最近刚学python,遇到上传下载文件功能需求，记录下！

django web项目，前端上传控件用的是uploadify。

文件上传 - 后台view 的 Python代码如下：

@csrf_exempt@require_http_methods(["POST"])def uploadFiles(request): try: user = request.session.get('user') allFimeNames = "" #获取所有上传文件 files = request.FILES.getlist("file") for file in files: # 获取文件名 解析文件后缀 获取新文件名 oldName = file.name filename = str(int(time.time() * 10))+"."+oldName.split(".")[1] now = datetime.now() filePath = os.path.join("developmentTask",str(user.get("userId"))+"-"+now.strftime('%Y-%m-%d')) dirpath = os.path.join(settings.UPLOADFILES_DIRS , filePath) #写入服务器 if not os.path.exists(dirpath): os.makedirs(dirpath) newFilePath = os.path.join(dirpath, filename) with open(newFilePath, 'wb+') as destination: for chunk in file.chunks(): destination.write(chunk) #返回新文件名 多个用逗号隔开 allFimeNames = os.path.join(filePath,filename) except Exception: return JsonResponse(data={'error': "系统异常"}, status=400) return JsonResponse(data={'filePath': allFimeNames})

request.FILES.getlist("file")此处的file 是前端页面的文件提交的名称，可以在uploadify中配置。

文件下载：

@csrf_exempt@require_http_methods(["GET"])def downloadFile(request): filePath = request.GET.get("filepath") fileName = request.GET.get("filename") file_name = os.path.join(settings.UPLOADFILES_DIRS, filePath) if os.path.exists(file_name): def file_iterator(file_name, chunk_size=512): with open(file_name) as f: while True: c = f.read(chunk_size) if c: yield c else: break response = StreamingHttpResponse(file_iterator(file_name)) response['Content-Type'] = 'application/octet-stream' response['Content-Disposition'] = 'attachment;filename="{0}"'.format(fileName) return response response = StreamingHttpResponse("文件不存在！") response['Content-Type'] = 'application/octet-stream' response['Content-Disposition'] = 'attachment;filename="{0}"'.format("") return response

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。