Home  >  Article  >  Backend Development  >  Implementation method of crawling the Romance of the Three Kingdoms in Python

Implementation method of crawling the Romance of the Three Kingdoms in Python

高洛峰
高洛峰Original
2017-02-23 11:07:232122browse

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


<p id="con" class="bookyuanjiao">


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("p", {"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 urllib2
import os
from bs4 import BeautifulSoup as BS
import locale
import sys
from lxml import etree
import re

reload(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 articles
input = 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 lists
req = urllib2.Request(url=domain)
resp = urllib2.urlopen(req)
html = resp.read()
soup = BS(html, 'lxml')
chapter_list = soup.find("p", {"class": "bookyuanjiao", "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("p", {"class": "bookyuanjiao", "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 + ""

  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。

更多Python爬取三国演义的实现方法相关文章请关注PHP中文网!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn