python爬虫入门笔记--post百度翻译

import urllib.request import urllib.parse #创建url #地址一定要写对 url = 'http://fanyi.youdao.com/translate_o?smartresult=dict&smartresult=rule ' form_data = { 'action': 'FY_BY_REALTlME', 'bv': '316dd52438d41a1d675c1d848edf4877', 'client' :'fanyideskweb', 'doctype': 'json', 'from' :'AUTO', 'i': 'baby', 'keyfrom' :'fanyi.web', 'salt' :'15583529043199', 'sign': '50854f3e3b8180d97371281ac0f7f851',#一个单词对应一个sign和ts 'smartresult' :'dict', 'to' :'AUTO', 'ts' :'1558352904319', 'version': '2.1', } headers = { 'Host': 'fanyi.youdao.com', 'Connection': 'keep-alive', 'Content-Length':'237', 'Accept': 'application/json, text/javascript, */*; q=0.01', 'Origin': 'http://fanyi.youdao.com', 'X-Requested-With':'XMLHttpRequest', 'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.131 Safari/537.36', 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8', 'Referer': 'http://fanyi.youdao.com/', # 'Accept-Encoding': 'gzip, deflate', 'Accept-Language': 'zh-CN,zh;q=0.9', 'Cookie': 'OUTFOX_SEARCH_USER_ID=-181098280@10.169.0.84; JSESSIONID=aaaKiWEaDPtbXcudjevRw; OUTFOX_SEARCH_USER_ID_NCOO=2076851833.794606; ___rl__test__cookies=1558352904316', } #构建请求对象 request=urllib.request.Request(url=url,headers=headers) #处理表单数据 form_data=urllib.parse.urlencode(form_data).encode() #发送请求 response = urllib.request.urlopen(request,data=form_data) print(response.read().decode())

输出：{"translateResult":[[{"tgt":"婴儿","src":"baby"}]],"errorCode":0,"type":"en2zh-CHS","smartResult":{"entries":["","n. 婴儿，婴孩；孩子气的人 ","adj. 婴儿的；幼小的 ","vt. 纵容，娇纵；把……当婴儿般对待 "],"type":1}}

最后通过json解析得出：

{
    "translateResult":[
        [
            {
                "tgt":"婴儿",
                "src":"baby"
            }
        ]
    ],
    "errorCode":0,
    "type":"en2zh-CHS",
    "smartResult":{
        "entries":[
            "",
            "n. 婴儿，婴孩；孩子气的人 ",
            "adj. 婴儿的；幼小的 ",
            "vt. 纵容，娇纵；把……当婴儿般对待 "
        ],
        "type":1
    }
}