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python使用cookielib库示例分享

Jun 16, 2016 am 08:45 AM

该模块主要功能是提供可存储cookie的对象。使用此模块捕获cookie并在后续连接请求时重新发送,还可以用来处理包含cookie数据的文件。

这个模块主要提供了这几个对象,CookieJar,FileCookieJar,MozillaCookieJar,LWPCookieJar。

1. CookieJar

CookieJar对象存储在内存中。

复制代码 代码如下:

>>> import urllib2
>>> import cookielib
>>> cookie=cookielib.CookieJar()
>>> handler=urllib2.HTTPCookieProcessor(cookie)
>>> opener=urllib2.build_opener(handler)
>>> opener.open('http://www.google.com.hk')

访问google的cookie已经被捕捉了,来看下是怎样的:

复制代码 代码如下:

>>> print cookie
, ]>

看来是Cookie实例的集合,Cookie实例有name,value,path,expires等属性:

复制代码 代码如下:

>>> for ck in cookie:
...     print ck.name,':',ck.value
...
NID : 67=B6YQoEIEjcqDj-adada_WmNYl_JvADsDEDchFTMtAgERTgRjK452ko6gr9G0Q5p9h1vlmHpCR56XCrWwg1pv6iqhZnaVlnwoeM-Ln7kIUWi92l-X2fvUqgwDnN3qowDW
PREF : ID=7ae0fa51234ce2b1:FF=0:NW=1:TM=1391219446:LM=1391219446:S=cFiZ5X8ts9NY3cmk

2.将cookie捕捉到文件

FileCookieJar(filename)

创建FileCookieJar实例,检索cookie信息并将信息存储到文件中,filename是文件名。

MozillaCookieJar(filename)

创建与Mozilla cookies.txt文件兼容的FileCookieJar实例。

LWPCookieJar(filename)

创建与libwww-perl Set-Cookie3文件兼容的FileCookieJar实例。

代码:

复制代码 代码如下:

 import urllib2
import cookielib
def HandleCookie():
#handle cookie whit file
     filename='FileCookieJar.txt'
     url='http://www.google.com.hk'
     FileCookieJar=cookielib.LWPCookieJar(filename)
     FileCookeJar.save()
     opener =urllib2.build_opener(urllib2.HTTPCookieProcessor(FileCookieJar))
     opener.open(url)
     FileCookieJar.save()
     print open(filename).read()

     #read cookie from file
     readfilename = "readFileCookieJar.txt"
     MozillaCookieJarFile =cookielib.MozillaCookieJar(readfilename)
     print MozillaCookieJarFile       
     MozillaCookieJarFile.load(cookieFilenameMozilla)
     print MozillaCookieJarFile
 if __name__=="__main__":
     HandleCookie()

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