一个用于爬取智联招聘信息的python爬虫

#coding:utf-8

import re
import requests
import Queue
import threading
import pymongo
from config import *
from urllib import urlencode
from lxml import etree
from bs4 import BeautifulSoup as bs

client = pymongo.MongoClient(MONGO_URL)
db = client[MONGO_DB]

class Position_Spider(threading.Thread):

	def __init__(self):
		threading.Thread.__init__(self)

	def run(self,queue):
		while not queue.empty():
			url = queue.get_nowait()
			self.request(url)

	def request(self,url):
		headers = {
		'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0',
		}
		re = requests.get(url=url,headers=headers)
		if re.status_code == 200:
			html = re.content
			self.get_position(html)
			
		else:
			print "open website filed"
			print re.status_code

	def get_position(self,html):
		soup = bs(html,'lxml')
		position_sites = soup.find_all(name="a",attrs={"style":"font-weight: bold"})
		for position_site in position_sites:
			position = position_site.string
			
			print position

			headers = {
			'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64; rv:52.0) Gecko/20100101 Firefox/52.0',
			}
			re = requests.get(url=position_site["href"],headers=headers)
			if re.status_code == 200:
				html = re.content
				self.positions_detail(html)
			else:
				print "open website filed"
				print re.status_code

	def positions_detail(self,html):

		selector = etree.HTML(html)

		position_list= selector.xpath("//div[5]/div[1]/div[1]/h1/text()")
		company_list= selector.xpath("//div[5]/div[1]/div[1]/h2/a/text()")
		salary_list= selector.xpath("//div[6]/div[1]/ul/li[1]/strong/text()")
        city_list= selector.xpath("//div[6]/div[1]/ul/li[2]/strong/a/text()")
        record_list= selector.xpath("//div[6]/div[1]/ul/li[6]/strong/text()")
        experience_list= selector.xpath("//div[6]/div[1]/ul/li[5]/strong/text()")
        skill_list= selector.xpath("//div[@class='tab-inner-cont']/p[2]/span/text()")

        for p,c ,s,ci,r,e,sk in zip(position_list,company_list,salary_list,city_list,record_list,experience_list,skill_list):
        	#print p.encode('utf-8')
        	print c.encode('utf-8')
        	print s.encode('utf-8')
        	print ci.encode('utf-8')
        	print r.encode('utf-8')
        	print e.encode('utf-8')
        	print sk.encode('utf-8')
        	result = {'position':p,'company':c,'salary':s,'city':ci,'record':r,'experience':e,'skill':sk}
		save_to_mongo(result)

	def save_to_mongo(self,result):
		if db[MONGO_TABLE].insert(result):
			print "存储成功"
			return True
			return False

	def get_url(self):
		queue = Queue.Queue()

		for i in range(1,90):
			queue.put("http://sou.zhaopin.com/jobs/searchresult.ashx?bj=160000&jl=%E9%80%89%E6%8B%A9%E5%9C%B0%E5%8C%BA&isadv=0&p=" + str(i))
	
		threads = []
		threads_count = 1
		
		for i in range(threads_count):
			threads.append(self.run(queue))

		for t in threads:
			t.start()

		for t in threads:
			t.join()

		
def main():
	position = Position_Spider()

	#for province in provinces:
	print position.get_url()
	
if __name__ == '__main__':
	main()

xpath调用有点问题，单独拿出来没毛病，但是程序里边就有问题。