idea poi 读取Excel文件数据

File file = new File("D:\\Users\\Administrator\\Desktop\\demo.xlsx");
try  {
    FileInputStream stream = new FileInputStream(file);
    XSSFWorkbook workbook = new XSSFWorkbook(stream);
　　//读取sheet页
    XSSFSheet sheet = workbook.getSheetAt(0);
　　//　　第一行是表头，数据在第二行(下标是1)
    for (int i = 1;i<=sheet.getLastRowNum();i++){
        XSSFRow row = sheet.getRow(i);
        String basicTypeCode =  row.getCell(1)==null?null:row.getCell(1).getStringCellValue();
        String code = row.getCell(2)==null?null:row.getCell(2).getStringCellValue();
        int basicType = (int) row.getCell(3).getNumericCellValue();
        String kkName = row.getCell(10)==null?null:row.getCell(10).getStringCellValue();
        String ruName = row.getCell(11)==null?null:row.getCell(11).getStringCellValue();
    }
    stream.close();
}catch (Exception e){
    e.printStackTrace();
}