2019-06-27 23:51:51 阅读数 407 收藏 更多
分类专栏： python爬虫
前言
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作者： Python新手学习之家
用python实现的抓取腾讯视频所有电影的爬虫
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# -*- coding: utf-8 -*-
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import re
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import urllib2
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from bs4 import BeautifulSoup
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import string, time
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import pymongo
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NUM = 0 #全局变量,电影数量
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m_type = u‘‘ #全局变量,电影类型
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m_site = u‘qq‘ #全局变量,电影网站
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#根据指定的URL获取网页内容
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def gethtml(url):
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req = urllib2.Request(url)
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response = urllib2.urlopen(req)
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html = response.read()
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return html
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‘‘‘
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‘‘‘
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#从电影分类列表页面获取电影分类
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def gettags(html):
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global m_type
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soup = BeautifulSoup(html) #过滤出分类内容
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#print soup
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#<ul class="clearfix _group" gname="mi_type" gtype="1">
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tags_all = soup.find_all(‘ul‘, {‘class‘ : ‘clearfix _group‘ , ‘gname‘ : ‘mi_type‘})
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#print len(tags_all), tags_all
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#print str(tags_all[1]).replace(‘\n‘, ‘‘)
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#<a _hot="tag.sub" class="_gtag _hotkey" href="http://v.qq.com/list/1_0_-1_-1_1_0_0_20_0_-1_0.html"title="动作" tvalue="0">动作</a>
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re_tags = r‘<a _hot=\"tag\.sub\" class=\"_gtag _hotkey\" href=\"(.+?)\" title=\"(.+?)\" tvalue=\"(.+?)\">.+?</a>‘
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p = re.compile(re_tags, re.DOTALL)
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tags = p.findall(str(tags_all[0]))
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if tags:
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tags_url = {}
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#print tags
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for tag in tags:
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tag_url = tag[0].decode(‘utf-8‘)
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#print tag_url
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m_type = tag[1].decode(‘utf-8‘)
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tags_url[m_type] = tag_url
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else:
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print "Not Find"
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return tags_url
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#获取每个分类的页数
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def get_pages(tag_url):
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tag_html = gethtml(tag_url)
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#div class="paginator
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soup = BeautifulSoup(tag_html) #过滤出标记页面的html
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#print soup
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#<div class="mod_pagenav" id="pager">
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div_page = soup.find_all(‘div‘, {‘class‘ : ‘mod_pagenav‘, ‘id‘ : ‘pager‘})
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#print div_page #len(div_page), div_page[0]
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#<a class="c_txt6" href="http://v.qq.com/list/1_2_-1_-1_1_0_24_20_0_-1_0.html" title="25"><span>25</span></a>
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re_pages = r‘<a class=.+?><span>(.+?)</span></a>‘
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p = re.compile(re_pages, re.DOTALL)
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pages = p.findall(str(div_page[0]))
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#print pages
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if len(pages) > 1:
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return pages[-2]
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else:
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return 1
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def getmovielist(html):
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soup = BeautifulSoup(html)
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#<ul class="mod_list_pic_130">
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divs = soup.find_all(‘ul‘, {‘class‘ : ‘mod_list_pic_130‘})
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#print divs
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for div_html in divs:
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div_html = str(div_html).replace(‘\n‘, ‘‘)
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#print div_html
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getmovie(div_html)
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def getmovie(html):
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global NUM
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global m_type
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global m_site
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re_movie = r‘<li><a class=\"mod_poster_130\" href=\"(.+?)\" target=\"_blank\" title=\"(.+?)\"><img.+?</li>‘
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p = re.compile(re_movie, re.DOTALL)
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movies = p.findall(html)
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if movies:
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conn = pymongo.Connection(‘localhost‘, 27017)
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movie_db = conn.dianying
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playlinks = movie_db.playlinks
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#print movies
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for movie in movies:
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#print movie
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NUM += 1
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print "%s : %d" % ("=" * 70, NUM)
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values = dict(
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movie_title = movie[1],
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movie_url = movie[0],
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movie_site = m_site,
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movie_type = m_type
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)
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print values
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playlinks.insert(values)
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print "_" * 70
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NUM += 1
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print "%s : %d" % ("=" * 70, NUM)
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#else:
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# print "Not Find"
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def getmovieinfo(url):
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html = gethtml(url)
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soup = BeautifulSoup(html)
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#pack pack_album album_cover
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divs = soup.find_all(‘div‘, {‘class‘ : ‘pack pack_album album_cover‘})
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#print divs[0]
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#<a href="http://www.tudou.com/albumplay/9NyofXc_lHI/32JqhiKJykI.html" target="new" title="《血滴子》独家纪录片" wl="1"> </a>
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re_info = r‘<a href=\"(.+?)\" target=\"new\" title=\"(.+?)\" wl=\".+?\"> </a>‘
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p_info = re.compile(re_info, re.DOTALL)
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m_info = p_info.findall(str(divs[0]))
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if m_info:
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return m_info
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else:
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print "Not find movie info"
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return m_info
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def insertdb(movieinfo):
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global conn
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movie_db = conn.dianying_at
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movies = movie_db.movies
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movies.insert(movieinfo)
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if __name__ == "__main__":
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global conn
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tags_url = "http://v.qq.com/list/1_-1_-1_-1_1_0_0_20_0_-1_0.html"
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#print tags_url
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tags_html = gethtml(tags_url)
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#print tags_html
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tag_urls = gettags(tags_html)
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#print tag_urls
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for url in tag_urls.items():
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print str(url[1]).encode(‘utf-8‘) #,url[0]
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maxpage = int(get_pages(str(url[1]).encode(‘utf-8‘)))
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print maxpage
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for x in range(0, maxpage):
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#http://v.qq.com/list/1_0_-1_-1_1_0_0_20_0_-1_0.html
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m_url = str(url[1]).replace(‘0_20_0_-1_0.html‘, ‘‘)
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movie_url = "%s%d_20_0_-1_0.html" % (m_url, x)
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print movie_url
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movie_html = gethtml(movie_url.encode(‘utf-8‘))
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#print movie_html
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getmovielist(movie_html)
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time.sleep(0.1)
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原文地址：https://www.cnblogs.com/chengxuyuanaa/p/12005765.html