用python编写的抓京东商品价格的爬虫
闲着没事尝试抓一下京东的数据,需要使用到的库有:BeautifulSoup,urllib2,在Python2下测试通过
from creepy import Crawler from BeautifulSoup import BeautifulSoup import urllib2 import json class MyCrawler(Crawler): def process_document(self, doc): if doc.status == 200: print '[%d] %s' % (doc.status, doc.url) try: soup = BeautifulSoup(doc.text.decode('gb18030').encode('utf-8')) except Exception as e: print e soup = BeautifulSoup(doc.text) print soup.find(id="product-intro").div.h1.text url_id=urllib2.unquote(doc.url).decode('utf8').split('/')[-1].split('.')[0] f = urllib2.urlopen('http://p.3.cn/prices/get?skuid=J_'+url_id,timeout=5) price=json.loads(f.read()) f.close() print price[0]['p'] else: pass crawler = MyCrawler() crawler.set_follow_mode(Crawler.F_SAME_HOST) crawler.set_concurrency_level(16) crawler.add_url_filter('.(jpg|jpeg|gif|png|js|css|swf)$') crawler.crawl('http://item.jd.com/982040.html')
部分运行结果:
[200] http://item.jd.com/519836.html
三星 HM1200 原装蓝牙耳机 黑色
118.00
[200] http://item.jd.com/603133.html
捷波朗 EASYVOICE+ 易音 蓝牙耳机 黑色
-1
[200] http://item.jd.com/1030552473.html
【年终热卖】嘉源手机N699 2.8寸双屏双卡双待双电2000毫安翻盖手机 黑
268.00
来源:PY学习网:原文地址:https://www.py.cn/article.html