python上传时包含boundary时的解决方法

  img_url = []
  upload_pic_url = "http://admin.mdt.oujingroup.cn/uploader/img"

  headers = {

   'X-Requested-With': 'XMLHttpRequest',
   }

  img_file = open(name, 'rb')
  multipart_encoder = MultipartEncoder(
   fields={
    'file': ('test.jpg', img_file, "image/jpeg"),
   },
   boundary='----WebKitFormBoundaryJ2aGzfsg35YqeT7X'
  )

  headers['Content-Type'] = multipart_encoder.content_type
  # 请求头必须包含一个特殊的头信息，类似于Content-Type: multipart/form-data; boundary=${bound}
  try:
   r = requests.post(upload_pic_url, data=multipart_encoder, headers=headers)
   print(name)
   # print(r.text)
   temp = json.loads(r.text)
   t = temp['data']['absolute_path']
   # return t
   print(t)
   return img_url.append(t)
  except HTTPError as e:
   print(e)

import os, random, sys, requests
from 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("\r\n" , "")
  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为路径
    },
    boundary='-----------------------------' + str(random.randint(1e28, 1e29 - 1))
  )
 
headers['Content-Type'] = multipart_encoder.content_type
#请求头必须包含一个特殊的头信息，类似于Content-Type: multipart/form-data; boundary=${bound}
 
r = requests.post(url, data=multipart_encoder, headers=headers)
print(r.text)
#注意，不要设置cookies等其他参数，否则会报错
 
# 例子/usr/local/python36/bin/python3 /opt/lykchat/test_upload.py "{'username':'lykchat','pwd':'123456','type':'img','friendfield':'1','friend':'xxxx','content':'恭喜发财','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=恭喜发财'