最近剛學python,遇到上傳下載文件功能需求，記錄下！

django web項目，前端上傳控件用的是uploadify。

文件上傳 - 后臺view 的 Python代碼如下：

@csrf_exempt@require_http_methods(["POST"])def uploadFiles(request): try:  user = request.session.get('user')  allFimeNames = ""  #獲取所有上傳文件  files = request.FILES.getlist("file")  for file in files:   # 獲取文件名 解析文件后綴 獲取新文件名   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)   #寫入服務器   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 多個用逗號隔開   allFimeNames = os.path.join(filePath,filename) except Exception:  return JsonResponse(data={'error': "系統異常"}, status=400) return JsonResponse(data={'filePath': allFimeNames})

request.FILES.getlist("file")此處的file 是前端頁面的文件提交的名稱，可以在uploadify中配置。

文件下載：

@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內容，希望對大家的學習有所幫助，也希望大家多多支持武林站長站。