = i;b = a;break;}}for (int m = 0; m < sheetNameNumbers; m++) {HSSFSheet sheet = null;// 为每个sheet命名for (int i = a; i < dataList.length; i++) {if (i == b) {sheet = wb.createSheet(dataList[b][d]);b = 0;break;} else if (dataList[i + 1][0].equals("合计")) {c = a + 1;sheet = wb.createSheet(dataList[i + 1][d]);a = i + 1;break;}}for (int i = 0; i < columnNumber; i++) {for (int j = 0; j <= i; j++) {if (i == j) {sheet.setColumnWidth(i, columnWidth[j] * 256); // 单独设置每列的宽}}}// 创建第0行 也就是标题HSSFRow row1 = sheet.createRow((int) 0);row1.setHeightInPoints(50);// 设备标题的高度// 第三步创建标题的单元格样式style2以及字体样式headerFont1HSSFCellStyle style2 = wb.createCellStyle();style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);style2.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);style2.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);HSSFFont headerFont1 = (HSSFFont) wb.createFont(); // 创建字体样式headerFont1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 字体加粗headerFont1.setFontName("黑体"); // 设置字体类型headerFont1.setFontHeightInPoints((short) 15); // 设置字体大小style2.setFont(headerFont1); // 为标题样式设置字体样式HSSFCell cell1 = row1.createCell(0);// 创建标题第一列sheet.addMergedRegion(new CellRangeAddress(0, 0, 0,columnNumber - 1)); // 合并列cell1.setCellValue(titleName); // 设置值标题cell1.setCellStyle(style2); // 设置标题样式//创建第1行 也就是表头HSSFRow row = sheet.createRow((int) 1);row.setHeightInPoints(37);// 设置表头高度//第四步，创建表头单元格样式 以及表头的字体样式HSSFCellStyle style = wb.createCellStyle();style.setWrapText(true);// 设置自动换行style.setAlignment(HSSFCellStyle.ALIGN_CENTER);style.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 创建一个居中格式style.setBottomBorderColor(HSSFColor.BLACK.index);style.setBorderBottom(HSSFCellStyle.BORDER_THIN);style.setBorderLeft(HSSFCellStyle.BORDER_THIN);style.setBorderRight(HSSFCellStyle.BORDER_THIN);style.setBorderTop(HSSFCellStyle.BORDER_THIN);HSSFFont headerFont = (HSSFFont) wb.createFont(); // 创建字体样式headerFont.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 字体加粗headerFont.setFontName("黑体"); // 设置字体类型headerFont.setFontHeightInPoints((short) 10); // 设置字体大小style.setFont(headerFont); // 为标题样式设置字体样式//第四.一步，创建表头的列for (int i = 0; i < columnNumber; i++) {HSSFCell cell = row.createCell(i);cell.setCellValue(columnName[i]);cell.setCellStyle(style);}//为数据内容设置特点新单元格样式1 自动换行 上下居中HSSFCellStyle zidonghuanhang = wb.createCellStyle();zidonghuanhang.setWrapText(true);// 设置自动换行zidonghuanhang.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); //创建一个居中格式//设置边框zidonghuanhang.setBottomBorderColor(HSSFColor.BLACK.index);zidonghuanhang.setBorderBottom(HSSFCellStyle.BORDER_THIN);zidonghuanhang.setBorderLeft(HSSFCellStyle.BORDER_THIN);zidonghuanhang.setBorderRight(HSSFCellStyle.BORDER_THIN);zidonghuanhang.setBorderTop(HSSFCellStyle.BORDER_THIN);//为数据内容设置特点新单元格样式2 自动换行 上下居中左右也居中HSSFCellStyle zidonghuanhang2 = wb.createCellStyle();zidonghuanhang2.setWrapText(true);// 设置自动换行zidonghuanhang2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER); // 创建一个上下居中格式zidonghuanhang2.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 左右居中//设置边框zidonghuanhang2.setBottomBorderColor(HSSFColor.BLACK.index);zidonghuanhang2.setBorderBottom(HSSFCellStyle.BORDER_THIN);zidonghuanhang2.setBorderLeft(HSSFCellStyle.BORDER_THIN);zidonghuanhang2.setBorderRight(HSSFCellStyle.BORDER_THIN);zidonghuanhang2.setBorderTop(HSSFCellStyle.BORDER_THIN);//第五步，创建单元格，并设置值for (int i = c, l = 0; i <= a; i++, l++) {row = sheet.createRow((int) l + 2);HSSFCell datacell = null;for (int j = 0; j < columnNumber; j++) {datacell = row.createCell(j);datacell.setCellValue(dataList[i][j]);datacell.setCellStyle(zidonghuanhang2);}}}// 第六步，将文件存到指定位置 由于方法中无HttpServletResponse response参数，为了测试 run as// java application.try {FileOutputStream fout = new FileOutputStream("D:students.xls");wb.write(fout);String str = "导出" + fileName + "成功！";System.out.println(str);fout.close();} catch (Exception e) {e.printStackTrace();String str1 = "导出" + fileName + "失败！";System.out.println(str1);}//// 第六步，将文件存到浏览器设置的下载位置// 当方法为void Export(String sheetName,String titleName,String// fileName,int columnNumber,// int[] columnWidth,String[] columnName,String[][]// dataList,HttpServletResponse response)时候，调用取用当前第六步存文件// String filename = fileName+".xls";// response.setContentType("application/ms-excel;charset=UTF-8");// response.setHeader("Content-Disposition",// "attachment;filename=".concat(String.valueOf(URLEncoder.encode(filename,// "UTF-8"))));// OutputStream out = response.getOutputStream();// try {// wb.write(out);//将数据写出去// String str="导出"+fileName+"成功！";// System.out.println(str);// } catch (Exception e) {// e.printStackTrace();// String str1="导出"+fileName+"失败！";// System.out.println(str1);// }finally{// out.close();// }} else {System.out.println("列数目长度名称三个数组长度要一致");}}}

下面附上导出后的excel截图