我正在从浏览器上传一个excel文件.我正在使用POI jar.但是得到错误
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在我使用的两个jsp文件下面：
JSP 1：

@H_403_6@<form action="Upload.jsp" enctype="MULTIPART/FORM-DATA" method=post > <input type="file" name="filename" /> <input type="submit" value="Upload" /> </form>

JSP 2：Upload.jsp

@H_403_6@try{ InputStream file = request.getInputStream(); POIFSFileSystem myFileSystem = new POIFSFileSystem(file); HSSFWorkbook myWorkBook = new HSSFWorkbook(myFileSystem); HSSFSheet mySheet = myWorkBook.getSheetAt(0); Iterator rowIter = mySheet.rowIterator(); rowIter.next(); while (rowIter.hasNext()) { HSSFRow myRow = (HSSFRow) rowIter.next(); Iterator cellIter = myRow.cellIterator(); cellIter.next(); System.out.println(((HSSFCell)cellIter.next()).toString()); } }catch(Exception ex){ System.out.println(ex.getMessage()); }

但是在POIFSFileSystem myFileSystem =新的POIFSFileSystem(文件)中获取错误;

如何解决这个问题？