public String getCellValue(Cell cell) {
        String value = "";
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
        if (cell != null){
            switch (cell.getCellTypeEnum()) {
                case STRING:
                    value = cell.getRichStringCellValue().getString();
                    break;
                case NUMERIC:
                    String debug_str = cell.getCellStyle().getDataFormatString();

                    if ("m/d/yy".equals(cell.getCellStyle().getDataFormatString()) || "yyyy\\-mm\\-dd".equals(cell.getCellStyle().getDataFormatString())) {
                        value = sdf.format(cell.getDateCellValue());
                    } else {
                        DecimalFormat df = new DecimalFormat("#");
                        value = df.format(cell.getNumericCellValue());
//                    value = String.valueOf(cell.getNumericCellValue());
                    }
                    break;
                case BOOLEAN:
                    value = String.valueOf(cell.getBooleanCellValue());
                    break;
                default:
                    break;
            }
        }
        return RegexUtils.trimSpaceTag(value);
    }