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parser.py
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# encoding=utf-8
# ----------------------------------------------------------------------
# 作用：解析crawl_detail.py抓取到的页面
# 日期：2016-12-12
# 作者：九茶<http://blog.csdn.net/bone_ace>
# ----------------------------------------------------------------------
import sys
reload(sys)
sys.setdefaultencoding('utf8')
import time
import pymongo
import re
import json
from lxml import etree
from multiprocessing.dummy import Pool, cpu_count
client = pymongo.MongoClient('localhost', 27017)
db = client['1212']
collection_html = db['Tmall_details']
collection_imgs = db['Tmall_detail_imgs']
collection_result = db['Tmall_result']
collection_result1 = db['Tmall_source1']
collection_result2 = db['Tmall_source2']
collection_failure = db['Tmall_detail_failure']
def run(routine):
try:
img_routines = []
detail0 = []
tree = etree.HTML(routine['Content'])
data_detail = re.findall('_DATA_Detail = *?\n?(.*?\});? ?\n', routine['Content'])
data_mdskip = re.findall('_DATA_Mdskip = *?\n?(.*?\});? ?\n', routine['Content'])
data_detail_js = json.loads(data_detail[0])
data_mdskip_js = json.loads(data_mdskip[0])
# 商品标题
title = tree.xpath('//section[@id="s-title"]/div[@class="main"]/h1/text()')
if title:
title = title[0]
else:
title = tree.xpath('//section[@id="s-title"]/div[@class="main"]/h1/text()')
if title:
title = title[0].replace(' - 天猫Tmall.com', '')
else:
title = ''
# 一个商品下可能有颜色、码数选择，不同的选择会有不同的照片
if 'valItemInfo' in data_detail_js.keys() and 'skuPics' in data_detail_js['valItemInfo'].keys():
for key in data_detail_js['valItemInfo']['skuPics'].keys():
try:
value = data_detail_js['valItemInfo']['skuPics'][key]
if key.startswith(';'):
key = key[1:]
if key.endswith(';'):
key = key[:-1]
key = 'https://detail.tmall.com/item.htm?id=%s&sku_properties=%s' % (
routine['_id'], key.replace(';', '&'))
if value.startswith('//'):
value = 'http:' + value
elif value.startswith('/'):
value = 'http:/' + value
elif not value.startswith('http'):
value = 'http://' + value
img_routines.append({'_id': value, '商品链接': key, '商品标题': title})
except Exception, e:
print e
# 网页下拉，商品介绍时显示的照片
if 'api' in data_detail_js.keys() and 'newWapDescJson' in data_detail_js['api'].keys():
for one in data_detail_js['api']['newWapDescJson']:
if 'moduleName' in one.keys() and one['moduleName'] == '商品图片' and 'data' in one.keys():
for elem in one['data']:
try:
temp = {'_id': elem['img']}
if 'width' in elem.keys():
temp['width'] = elem['width']
if 'height' in elem.keys():
temp['height'] = elem['height']
temp['商品链接'] = 'https://detail.tmall.com/item.htm?id=%s' % routine['_id']
temp['商品标题'] = title
img_routines.append(temp)
except Exception, e:
print e
for img in img_routines:
try:
collection_imgs.insert(img)
except Exception, e:
pass
# 服务保障
fuwu = []
if 'defaultModel' in data_mdskip_js.keys() and 'consumerProtection' in data_mdskip_js[
'defaultModel'].keys() and 'items' in data_mdskip_js[
'defaultModel']['consumerProtection'].keys():
for one in data_mdskip_js['defaultModel']['consumerProtection']['items']:
if 'title' in one.keys():
fuwu.append(one['title'])
fuwu = ';'.join(fuwu)
# 优惠活动
youhui = []
if 'defaultModel' in data_mdskip_js.keys() and 'couponDataDo' in data_mdskip_js[
'defaultModel'].keys() and 'couponList' in data_mdskip_js[
'defaultModel']['couponDataDo'].keys():
for one in data_mdskip_js['defaultModel']['couponDataDo']['couponList']:
