苦恼的爬网问题

vbfeng123

请问高手如何爬这网址https://www.17track.net/zh-cn/，给些建议我，用httphelper查不到，苏菲助手都查不到，请问什么原因


Request URL: https://t.17track.net/restapi/track
Request Method: POST
Status Code: 200
Remote Address: 202.104.118.196:443
Referrer Policy: no-referrer-when-downgrade
17server: App
access-control-allow-credentials: true
access-control-allow-headers: Last-Event-ID
access-control-allow-origin: https://t.17track.net
access-control-max-age: 86400
cache-control: private
content-encoding: gzip
content-type: application/json; charset=UTF-8
date: Tue, 20 Nov 2018 08:55:52 GMT
server: nginx
status: 200
vary: Accept-Encoding,Accept-Encoding
:authority: t.17track.net
:method: POST
:path: /restapi/track
:scheme: https
accept: application/json, text/javascript, */*; q=0.01
accept-encoding: gzip, deflate, br
accept-language: zh-CN,zh;q=0.9
content-length: 76
content-type: application/x-www-form-urlencoded; charset=UTF-8
cookie: _yq_bid=G-3A7B5C7795173121; _ga=GA1.2.1738381043.1542158321; __gads=ID=a5924c66d0bc60ec:T=1542158327:S=ALNI_Mb8jzBpo4Y-E4jXeygcES6wmqehag; v5_TranslateLang=zh-CHS; _gid=GA1.2.766463111.1542677997; _gat=1; Last-Event-ID=657572742f3331332f35333233353530333736312f65646968207265746e65632d74786574206c656e6170206e67696c612d6c61636974726576207272652d6b726f7774656e2d67736d2d717991114e818830296cbf6
origin: https://t.17track.net
referer: https://t.17track.net/zh-cn
user-agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3608.4 Safari/537.36
x-requested-with: XMLHttpRequest
{"guid":"afb02ead0f4a4d1cbdb680b9c83dee1a","data":[{"num":"RW142579257CN"}]}:

站长苏飞

要抓到异步的包才行

vbfeng123

怎样抓，有没有例子

站长苏飞

你这个其实就是对的。问题应该是出在组织参数上

站长苏飞

你看里面的参数，应该是有一定的变化规律的。好像还有个过期时间，目测是这样

站长苏飞

都在Cookie中，貌似有参数每次搜索会生成一个，而且有时间限制，需要找找规律

vbfeng123

我刚查完，之后复制cookie，照爬都不行，之前其他网站都可以的，这个就不行，不知道问题在哪里？

vbfeng123

webBrowser，手工进入网站，报不支持浏览器

站长苏飞

当然不行啊，每次会产生新的，而且应该是只能用一次，就是说你必须先执行查询取到Cookie，再去查这个数据。

vbfeng123

是的，我查询一次后拿cookie，再查询，这样不行吗，cookie会每次变？