Python 模拟POST发包，并且保存cookie，可用于需要登录的操作

cookie_post.py

#coding=utf8

import cookielib
import urllib2, urllib
import time
import re
import traceback
import time


cj = cookielib.CookieJar()
opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj))
#opener = urllib2.build_opener(urllib2.HTTPCookieProcessor(cj), urllib2.ProxyHandler({'http':"10.239.120.37:911"}))
opener.addheaders = [
                    ('User-agent', 'Mozilla/5.0 (Windows NT 5.2) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1'),
                     ]

def get_page(url, data=None):
    resp = None
    n = 0
    while n < 3:
        n = n + 1
        try:
            resp = opener.open(url, data, timeout=5)
            page = resp.read()
            return page
        except:
            #traceback.print_exc()
            time.sleep(2)
            print "Try after 2 seconds ..."
            continue
    raise Exception("Get page failed")


url = "http://www.baidu.com/login..."

formData = urllib.urlencode({'username' : "abc",
                             'password' : "123",
                             })
p = get_page(url, formData)
print p

url2 = "http://www.baidu.com/"
p = get_page(url2)
print p