python登陆asp网站页面的实现代码
使用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
importurllib2frombs4importBeautifulSoupimporturllibimportcookielibimportreimporthttplibimporttime
loginUrl="登录地址"
headers={"User-Agent":"Mozilla/5.0(WindowsNT6.1)AppleWebKit/537.36(KHTML,likeGecko)Chrome/37.0.2062.120Safari/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)
"""printloginPageHTML
soup=BeautifulSoup(loginPageHTML)
__VIEWSTATE=soup.find(id="__VIEWSTATE")['value']
__EVENTVALIDATION=soup.find(id="__EVENTVALIDATION")['value']
print__VIEWSTATEprint__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)
printloginResponse
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)
printloginResponseprintsearchResponse
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