if 'title' in one.keys() and one['title'] != '领取优惠券':
youhui.append(one['title'])
youhui = ';'.join(youhui)
youhui = youhui.replace('.', '点')
elif 'defaultModel' in data_mdskip_js.keys() and 'itemPriceResultDO' in data_mdskip_js[
'defaultModel'].keys() and 'tmallShopProm' in \
data_mdskip_js['defaultModel']['itemPriceResultDO'].keys():
for one in data_mdskip_js['defaultModel']['itemPriceResultDO']['tmallShopProm']:
if 'promPlanMsg' in one.keys():
youhui = ';'.join(one['promPlanMsg'])
youhui = youhui.replace('.', '点')
# 卖家地址及快递费:
maijiadizhi = ''
kuaidifei = ''
if 'defaultModel' in data_mdskip_js.keys() and 'deliveryDO' in data_mdskip_js[
'defaultModel'].keys() and 'deliverySkuMap' in data_mdskip_js[
'defaultModel']['deliveryDO'].keys():
temp = data_mdskip_js['defaultModel']['deliveryDO']['deliverySkuMap']
if 'default' in temp.keys():
for one in temp['default']:
if 'postage' in one.keys() and len(one['postage']) > 0:
kuaidifei = one['postage']
if 'skuDeliveryAddress' in one.keys() and len(one['skuDeliveryAddress']) > 0:
maijiadizhi = one['skuDeliveryAddress']
# 以上为不同颜色/型号商品共享的数据，以下求每个颜色/型号的商品信息
if 'defaultModel' in data_mdskip_js.keys() and 'itemPriceResultDO' in data_mdskip_js[
'defaultModel'].keys() and 'priceInfo' in data_mdskip_js[
'defaultModel']['itemPriceResultDO'].keys():
for elem in data_mdskip_js['defaultModel']['itemPriceResultDO']['priceInfo'].keys():
value = data_mdskip_js['defaultModel']['itemPriceResultDO']['priceInfo'][elem]
temp = {'_id': 'https://detail.tmall.com/item.htm?id=%s&skuId=%s' % (routine['_id'], elem)}
if fuwu:
temp['服务保障'] = fuwu
if youhui:
temp['优惠活动'] = youhui
if maijiadizhi:
temp['卖家地址'] = maijiadizhi
if kuaidifei:
temp['快递费'] = kuaidifei
if 'tagPrice' in value.keys() and len(value['tagPrice']) > 0:
temp['原价'] = value['tagPrice']
elif 'price' in value.keys() and len(value['price']) > 0:
temp['原价'] = value['price']
if 'promotionList' in value.keys():
for one in value['promotionList']:
if 'price' in one.keys() and len(one['price']) > 0:
temp['现价'] = one['price']
if 'startTime' in one.keys():
temp['活动开始时间'] = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(one['startTime'] / 1000))
elif 'tradeResult' in data_mdskip_js['defaultModel'].keys() and 'startTime' in \
data_mdskip_js['defaultModel'][
'tradeResult'].keys():
startTime = data_mdskip_js['defaultModel']['tradeResult']['startTime']
temp['活动开始时间'] = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(startTime / 1000))
if 'endTime' in one.keys():
temp['活动结束时间'] = time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(one['endTime'] / 1000))
temp['标题'] = title
if 'Type' in routine.keys():
temp['会场'] = routine['Type']
if 'ShopUrl' in routine.keys():
temp['商店链接'] = routine['ShopUrl']
temp['商品ID'] = routine['_id']
detail0.append(temp)
for item in detail0:
try:
collection_result.insert(item)
except Exception, e:
print e
try:
data_detail_js['_id'] = routine['_id']
collection_result1.insert(data_detail_js)
except Exception, e:
print e
try:
data_mdskip_js['_id'] = routine['_id']
collection_result2.insert(data_mdskip_js)
except Exception, e:
print e
with open('ids.txt', 'a') as f:
f.write('%s\n' % routine['_id'])
print 'Finish %s' % routine['_id']
except Exception, e:
print e
try:
collection_failure.insert(routine)
except Exception, e:
print e
if __name__ == '__main__':
pool = Pool(cpu_count())
pool.map(run, collection_html.find())
pool.close()
pool.join()