poi解析Excel文件时有两种格式:
HSSFWorkbook格式用来解析Excel2003(xls)的文件
XSSFWorkbook格式用来解析Excel2007(xlsx)的文件
如果用HSSFWorkbook解析Excel2007(xlsx)时就会报异常:“The supplied data appears to be in the Office 2007+ XML. You are calling the part of POI that deals with OLE2 Office Documents. You need to call a different part of POI to process this data (eg XSSF instead of HSSF)”
因为HSSFWorkbook和XSSFWorkbook都实现了Workbook接口,所以我们可以用Workbook来解析两个版本的Excel。
代码如下:
try{//将文件的输入流转换成WorkbookWorkbook wb = WorkbookFactory.create(numFile.getInputStream());//获得第一个工作表Sheet sheet = wb.getSheetAt(0);//获得第一行Row row = sheet.getRow(0);//获得第一行的第一列Cell cell = row.getCell(0);
}catch (Exception e){e.printStackTrace();
}