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抽空写了个python爬虫爬取起点小说《江峰柳月》

上两周整理笔记发现一些哲理性句子,想到了17年看的一部小说,想再看一遍,但苦于满屏的广告,太浪费时间了。于是花了几天时间写了一个爬虫把文章爬下来,看着舒服多了。

下面是代码,请合理文明使用,不要用于非法用途。

import json
import requests, random
from requests.exceptions import RequestException
import re
import time
import random
user_agent = [
	"Mozilla/5.0 (Windows; U; Windows NT 6.1; en-us) AppleWebKit/534.50 (KHTML, like Gecko) Version/5.1 Safari/534.50",
	"Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0",
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Trident/5.0)",
	"Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0)",
	"Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)",
	"Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:2.0.1) Gecko/20100101 Firefox/4.0.1",
	"Mozilla/5.0 (Windows NT 6.1; rv:2.0.1) Gecko/20100101 Firefox/4.0.1",
	"Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; en) Presto/2.8.131 Version/11.11",
	"Opera/9.80 (Windows NT 6.1; U; en) Presto/2.8.131 Version/11.11",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Maxthon 2.0)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; TencentTraveler 4.0)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; The World)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; 360SE)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Avant Browser)",
	"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)",
	"Opera/9.80 (Android 2.3.4; Linux; Opera Mobi/build-1107180945; U; en-GB) Presto/2.8.149 Version/11.10",
	"Mozilla/5.0 (compatible; MSIE 9.0; Windows Phone OS 7.5; Trident/5.0; IEMobile/9.0; HTC; Titan)",
	"Mozilla/4.0 (compatible; MSIE 6.0; ) Opera/UCWEB7.0.2.37/28/999",
]
def get_one_page(url):
	#请求头
	# headers ={
	# 	'User-Agent':'Mozilla/5.0(Macintosh;Intel Mac OS X 10_11_4) AppleWebKit/537.36 (KHTML,like Gecko) Chrome/52.0.2743.116 Safari/537.36'
	# }
	headers = {'User-Agent': random.choice(user_agent)}
	#打印当前时间
	print(time.strftime("%Y-%m-%d %H:%M:%S",time.localtime()) )
	response = requests.get(url, headers = headers)
	response.encoding='utf-8'
	#response = requests.get(url,proxies=http,timeout=3)
	print(response.status_code)
	# print(response.text)
	if response.status_code == 200:
		# return response.content.decode('utf-8')
		return response.content.decode('utf-8','ignore')
		# return response.content.decode('GBK')
		# return response.content.decode('GBK','ignore')
		# return response.content
	return None
#找到所有章节的链接
#chcp 65001 设置控制台编码
def parse_one_page(html):
	#正则表达式
	# pattern = re.compile(
	# 	'<div id="book_text">(.*?)</div>',re.S
	# )
	pattern = re.compile(
		'<div id="content" name="content">(.*?)</div>',re.S
	)
	
	#对文本进行筛选
	items = re.findall(pattern,html)
	
	# print(items)
	for item in items:
		
		item = item.replace('\n&nbsp;','')
		item = item.replace('&nbsp;','')
		item = item.replace('<br />','')
		item = item.replace(' ','')
		# print(item)
		yield item
		# yield{
		# 		'index':item
		# 	}
#筛选出章节名称
def parse_one_page_head(html):
	#print(html)
	#正则表达式
	pattern = re.compile(
		'<h1>(.*)</h1>',re.S
	)
	#对文本进行筛选
	items = re.findall(pattern,html)
	
	
	for item in items:
		# print(item)
		# yield{
		# 		'index':item
		# 	}
		yield item
			
#将结果保存到文本文档中	
def write_to_file(content):
	with open('liuyue(142).txt','a',encoding='utf-8') as f:
		# f.write(json.dumps(content,ensure_ascii=False)+'\n')
		f.write(content+'\n\n')
		# f.write('sfgdffks1\nddffd2\r\ndfjgf3\ndkjk4\r\n5')
	
def main(offset):
	# url = 'http://www.bequgew.com/99647/'+str(offset)+'.html'
	# url = 'https://www.rzlib.net/b/25/25339/'+str(offset)+'.html'
	# url = 'http://www.dingdianxs.la/29/29228/'+str(offset)+'.html'
	url = str('http://www.dingdianxs.la/29/29228/%s.html' % offset)
	html = get_one_page(url)
	# print(html)
	#首先筛选出章节
	for item in parse_one_page_head(html):
		print(item)
		write_to_file(item)
	
	#筛选出段落
	for item in parse_one_page(html):
		print(item)
		write_to_file(item)
	
if __name__ == '__main__':
	#从第一章到最后一章
	# 12639965
	# 12640047:83
	# 12640167:202
	for i in range(27661700,27661730):
		print(i)
		try:
			main(i)
		except Exception as e:
			print('错误明细是',e.__class__.__name__,e)   #continue#jia
			continue
		#每10秒访问一次
		time_waite = random.randint(3,7)
		time.sleep(time_waite) 

注意不要频繁抓取,以免影响服务器正常工作,甚至自己被屏蔽。

写的时候遇到很多问题,被注释的语句很多是因为在某些情况不适用了换其他方法。

大家如果有不理解的地方可以去Weiyoun(id:WeiyounMimi)公众号找我交流。


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