python爬取拉鉤網招聘信息

#!/usr/bin/python3
#coding:utf8
import re
from bs4 import BeautifulSoup
import requests
from threading import Thread
class main(object):
	def __init__(self):
		self.url='https://www.lagou.com/zhaopin/Java/1/'
		self.w=open('Java','w')
		self.headers={
'Accept':'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8',
'Accept-Language':'zh-CN,zh;q=0.8',
'Cache-Control':'max-age=0',
'Connection':'keep-alive',
'Host':'www.lagou.com',
'Referer':'https://www.lagou.com/',
'Upgrade-Insecure-Requests':'1',
'User-Agent':'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/56.0.2924.87 Safari/537.36'
		}
	def getpage(self):
		page=requests.get(self.url,headers=self.headers)

		pattern=re.compile(
			u'<div.*?class="list_item_top">.*?'+
			u'<a class="position_link" href="//(.*?)".*?'+
			u'<h2>(.*?)</h2>.*?'+
			u'<em>(.*?)</em>.*?'+
			u'<span class="format-time">(.*?)</span>.*?'+
			u'<div class="li_b_l">.*?'+
			u'<span class="money">(.*?)</span>.*?<!--<i></i>-->(.*?)</div>.*?'+
			u'<div class="company">.*?'+
			u'<div class="company_name">.*?<a.*?>(.*?)</a>.*?'+
			u'<div class="industry">(.*?)</div>.*?'
			,re.S)
		l=re.findall(pattern,page.text)
		for s in l:
			self.w.write(str(s[0]+"\t,"+s[1]+"\t,"+s[2]+"\t,"+s[3]+"\t,"+s[4]+"\t,"+s[5]+"\t,"+s[6]+"\t,"+s[7])+"\n")
if __name__=="__main__":
	m=main()
	t=[]

	for n in range(1,30):
		m.url='https://www.lagou.com/zhaopin/Java/'
		m.url+=str(n)
		T=Thread(target=m.getpage)
		T.start()
		t.append(T)

	for tt in t:
		tt.join()

	m.w.close()