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python实现提取百度搜索结果的方法


   本文实例讲述了python实现提取百度搜索结果的方法。分享给大家供大家参考。具体实现方法如下:

  ?

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# coding=utf8

import urllib2

import string

import urllib

import re

import random

#设置多个user_agents,防止百度限制IP

user_agents = ['Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20130406 Firefox/23.0', \

'Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0', \

'Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/533+ \

(KHTML, like Gecko) Element Browser 5.0', \

'IBM WebExplorer /v0.94', 'Galaxy/1.0 [en] (Mac OS X 10.5.6; U; en)', \

'Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 6.1; WOW64; Trident/6.0)', \

'Opera/9.80 (Windows NT 6.0) Presto/2.12.388 Version/12.14', \

'Mozilla/5.0 (iPad; CPU OS 6_0 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) \

Version/6.0 Mobile/10A5355d Safari/8536.25', \

'Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) \

Chrome/28.0.1468.0 Safari/537.36', \

'Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.0; Trident/5.0; TheWorld)']

def baidu_search(keyword,pn):

p= {'wd': keyword}

res=urllib2.urlopen(("http://www.baidu.com/s?"+urllib.urlencode(p)+"&pn={0}&cl=3&rn=100").format(pn))

html=res.read()

return html

def getList(regex,text):

arr = []

res = re.findall(regex, text)

if res:

for r in res:

arr.append(r)

return arr

def getMatch(regex,text):

res = re.findall(regex, text)

if res:

return res[0]

return ""

def clearTag(text):

p = re.compile(u'<[^>]+>')

retval = p.sub("",text)

return retval

def geturl(keyword):

for page in range(10):

pn=page*100+1

html = baidu_search(keyword,pn)

content = unicode(html, 'utf-8','ignore')

arrList = getList(u"<table.*?class=\"result\".*?>.*?<\/a>", content)

for item in arrList:

regex = u"<h3.*?class=\"t\".*?><a.*?href=\"(.*?)\".*?>(.*?)<\/a>"

link = getMatch(regex,item)

url = link[0]

#获取标题

#title = clearTag(link[1]).encode('utf8')

try:

domain=urllib2.Request(url)

r=random.randint(0,11)

domain.add_header('User-agent', user_agents[r])

domain.add_header('connection','keep-alive')

response=urllib2.urlopen(domain)

uri=response.geturl()

print uri

except:

continue

if __name__=='__main__':

geturl('python')

  希望本文所述对大家的Python程序设计有所帮助。

www.bkjia.comtruehttp://www.bkjia.com/ASPjc/1002299.htmlTechArticlepython实现提取百度搜索结果的方法 本文实例讲述了python实现提取百度搜索结果的方法。分享给大家供大家参考。具体实现方法如下: ? 1...

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