Django实现文件上传、下载

fileDownloads.py

 

# 切片读取文件
def file_iterator(filename,chunk_size=512): with open(filename,'rb') as f: while True: c=f.read(chunk_size) if c: yield c else: break

 

zip_dir.py

import os import zipfile # 如果是文件夹，则压缩文件
def zip_dir(dir_name, zip_file_name): file_list = [] if os.path.isfile(dir_name): file_list.append(dir_name) else: for root, dirs, files in os.walk(dir_name): for name in files: file_list.append(os.path.join(root, name).replace("\\", "/")) zf = zipfile.ZipFile(os.path.join(dir_name,zip_file_name), "w", zipfile.zlib.DEFLATED) for tar in file_list: arc_name = tar[len(dir_name):] zf.write(tar, arc_name) zf.close()

 

 

一、文件上传

    def post(self, request): # 文件上传
        if int(request.data.get("flag", None)) == 3: File = request.FILES.get("file", None) mes = redis_resp.hgetall("staff") mes_username = mes.get("username") main_type = request.data.get("main_type") sub_type = request.data.get("sub_type") if File: dir = os.path.join(os.path.join(os.path.join(FILE_PATH, mes_username), main_type), sub_type).replace( "\\", "/") if not os.path.exists(dir): os.makedirs(dir) destination = open(os.path.join(dir, File.name).replace("\\", "/"), 'wb+') for chunk in File.chunks(): destination.write(chunk) destination.close() resp = vars(RespDatas(1, '200', '')) return Response(resp)

二、文件下载

    def post(self, request): # 文件下载
        if int(request.data.get("flag", None)) == 4: mes = redis_resp.hgetall("staff") mes_username = mes.get("username") print("flag") print(request.data.get("flag", None)) file = request.data.get("file") main_type = request.data.get("main_type") sub_type = request.data.get("sub_type") the_file_path = os.path.join( os.path.join(os.path.join(os.path.join(FILE_PATH, mes_username), main_type), sub_type), file).replace( "\\", "/") response = StreamingHttpResponse(file_iterator(the_file_path)) response['Content-Type'] = 'application/octet-stream' response['Content-Disposition'] = "attachment; filename*=utf-8''{}".format(escape_uri_path(file)) # response['Content-Type'] = 'application/octet-stream'
            # response['Content-Disposition'] = 'attachement;filename="{0}"'.format(file)

            return response

三、文件夹打包下载（zip）

    def post(self, request): #压缩包下载
        if int(request.data.get("flag", None)) == 5: mes = redis_resp.hgetall("staff") mes_username = mes.get("username") the_file_path = os.path.join(os.path.join(os.path.join(FILE_PATH, mes_username))).replace("\\", "/") print(the_file_path) try: #打包文件
                zip_dir(FILE_PATH.replace("\\", "/"), "test.zip") the_file_name=os.path.join(FILE_PATH,"test.zip").replace("\\", "/") response = StreamingHttpResponse(file_iterator(the_file_name)) response['Content-Type'] = 'application/octet-stream' response['Content-Disposition'] = 'attachment;filename="{0}"'.format(escape_uri_path(the_file_name)) return response except: resp = vars(RespDatas(1, '400', '下载失败')) return Response(resp)

参考：https://blog.csdn.net/weixin_30302609/article/details/97728518