java 2007excel导入

def ufile = FileUploadUtil.upload(request, "batchfile")//取得文件
String fileName = ufile.name;//取得文件名称
String extension = fileName.lastIndexOf(".")==-1?"":fileName.substring(fileName.lastIndexOf(".")+1);//截取文件类型
if("xls".equals(extension)){
wb= new HSSFWorkbook(new FileInputStream(ufile.file));
   }else if("xlsx".equals(extension)){
   wb = new XSSFWorkbook(new FileInputStream(ufile.file));//07方法
   }else{
throw new IOException("不支持的文件类型");
   }
XSSFSheet sheet = wb.getSheetAt(0);
int rows = sheet.getPhysicalNumberOfRows()
for (int i = 1; i < rows; i++){
XSSFRow cell = sheet.getRow(i)
String str=wipenull(cell.getCell(0).toString())//取得String类型
if (DateUtil.isCellDateFormatted(cell.getCell(3))) {
def repDate=HSSFDateUtil.getJavaDate(cell.getCell(3).getNumericCellValue());
}//取得日期模式

}