workbook = new XSSFWorkbook(is);
改为
workbook = WorkbookFactory.create(is);
具体细节
http://blog.csdn.net/blueheart20/article/details/45028311
workbook = new XSSFWorkbook(is);
改为
workbook = WorkbookFactory.create(is);
具体细节
http://blog.csdn.net/blueheart20/article/details/45028311