enctype="multipart/form-data" 上传方式读取FILE之外的值

private String uploadPic(HttpServletRequest request, HttpServletResponse response) throws Exception  {
		DiskFileItemFactory fac = new DiskFileItemFactory();
        ServletFileUpload upload2 = new ServletFileUpload(fac);
        upload2.setHeaderEncoding("utf-8");
        List fileList = null;
        fileList = upload2.parseRequest(request); 
        String number = ((FileItem)fileList.get(2)).getString();   //获取directory参数

确认参数固定后可以通过这种方式取到参数值后重新命名拿取

文档参考地址：https://www.cnblogs.com/kenkofox/archive/2011/03/26/1996258.html