导入Excel的时候好像不支持日期型 about excelutil HOT 2 CLOSED

private static Object getCellValue(Cell cell) {
        if (cell == null
                || (cell.getCellType() == Cell.CELL_TYPE_STRING && StringUtils.isBlank(cell
                .getStringCellValue()))) {
            return null;
        }
        int cellType = cell.getCellType();
        switch (cellType) {
            case Cell.CELL_TYPE_BLANK:
                return null;
            case Cell.CELL_TYPE_BOOLEAN:
                return cell.getBooleanCellValue();
            case Cell.CELL_TYPE_ERROR:
                return cell.getErrorCellValue();
            case Cell.CELL_TYPE_FORMULA:
                try {
                    if (HSSFDateUtil.isCellDateFormatted(cell)) {
                        return cell.getDateCellValue();
                    } else {
                        return cell.getNumericCellValue();
                    }
                } catch (IllegalStateException e) {
                    return cell.getRichStringCellValue();
                }
            case Cell.CELL_TYPE_NUMERIC:
                if (DateUtil.isCellDateFormatted(cell)) {
                    return cell.getDateCellValue();
                } else {
                    return cell.getNumericCellValue();
                }
            case Cell.CELL_TYPE_STRING:
                return cell.getStringCellValue();
            default:
                return null;
        }
    }