10-python中的requests应用

最新推荐文章于 2024-04-18 11:22:38 发布

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本文介绍如何利用Python的Requests库配合特定的代理、头部信息及表单数据来发送POST请求实现有道在线翻译的功能，并展示了如何解析响应结果及处理Cookies。

使用request方便：

#_*_ coding: utf-8 _*_
'''
Created on 2018年7月14日

@author: sss
'''

import requests
import json

#根据协议类型选择不同的代理
proxies = {
        "http" : "118.190.95.43:9001",
        "https": "49.79.156.109:8000",
    }

headers = {
        "Connection" : "keep-alive",
        "Accept" : "application/json, text/javascript, */*; q=0.01",
        "X-Requested-With" : "XMLHttpRequest",
        "User-Agent" : "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36",
        "Content-Type" : "application/x-www-form-urlencoded; charset=UTF-8",
        "Referer" : "http://fanyi.youdao.com/"
    }

formdata = {
        "i" :'hello',
        "from " :"AUTO",
        "to" :"AUTO",
        "smartresult" :"dict",
        "client" :"fanyideskweb",
        "salt" :"1531403738742",  #这个应该是个时间戳
        "sign" :"ffa2b29fe52953208226d97a174bcea7", #应该是根据时间戳+你要翻译的内容加密后生成的验证字段
        "doctype" :"json",
        "version" :"2.1",
        "keyfrom" :"fanyi.web",
        "action" :"FY_BY_REALTIME",
        "typoResult" :"false"
    }

# url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule&smartresult=ugc&sessionFrom=null"
url = "http://fanyi.youdao.com/translate?smartresult=dict&smartresult=rule"  #http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule要把_o去掉

response = requests.post(url, data = formdata, headers = headers, proxies = proxies)

print(response.text.encode(encoding='utf_8') )

#如果是json文件可以直接显示
print(response.json())

html = response.text
target = json.loads(html)
print("翻译结果：%s"%(target['translateResult'][0][0]['tgt'])) #读出结果

#返回cookiejar对象：
cookiejar = response.cookies

#将cookieJar转为字典：
cookiedict = requests.utils.dict_from_cookiejar(cookiejar)

print(cookiejar)

print(cookiedict)