最近嘗試使用request來發送上傳文件的post請求，網上找了很多直接post文件的例子，借鑒發現這個方法行不通，于是嘗試了另外一種方式：通過第三方包requests_toolbelt講文件轉為數據流來發送請求，嘗試成功。

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第一類，單個文件，包含在消息體

            # -*- coding: utf-8 -*-

import requests
#引入requests_toolbelt包，直接使用數據流來發送上傳文件的post請求
from requests_toolbelt.multipart.encoder import MultipartEncoder

url = "http://host/test/bTutorCircle/uploadFile"

m=MultipartEncoder(fields = {
    "account":"qatest@chaozhi1v1.com",
    "metaTag":"TOPIC_IMAGE",
    'file':('12.jpg',open('C:\\Users\\Desktop\\test_img\\12.jpg', 'rb'),'application/jpg')

})

headers = {
    'Accept-Encoding': "gzip, deflate",
    'Content-Type': m.content_type,
    }

response = requests.request("POST", url, data=m, headers=headers)

print(response.text)
          

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第二類，多個文件，參數復雜組合情況

            # -*- coding: utf-8 -*-

import requests
#引入requests_toolbelt包，直接使用數據流來發送上傳文件的post請求
from requests_toolbelt.multipart.encoder import MultipartEncoder

url = "http://host/test/content/inserOrUpdate?token=11E5F02EC251CCBFDBAF0BEE3B23DF35"

m=MultipartEncoder(fields = {
    "trainContent":str({"title":"tet","introduction":"
            

              test
            
            ","videoLinkType":1,"videoUrl":"","videoDurationM":"2","videoDurationS":0,"videoDuration":120}),
    "ppt":('12.jpg',open('C:\\Users\\Desktop\\test_img\\12.jpg', 'rb'),'application/jpg'),
    'cover':('12.jpg',open('C:\\Users\\Desktop\\test_img\\12.jpg', 'rb'),'application/jpg'),
    'video':('12.jpg',open('C:\\Users\\Desktop\\test_img\\12.jpg', 'rb'),'application/jpg')

})

headers = {
    'Accept-Encoding': "gzip, deflate",
    'Content-Type': m.content_type,
    }

response = requests.request("POST", url, data=m, headers=headers)

print(response.text)
          

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附件文件支持多種文件，比如ppt,xls,jmx等等，把對應字符替換即可。