老师，批量上传问题

DiskFileItemFactory diskFileItemFactory = new DiskFileItemFactory();
FileUpload fileUpload = new FileUpload(diskFileItemFactory);
List<FileItem> list = fileUpload.parseRequest(request);
List<Book> books = new ArrayList<>();
Book book = new Book();
for(FileItem fileItem : list){
        if(fileItem.isFormField()){
            if(fileItem.getFieldName().equals("name")){
                book.setName(fileItem.getString("UTF-8"));
            }
            if(fileItem.getFieldName().equals("categoryId")){
                book.setCategoryId(Integer.parseInt(fileItem.getString()));
            }
            if(fileItem.getFieldName().equals("level")){
                book.setLevel(Integer.parseInt(fileItem.getString()));
            }
            if(fileItem.getFieldName().equals("price")){
                book.setPrice(Integer.parseInt(fileItem.getString()));
            }
        }
        else {
            String path = request.getServletContext().getRealPath("/img");
            String filename = System.currentTimeMillis()+fileItem.getName().substring(fileItem.getName().lastIndexOf("."));
            fileItem.write(new File(path+"/"+filename));
            book.setImgPath(filename);
            book.setCreateTime(new Date());
            book.setUpdateTime(new Date());
            books.add(book);
            book = new Book();
        }
}

之前都是只有一组数据的

我的代码是这样的，如果是多组数据，fileitem是按顺序遍历出来的吗，这样做可以吗

咱们在第二阶段不是做过那个菜品的作业吗，用的就是FileUpload，或者你去看一下老师的登陆注册案例，就是通过FileUpload上传的。