django 上传和下载文件

Posted 2020-12-22 sunzhiqi

##上传文件
#setting配置

UPLOAD_ROOT = os.path.join(BASE_DIR,‘upload‘)

 

 

order_number = lambda : int(round(time.time()* 1000*1000)) ##避免重复文件

if fp.multiple_chunks():    # 判断上传文件大于2.5MB的大文件

    file_yield = fp.chunks()    # 迭代写入文件

    with open(path,‘wb‘) as f:

          for buf in file_yield:

               f.write(buf)

else:

    with open(path,‘wb‘) as f:

          f.write(fp.read())

##文件下载
class Upload_file(APIView):
    def get(self,request):
        id =request.GET.get(‘id‘)
        query = Question.objects.filter(id = id).first()
        filename = query.accessory
        with open (filename,"rb") as file_object:
            response = HttpResponse(file_object)
            response[‘Content-Type‘] = ‘application/octet-stream‘ #设置头信息，告诉浏览器这是个文件

            filename = ‘attachment; filename=%s‘%filename.split("\")[6]
            #设置文件名的中文编码方式
            response[‘Content-Disposition‘] = filename.encode(‘utf-8‘, ‘ISO-8859-1‘)
            

        return response

　　前端直接<a :href="‘http://127.0.0.1:8000/download_excel/?id=‘+ fileId">下载</a>