需求：對(duì)方提供處理文件的接口，本地將待處理文件壓縮后，通過(guò)http post multipart方式上傳，等待處理完成后從相應(yīng)連接下載結(jié)果

代碼：

import osimport timeimport zipfileimport requestsfrom requests_toolbelt.multipart.encoder import MultipartEncoder class Func4Fuxi(object): def __init__(self): self.remote_result = 0 # 壓縮文件 def zip_dir(self, dirname, zipfilename): filelist = [] if os.path.isfile(dirname): filelist.append(dirname) else: for root, dirs, files in os.walk(dirname):for name in files: filelist.append(os.path.join(root, name)) zf = zipfile.ZipFile(zipfilename, mode='w', compression=zipfile.zlib.DEFLATED, allowZip64=True) for tar in filelist:arcname = tar[len(dirname):]zf.write(tar, arcname) zf.close() # 解壓文件 def unzip_file(self, zipfilename, unziptodir): if not os.path.exists(unziptodir): os.mkdir(unziptodir) zfobj = zipfile.ZipFile(zipfilename) for name in zfobj.namelist(): name = name.replace(’’, ’/’) if name.endswith(’/’):os.mkdir(os.path.join(unziptodir, name)) else:ext_filename = os.path.join(unziptodir, name)ext_dir = os.path.dirname(ext_filename)if not os.path.exists(ext_dir): os.mkdir(ext_dir)outfile = open(ext_filename, ’wb’)outfile.write(zfobj.read(name))outfile.close() # 下載 def download_result(self, filename): filename.replace(’’, ’/’) file = filename.split(’/’)[-1] URL = ’--------------’ re = requests.get(URL+’?name=’+file, stream=True) self.remote_result = re.status_code if self.remote_result == 200: print('find result,try to download') f = open('download_'+file, 'wb') for chunk in re.iter_content(chunk_size=512):if chunk: f.write(chunk) print('download result success') return self.remote_result # 上傳 def upload_zip(self, filename): self.remote_result = 0 filename.replace(’’, ’/’) file = filename.split(’/’)[-1] file_tup = (file, open(filename, ’rb’), ’application/zip’) URL = ’-----------------’ #fields屬性根據(jù)對(duì)方接口說(shuō)明設(shè)置 m = MultipartEncoder( fields={’name’: file, ’zipfile’: file_tup} )re = requests.post(URL, data=m, headers={’Content-Type’: m.content_type}) self.remote_result = re.status_code if self.remote_result == 200: print('upload success') else: print('upload failed') return self.remote_result

補(bǔ)充知識(shí)：Python模擬瀏覽器上傳文件腳本（Multipart/form-data格式）

http協(xié)議本身的原始方法不支持multipart/form-data請(qǐng)求，這個(gè)請(qǐng)求由原始方法演變而來(lái)的。

multipart/form-data的基礎(chǔ)方法是post，也就是說(shuō)是由post方法來(lái)組合實(shí)現(xiàn)的，與post方法的不同之處：請(qǐng)求頭，請(qǐng)求體。

multipart/form-data的請(qǐng)求頭必須包含一個(gè)特殊的頭信息：

Content-Type，且其值也必須規(guī)定為multipart/form-data，同時(shí)還需要規(guī)定一個(gè)內(nèi)容分割符用于分割請(qǐng)求體中的多個(gè)post的內(nèi)容，如文件內(nèi)容和文本內(nèi)容自然需要分割開(kāi)來(lái)，不然接收方就無(wú)法正常解析和還原這個(gè)文件了。

具體的頭信息如下：

Content-Type: multipart/form-data; boundary=${bound}

實(shí)例：

import os, random, sys, requestsfrom requests_toolbelt.multipart.encoder import MultipartEncoder url = ’http://127.0.0.1/sendmsg’argvstr = sys.argv[1:]argv_dict = {}for argv in argvstr : argv = str(argv).replace('rn' , '') DICT = eval(argv) argv_dict.update(DICT) headers = { ’User-Agent’: ’Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:50.0) Gecko/20100101 Firefox/50.0’, ’Referer’: url } multipart_encoder = MultipartEncoder( fields={ ’username’: argv_dict[’username’], ’pwd’: argv_dict[’pwd’], ’type’: ’txt’, ’friendfield’: argv_dict[’friendfield’], ’friend’: argv_dict[’friend’], ’content’: argv_dict[’content’], ’file’: (os.path.basename(argv_dict[’file’]) , open(argv_dict[’file’], ’rb’), ’application/octet-stream’) #file為路徑 }, boundary=’-----------------------------’ + str(random.randint(1e28, 1e29 - 1)) ) headers[’Content-Type’] = multipart_encoder.content_type#請(qǐng)求頭必須包含一個(gè)特殊的頭信息，類(lèi)似于Content-Type: multipart/form-data; boundary=${bound} r = requests.post(url, data=multipart_encoder, headers=headers)print(r.text)#注意，不要設(shè)置cookies等其他參數(shù)，否則會(huì)報(bào)錯(cuò) # 例子/usr/local/python36/bin/python3 /opt/lykchat/test_upload.py '{’username’:’lykchat’,’pwd’:’123456’,’type’:’img’,’friendfield’:’1’,’friend’:’xxxx’,’content’:’恭喜發(fā)財(cái)’,’file’:’/root/b.jpg’}'#等同于curl -F 'file=@/root/a' ’http://127.0.0.1/sendmsg?username=lykchat&pwd=123456&type=img&friendfield=1&friend=xxxx&content=恭喜發(fā)財(cái)’

以上這篇python MultipartEncoder傳輸zip文件實(shí)例就是小編分享給大家的全部?jī)?nèi)容了，希望能給大家一個(gè)參考，也希望大家多多支持好吧啦網(wǎng)。