public static void main(String[] args) {
		ExcelHelper helper = new ExcelHelper();
		String excelName = "test.xls";
		
		// excel
		helper.createExcel(excelName);
		// ȡexcel
		helper.readExcel(excelName);
		
		try {
			readFromMySql();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}