POST 请求这样构建对不对？为啥总不成功

2016-03-12 18:35:09 +08:00
 dsp2138
import requests
import json

url='http://www.spprec.com/sczw/jyfwpt/005001/005001001/MoreInfo.aspx?CategoryNum=005001001'
s = requests.session()

postdata={'__EVENTTARGET': 'MoreInfoList1$Pager', '__EVENTARGUMENT': '3', '__VIEWSTATE': 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', '__CSRFTOKEN': '/wEFJGJlODIyZDM0LTJmODgtNGQwMS1hNGQxLTJhMzdiZTViZThiMg=='}

headers={'Accept-Encoding': 'gzip, deflate', 'Referer': 'http://www.spprec.com/sczw/jyfwpt/005001/005001001/MoreInfo.aspx?CategoryNum=005001001', 'Accept-Language': 'zh-CN,zh;q=0.8', 'Content-Type': 'application/x-www-form-urlencoded', 'Origin': 'http://www.spprec.com', 'Connection': 'keep-alive', 'Host': 'www.spprec.com', 'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/45.0.2454.101 Safari/537.36'}
r=requests.get(url)

resp = s.post(url,headers=headers,cookies=r.cookies)
5510 次点击
所在节点    Python
49 条回复
dsp2138
2016-03-13 00:37:08 +08:00
@mhycy post 中__VIEWSTATE 和__CSRFTOKEN 不用管吗?后台没有对这里个 input 进行验证？

我提交的过程基本和你一致，但总是获取到的都是第一页

谢谢，在仔细看看你的源码
dsp2138
2016-03-13 00:37:54 +08:00
@bdbai 谢谢
mhycy
2016-03-13 00:43:14 +08:00
@bdbai 看上去这个 POST 像是页面验证的一部分。。
@dsp2138 生成的 POST_DATA 就是这两个参数的数据，用正则表达式提取出来的。
仔细看看代码吧，我这个已经写得比较直白了。
bdbai
2016-03-13 00:48:53 +08:00
@mhycy 嗯有 CSRF 处理。 ViewState 是给服务器还原"窗体"的，不传好像也没问题。
dsp2138
2016-03-13 00:50:58 +08:00
@bdbai @mhycy

我也成功了！
发现自己还是对 requests 模块中的 session 不理解！！
发送的 cookies 有问题！

@bdbai 这类的网站国内省级站又近十家都是同一家公司做的！因此界面报告导航分页的代码都是一致！

-------------------------------
我自己的代码

----------------
import requests
import json
from bs4 import BeautifulSoup

url='http://www.spprec.com/sczw/jyfwpt/005001/005001001/MoreInfo.aspx?CategoryNum=005001001'
s = requests.session()
s.headers.update({ 'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/48.0.2564.116 Safari/537.36' })
r=s.get(url)
soup=BeautifulSoup(r.text,'html5lib')
__CSRFTOKEN=soup.find('input',id='__CSRFTOKEN').attrs['value']
__VIEWSTATE=soup.find('input',id='__VIEWSTATE').attrs['value']
__EVENTTARGET='MoreInfoList1$Pager'
__EVENTARGUMENT=4
postdata={'__EVENTTARGET':__EVENTTARGET,'__EVENTARGUMENT':__EVENTARGUMENT,'__CSRFTOKEN':__CSRFTOKEN,'__VIEWSTATE':__VIEWSTATE}
resp=s.post(url,postdata)
bdbai
2016-03-13 00:55:49 +08:00
@dsp2138 Session 会帮你处理好 Cookie 的问题。
HanSonJ
2016-03-13 01:07:49 +08:00
@Comdex 哈哈我看到这么长一串也是第一时间想起方正
dsp2138
2016-03-13 09:52:50 +08:00
谢谢各位老师的及时回复
shyling
2016-03-13 09:56:31 +08:00
viewstate 这么长是很正常的

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