爬虫--登录网页

#!/usr/bin/env python
# -*- coding: utf-8 -*-
#############################################
# File        : loginMMVOIP.py
# Author      : lucasysfeng
# Revision    : 2014-06-13 14:26:11
# Description : 登录-->获取cookie-->访问任意URL
#############################################
import cookielib
import urllib2
import urllib

### loginURL和postVales通过填写表单页面源码或Fiddler等抓包软件获得
### loginURL是处理登录请求的页面(不是填写表单的页面),
loginURL = ""
postValues = {}

### 存储cookie
cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
urllib2.install_opener(opener)

### 登录验证
try:
    opener.open(loginURL, urllib.urlencode(postValues))
except:
    print "error: open() error"

# 登录后可访问任意URL
print opener.open("").read()