python djiango 文件上传

 file = request.FILES.get('file')
        u_folder = request.data.get('folder', 'default')

        str2 = uuid.uuid4().hex
        folder = str2[:2]
        directory_name = datetime.datetime.now().strftime('%Y/%m/' + folder)
        filename = str2[2:10] + '_' + str(random.randint(1000, 9999)) + os.path.splitext(file.name)[-1]
        saved_path = os.path.join('media', u_folder, directory_name)
        absolute_file_path = os.path.join(saved_path, filename)  # file.name为带后缀的文件名
        

        directory = os.path.dirname(absolute_file_path)
        if not os.path.exists(directory):
            os.makedirs(directory)

        with open(absolute_file_path, 'wb+') as destination:
            for chunk in file.chunks():
                destination.write(chunk)
        ra_data = {
            'name': file.name,
            'path': '/' + absolute_file_path,
            'type': file.content_type.lower()
        }