获取Excel单元格数据内容为字符串类型的数据

public String getStringCellValue(HSSFCell cell) {
	String strCell = "";
	switch (cell.getCellType()) {
	case HSSFCell.CELL_TYPE_STRING:
		strCell = cell.getStringCellValue().trim();
		break;
	case HSSFCell.CELL_TYPE_NUMERIC:
		
		java.text.NumberFormat nf = NumberFormat.getCurrencyInstance();
		DecimalFormat df = (DecimalFormat) nf;
		df.setDecimalSeparatorAlwaysShown(true);
		df.applyPattern("###############");
		String value = df.format(new Double(cell.getNumericCellValue()));
		
		strCell = String.valueOf(value);
		break;
	case HSSFCell.CELL_TYPE_BOOLEAN:
		strCell = String.valueOf(cell.getBooleanCellValue());
		break;
	case HSSFCell.CELL_TYPE_BLANK:
		strCell = "";
		break;
	default:
		strCell = "";
		break;
	}
	if (strCell.equals("") || strCell == null) {
		return "";
	}
	if (cell == null) {
		return "";
	}
	return strCell;
}