您可以看看：

HSSFDateUtil.isCellDateFormatted()

查看POI可怕的小号preadsheet格式的更多详细信息的API上HSSFDateUtil：

See the POI Horrible Spreadsheet Format API for more details on HSSFDateUtil:

http://poi.apache.org/apidocs/org/apache/poi/hssf/usermodel/HSSFDateUtil.html

这也提供了Excel中返回一些辅助方法 getExcelDate（）和Java日期 getJavaDate（）。你需要有所警惕不同的日期格式，虽然...

That also provides some helper methods for returning Excel getExcelDate() and Java dates getJavaDate(). You need to be somewhat wary of different date formats though...