public static void main(String[] args) throws Exception{
        String[] headers = {"學號"};
        List<Object[]> dataset = new ArrayList<Object[]>();
        dataset.add(new Object[]{"1"});
        dataset.add(new Object[]{"2"});
        dataset.add(new Object[]{"3"});
        dataset.add(
 
new Object[]{"4"});
        dataset.add(new Object[]{"5"});
        Date date = new Date();
        DateFormat dateFormat = new SimpleDateFormat("yyy-MM-dd");
        String format = dateFormat.format(date);
        String title = "測試POI匯出EXCEL文件";
        String path = "D:/";
        exportMessageExcelFile(title, headers, dataset, 
 
null, format);
    }

    /**
     * 匯出excel表
     *
     * @param title       表格名稱
     * @param headers     excel列名      ['',''] String陣列
     * @param dossierList excel資料  list<Object>
     * @param out         資料流
     * @param pattern
     * @return
     */
    public static Map<String, Object> exportMessageExcelFile(String title, String[] headers, List dossierList, String path, String pattern) {

        OutputStream out 
 
= null;
        try {
            if(StringUtils.isEmpty(path)){
                path = "D:/fiscal/";
            }
            File file = new File(path);
            if (!file.exists()) {// 判斷目錄是否存在
                file.mkdir();
            }
            out = new FileOutputStream(path + title + ".xls",true);
        } catch (Exception e) {
            e.printStackTrace();
        }
        boolean flag = true;
        Map<String, Object> map = new HashMap<String, Object>();
        StringBuffer messageFile = new StringBuffer();
        // 宣告一個工作薄
        HSSFWorkbook workbook = new HSSFWorkbook();
        // 生成一個表格
        HSSFSheet sheet = workbook.createSheet(title);
        // 設定表格預設列寬度為15個位元組
        sheet.setDefaultColumnWidth((short) 15);
        // 生成一個樣式
        HSSFCellStyle style = workbook.createCellStyle();
        style.setBorderBottom(HSSFCellStyle.BORDER_THIN);
        style.setBorderLeft(HSSFCellStyle.BORDER_THIN);
        style.setBorderRight(HSSFCellStyle.BORDER_THIN);
        style.setBorderTop(HSSFCellStyle.BORDER_THIN);
        style.setAlignment(HSSFCellStyle.ALIGN_CENTER);
        //產生表格標題行
        HSSFRow row = sheet.createRow(0);
        for (short i = 0; i < headers.length; i++) {
            HSSFCell cell = row.createCell(i);
            cell.setCellStyle(style);
            HSSFRichTextString text = new HSSFRichTextString(headers[i]);
            cell.setCellValue(text);
        }
        for (int i = 0; i < dossierList.size(); i++) {
            Object[] obj = (Object[]) dossierList.get(i);
            row = sheet.createRow(i + 1);
            for (int j = 0; j < obj.length; j++) {
                HSSFCell cell = row.createCell(j);
                cell.setCellStyle(style);
                if (j == 0) {
                    cell.setCellValue(i + 1);//序號
                }
                if (j == 1) {
                    //Logger.debug("obj[5]"+obj[5]);
                    cell.setCellValue(obj[5] == null ? "" : obj[5].toString());//辦理人
                }
                if (j == 2) {
                    //Logger.debug("obj[3]"+obj[3]);
                    cell.setCellValue(obj[3] == null ? "" : obj[3].toString());//辦理時間
                }
                if (j == 3) {
                    // Logger.debug("obj[2]"+obj[2]);
                    cell.setCellValue(obj[2] == null ? obj[6] == null ? "" : obj[6].toString() : obj[2].toString());//辦理意見
                    if (null != obj[6] && !"".equals(obj[6])) {
                        messageFile.append(obj[6].toString() + ",");
                    }
                    break;
                }
            }
        }
        map.put("messageFile", messageFile.toString().endsWith(",") ? messageFile.toString().substring(0, messageFile.toString().length() - 1) : messageFile.toString());
        try {
            workbook.write(out);
        } catch (IOException e) {
            e.printStackTrace();
            flag = false;
        } finally {
            //清理資源
            try {
                if (out != null) {
                    out.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        map.put("flag", flag);
        return map;
    }