Java通过HSSFWorkbook实现一张excel生成多个sheet页

//待调用的后端方法
@RequestMapping(value = "/manage/list/export")
@ResponseBody
public void doExportExcel(HttpServletResponse response,HttpServletRequest request,String keyId) {
        OutputStream ouputStream = null;
        try {
            ReturnDO rdo = excelService.getEXCELVOById(keyId);
            if (rdo.isSuccess() && StringTool.isNotEmpty(rdo.getObj())) {
                HSSFWorkbook wb = new HSSFWorkbook();
                //第一页sheet表
                exportExcel(wb, 0, "表1",rdo.getObj());
                //第二页sheet表
                exportExcel(wb, 1, "表2",rdo.getObj());
                response.setContentType("application/vnd.ms-excel");
                response.setHeader("Content-disposition",
                        "attachment;filename=excelReport.xls");
                ouputStream = response.getOutputStream();
                wb.write(ouputStream);
                ouputStream.flush();
                ouputStream.close();
            }
        } catch (Exception e) {
            logger.debug("导出异常" + e.getMessage());
            e.printStackTrace();
            try {
                ouputStream.close();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
        }
}

其中exportExcel(wb, 0, "表1",rdo.getObj()); 就是给每个sheet页赋值的方法

//sheetNum页数，sheetTiTle页标题, ReportVO数据实体类
public void exportExcel(HSSFWorkbook workbook, int sheetNum, String sheetTitle, ReportVO vo) throws Exception {
        // 生成一个表格
        HSSFSheet sheet = workbook.createSheet();
        workbook.setSheetName(sheetNum, sheetTitle);

        // 生成一个样式
        HSSFCellStyle style = workbook.createCellStyle();
        // 设置背景色
        style.setFillForegroundColor(HSSFColor.LIGHT_TURQUOISE.index);
        style.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);

        //设置边框居中
        style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        style.setBorderRight(HSSFCellStyle.BORDER_THIN);
        style.setBorderTop(HSSFCellStyle.BORDER_THIN);
        style.setAlignment(HSSFCellStyle.ALIGN_LEFT);
//        style.setAlignment(HorizontalAlignment.CENTER);// 文字水平居中
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 居中

        // 设置字体
        HSSFFont font = workbook.createFont();
        font.setFontName("仿宋_GB2312");
        font.setColor(HSSFColor.OLIVE_GREEN.index);
        font.setFontHeightInPoints((short) 24);
        font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        // 把字体应用到当前的样式
        style.setFont(font);
        //生成一行
        HSSFRow row = sheet.createRow((int) 0);
        row.setHeightInPoints(20);
        HSSFCell cell = row.createCell(0);
        cell.setCellValue(sheetTitle);
        cell.setCellStyle(style);
        for (int i = 1; i < 3; i++) {
            cell = row.createCell(i);
            cell.setCellStyle(style);
        }
        sheet.addMergedRegion(new org.apache.poi.ss.util.CellRangeAddress(0, 1, 0, 2));

        // 设置字体
        // 生成一个样式
        HSSFCellStyle style1 = workbook.createCellStyle();
        // 设置背景色
        style1.setFillForegroundColor(HSSFColor.LIGHT_ORANGE.index);
        style1.setFillPattern(HSSFCellStyle.SOLID_FOREGROUND);
        style1.setVerticalAlignment(CellStyle.VERTICAL_CENTER);

        //设置边框
        style1.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        style1.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        style1.setBorderRight(HSSFCellStyle.BORDER_THIN);
        style1.setBorderTop(HSSFCellStyle.BORDER_THIN);
        style1.setAlignment(HSSFCellStyle.ALIGN_LEFT);
        style1.setAlignment(HSSFCellStyle.ALIGN_CENTER); // 居中
        HSSFFont font1 = workbook.createFont();
        font1.setFontName("仿宋_GB2312");
        font1.setColor(HSSFColor.BLACK.index);
        font1.setFontHeightInPoints((short) 10);
        font1.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        // 把字体应用到当前的样式
        style1.setFont(font1);
        style1.setWrapText(true);

        //生成一行
        HSSFRow row2 = sheet.createRow((int) 2);
        row.setHeightInPoints(20);
        HSSFCell cell1 = row2.createCell(0);
        cell1.setCellValue("名称");
        cell1.setCellStyle(style1);
        sheet.setColumnWidth(0, 5000);

        cell1 = row2.createCell(1);
        cell1.setCellValue("类型");
        cell1.setCellStyle(style1);
        sheet.setColumnWidth(1, 5000);

        cell1 = row2.createCell(2);
        cell1.setCellValue("时间");
        cell1.setCellStyle(style1);
        sheet.setColumnWidth(2, 5000);

        // 生成一个样式
        HSSFCellStyle style2 = workbook.createCellStyle();

        //设置边框
        style2.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        style2.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        style2.setBorderRight(HSSFCellStyle.BORDER_THIN);
        style2.setBorderTop(HSSFCellStyle.BORDER_THIN);
        style2.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        style2.setVerticalAlignment(HSSFCellStyle.VERTICAL_CENTER);//垂直居中

        // 设置字体
        HSSFFont font2 = workbook.createFont();
        font2.setFontName("仿宋_GB2312");
        font2.setColor(HSSFColor.BLACK.index);
        font2.setFontHeightInPoints((short) 10);
//        font5.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD);
        // 把字体应用到当前的样式
        style2.setFont(font2);

        HSSFRow row3 = sheet.createRow((int) 3);
        if(StringTool.isNotEmpty(vo.getList()) &&
                vo.getList().size()>0){
            for(int i=0;i< vo.getList().size();i++){
                ElementStepSchedule bean = vo.getList().get(i);
                row3 = sheet.createRow((int) 3 + i);

                cell1 = row3.createCell(0);
                cell1.setCellValue(bean.getName());
                cell1.setCellStyle(style2);

                cell1 = row3.createCell(1);
                String type= "";
                if (StringTool.isNotEmpty(bean.getType())) {
                    if(bean.getType().equals("1")){
                        type= "TRUE";
                    }else if(bean.getType().equals("2")){
                        type= "FLASE";
                    }
                }
                cell1.setCellValue(type);
                cell1.setCellStyle(style2);

                cell1 = row3.createCell(2);
                cell1.setCellValue(DateUtil.formatDateToString(bean.getTime(), "yyyy-MM-dd HH:mm:ss"));
                cell1.setCellStyle(style2);

             
            }
        }

    }