本文的爬虫教程分为四部:
1.从哪爬 where
2.爬什么 what
3.怎么爬 how
4.爬了之后信息如何保存 save
一、从哪爬
三国演义
二、爬什么
三国演义全文
三、怎么爬
在Chrome页面打开F12,就可以发现文章内容在节点
<div ID="con" >
只要找到这个节点,然后把内容写入到一个HTML文件即可。
content = soup.find("div",{"class": "bookyuanjiao","ID": "con"})
四、爬了之后如何保存
主要就是拿到内容,拼接到一个HTML文件,然后保存下来就可以了。
#!usr/bin/env # -*-Coding:utf-8 -*-import urllib2import osfrom bs4 import BeautifulSoup as BSimport localeimport sysfrom lxml import etreeimport rereload(sys)sys.setdefaultencoding('gbk')sub_folder = os.path.join(os.getcwd(),"sanguoyanyi")if not os.path.exists(sub_folder): os.mkdir(sub_folder)path = sub_folder# customize HTML as head of the articlesinput = open(r'0.HTML','r')head = input.read()domain = 'http://www.shicimingju.com/book/sanguoyanyi.HTML't = domain.find(r'.HTML')new_domain = '/'.join(domain.split("/")[:-2])first_chapter_url = domain[:t] + "/" + str(1) + '.HTML'print first_chapter_url# Get url if chapter Listsreq = urllib2.Request(url=domain)resp = urllib2.urlopen(req)HTML = resp.read()soup = BS(HTML,'lxml')chapter_List = soup.find("div","ID": "mulu"})sel = etree.HTML(str(chapter_List))result = sel.xpath('//li/a/@href')for each_link in result: each_chapter_link = new_domain + "/" + each_link print each_chapter_link req = urllib2.Request(url=each_chapter_link) resp = urllib2.urlopen(req) HTML = resp.read() soup = BS(HTML,'lxml') content = soup.find("div","ID": "con"}) Title = soup.Title.text Title = Title.split(u'_《三国演义》_诗词名句网')[0] HTML = str(content) HTML = head + HTML + "</body></HTML>" filename = path + "\" + Title + ".HTML" print filename # write file output = open(filename,'w') output.write(HTML) output.close()
0.HTML的内容如下
<HTML><head><Meta http-equiv="Content-Type" content="text/HTML; charset=utf-8"></head><body>
总结
以上就是利用Python爬取三国演义的实现方法,希望对大家学习python能有所帮助,如果有疑问大家可以留言交流。
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