poi导出excel

<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi</artifactId>
			<version>3.10.1</version>
		</dependency>
		<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi-ooxml</artifactId>
			<version>3.10.1</version>
		</dependency>
		<dependency>
			<groupId>org.apache.poi</groupId>
			<artifactId>poi-ooxml-schemas</artifactId>
			<version>3.10.1</version>
		</dependency>

// 创建SXSSFWorkbook对象
            SXSSFWorkbook wb = new SXSSFWorkbook();
            // 创建HSSFWorkbook对象
            // 建立新的sheet对象（excel的表单）
            Sheet sheet = wb.createSheet("报表");
            // 在sheet里创建第一行，参数为行索引(excel的行)，可以是0～65535之间的任何一个
            Row row1 = sheet.createRow(0);
            // 创建单元格（excel的单元格，参数为列索引，可以是0～255之间的任何一个
//            HSSFCell cell = row1.createCell(0);
            row1.createCell(0).setCellValue("报表");

            // 1.生成字体对象
            Font font = wb.createFont();
            font.setFontHeightInPoints((short) 12);
            font.setFontName("新宋体");
            font.setBoldweight(HSSFFont.BOLDWEIGHT_BOLD); // 宽度
            // 2.生成样式对象，这里的设置居中样式和版本有关，我用的poi用HSSFCellStyle.ALIGN_CENTER会报错，所以用下面的
            CellStyle style = wb.createCellStyle();
            style.setAlignment(HSSFCellStyle.ALIGN_CENTER);// 设置居中样式
            style.setFont(font); // 调用字体样式对象
            style.setWrapText(true);
            // 3.单元格应用样式
            row1.getCell(0).setCellStyle(style);
            // 设置单元格内容
            // 合并单元格CellRangeAddress构造参数依次表示起始行，截至行，起始列， 截至列
            sheet.addMergedRegion(new CellRangeAddress(0, 0, 0, 5));
            // 在sheet里创建第二行 创建单元格并设置单元格内容及样式
            Row row2 = sheet.createRow(1);
            HashMap<Integer, String> headMap = new HashMap<Integer, String>();
            headMap.put(0, "交易时间");
            headMap.put(1, "交易类型");
            headMap.put(2, "收入");
            headMap.put(3, "支出");
            headMap.put(4, "备注");
            headMap.put(5, "会员名");
            for(int i =0;i < headMap.size();i++){
                row2.createCell(i).setCellValue(headMap.get(i));
            }
            List<PersonTransactionDetailVO> listPersonDetail = personService.findPersonDetailAll(vo);
            long startTime = System.currentTimeMillis(); // 获取开始时间
            for (int s = 0; s < listPersonDetail.size(); s++) {
                PersonTransactionDetailVO voCell = listPersonDetail.get(s);
                HashMap<Integer, String> propertiesMap = new HashMap<Integer, String>();
                propertiesMap.put(0, DateUtils.getDateToString(voCell.getUpdateDate()));
                Integer typeInteger = voCell.getType();
                String type = null;
                switch (typeInteger) {
                    case 1:
                        type = "充值";
                        break;
                    case 2:
                        type = "提现";
                        break;
                    case 4:
                        type = "投标";
                        break;
                    case 5:
                        type = "收回本金";
                        break;
                    case 6:
                        type = "收回利息";
                        break;
                    case 7:
                        type = "提现手续费";
                        break;
                }
                propertiesMap.put(1, type);
                if(typeInteger == 1 || typeInteger == 5 || typeInteger == 6){
                    propertiesMap.put(2, voCell.getMoney().toString());
                }else{
                    propertiesMap.put(2, "");
                }
                if(typeInteger == 2 || typeInteger == 4 || typeInteger == 7){
                    propertiesMap.put(3, voCell.getMoney().toString());
                }else{
                    propertiesMap.put(3, "");
                }
                if(null == voCell.getRemark()){
                    propertiesMap.put(4, "");
                }else{
                    propertiesMap.put(4, voCell.getRemark());
                }
                propertiesMap.put(5, voCell.getLname());
                // 从sheet第三行开始填充数据
                Row rowx = sheet.createRow(s + 2);
                for(int k =0; k < headMap.size();k++){
                    rowx.createCell(k).setCellValue(propertiesMap.get(k));
                    rowx.getCell(k).setCellStyle(style);

                }
            }
            long endTime = System.currentTimeMillis(); // 获取结束时间

            System.out.println("程序运行时间： " + (endTime - startTime) + "ms");
            // 最后做统计，获取前台传过来的数据
            // 在sheet里创建最后一行
            Row rowCount = sheet.createRow(2 + listPersonDetail.size());
            // 创建单元格并设置单元格内容及样式
            rowCount.createCell(0).setCellValue("收入合计");
            rowCount.createCell(1).setCellValue(allIncome);
            rowCount.createCell(2).setCellValue("支出合计");
            rowCount.createCell(3).setCellValue(allOutcome);
            // 单元格宽度自适应
            for(int j = 0;j < headMap.size();j++){
                sheet.autoSizeColumn((j));
            }
            Date dt = new Date();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMddhhmm");
            response.setContentType("octets/stream");
            String excelName = "交易明细表" + sdf.format(dt);
            // 转码防止乱码
            response.addHeader("Content-Disposition", "attachment;filename=" + new String(excelName.getBytes("gb2312"),
                    "ISO8859-1") + ".xls");
            OutputStream out = response.getOutputStream();
            wb.write(out);
            out.close();