python登陆asp网站页面的实现代码

使用python/' target='_blank'>python来登录asp网站和登录其他网站差不多,只是因为asp页面在每次请求的时候都要带上viewstate,因此使用Python来登录的话就多了一个步骤,获得这个页面的viewstate之后带上这个和你要post或get到该页面的请求数据就好了,下面这段程序是登录一个asp系统,然后搜索某些数据并将这些数据保存下来.

#coding=utf-8 import urllib2 from bs4 import BeautifulSoup import urllib import cookielib import re import httplib import time   loginUrl="登录地址"headers={"User-Agent":"Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/37.0.2062.120 Safari/537.36"} studentCookie = cookielib.CookieJar()  pageOpener = urllib2.build_opener(urllib2.HTTPCookieProcessor(studentCookie)) loginPageRequest = urllib2.Request(loginUrl)  loginPageHTML = pageOpener.open(loginPageRequest).read() """ s=requests.Session() s.headers.update(headers) r=s.get(loginUrl) """ print loginPageHTML soup=BeautifulSoup(loginPageHTML)  __VIEWSTATE=soup.find(id="__VIEWSTATE")['value'] __EVENTVALIDATION=soup.find(id="__EVENTVALIDATION")['value']  print __VIEWSTATE print __EVENTVALIDATION  login_data={    ' __EVENTTARGET':'', '__EVENTARGUMENT':'', '__LASTFOCUS':'', '__VIEWSTATE':__VIEWSTATE, '__EVENTVALIDATION':__EVENTVALIDATION, 'ClienScreentHeight':'768', 'TextBoxUserID':'username', 'TextBoxPWD':'password', 'drpLanguage':'zh-CN', 'ButtonConfirm.x':'45', 'ButtonConfirm.y':'64'   } loginHeader = {                       'User-Agent':'sssssssssssssssssssssss'           } loginData=urllib.urlencode(login_data) loginRequest = urllib2.Request(loginUrl , loginData , headers) loginResponse = pageOpener.open(loginRequest)  print loginResponse  theurl='登录后搜索页面地址' mainPageRequest = urllib2.Request(theurl)  mainPageHTML = pageOpener.open(mainPageRequest).read()  soup=BeautifulSoup(mainPageHTML)  __VIEWSTATE=soup.find(id="__VIEWSTATE")['value'] #__EVENTVALIDATION=soup.find(id="__EVENTVALIDATION")['value'] print __VIEWSTATE #print __EVENTVALIDATION searchdata={       '__VIEWSTATE':__VIEWSTATE,       '__EVENTVALIDATION':'',       'txtCopNO':'', 'txtCAR_NO_S':'', 'drpStatus':'', 'txtHiddenOrOnline':'none', 'txtAuto_id':'', 'drpType':'', 'drpBaseType':'', 'ddlIsStatus':0, 'txtICCard':'', 'txtBILL_NO':'', 'txtGDateTime1':'', 'txtGDateTime2':'', 'drpFromKA':'', 'drpToKA':'', 'btnSearch':'%E6%9F%A5+%E8%AF%A2%28F%29'}  data2=urllib.urlencode(searchdata)      searchData=urllib.urlencode(searchdata) searcgRequest=urllib2.Request(theurl , searchData , headers) searchResponse=pageOpener.open(searcgRequest)  print loginResponse print searchResponse  searchHtml=searchResponse.read()   filename= r'C:\Users\Dell\Desktop\getlogin\file'+time.strftime('%d%H%M',time.localtime(time.time()))+'.html' file=open(filename,'w') file.write(searchHtml) file.close()  print 'end' #raw_input()

原文：python登陆asp网站页面