def __init__(self, category=None, *args, **kwargs):
super(JDSpider, self).__init__(*args, **kwargs)
self.log(category, INFO)
for url in self.generate_root_url_by_configuration():
self.start_urls.append(url)
self.category = category
self.job = Job()
def __init__(self, category=None, *args, **kwargs):
super(JDSpider, self).__init__(*args, **kwargs)
self.log(category, INFO)
for url in self.generate_root_url_by_configuration():
self.start_urls.append(url)
self.category = category
self.job = Job()
class JDSpider(scrapy.Spider):
name = "jd_web"
start_urls = []
def __init__(self, category=None, *args, **kwargs):
super(JDSpider, self).__init__(*args, **kwargs)
self.log(category, INFO)
for url in self.generate_root_url_by_configuration():
self.start_urls.append(url)
self.category = category
self.job = Job()
#self.promotion_log = open('promotion.log', 'w')
def generate_root_url_by_configuration(self):
self.client = MongoClient(settings['MONGODB_SERVER'],
settings['MONGODB_PORT'])
self.db = self.client[settings['MONGODB_DB']]
self.collection = self.db['category']
items = self.collection.aggregate([{
"$unwind": "$provider"
}, {
"$match": {
"provider.name": "jd"
}
}, {
"$group": {
"_id": "$_id",
"name": {
'$first': '$name'
},
"value": {
'$first': '$value'
},
"param1": {
'$first': '$provider.param1'
},
}
}])
self.category_mapping = {}
for item in items['result']:
self.category_mapping[item['param1']] = int(item['value'])
yield "http://list.jd.com/list.html?cat=%s&page=1&&delivery=1&JL=6_0_0" % (
item["param1"])
def get_category(self, provider_category):
"""
convert jd category to standard category
:return: the value of standard category
"""
return self.category_mapping[provider_category]
def make_requests_from_url(self, url):
self.job.log_start()
m = re.search('cat=(.*?)&', url)
return Request(url,
dont_filter=True,
meta={
'stock_page': 1,
'category': m.group(1)
})
def extract_single_stock(self, node):
#price_class = node.xpath('.//div[@class="p-price"]/strong/@class').extract()[0]
url = node.xpath('.//div[@class="p-name"]/a/@href').extract()[0]
name = node.xpath('.//div[@class="p-name"]/a/@title').extract()[0]
img = node.xpath(
'.//div[@class="p-img"]/a/img/@data-lazy-img').extract()[0]
comments = node.xpath(
'.//div[@class="p-commit"]//a/text()').extract()[0]
# remove the prefix J_
id = url[url.rfind("/") + 1:url.rfind(".html")]
#self.log("%s-%s-%s" % (id, url, name), INFO)
return (id, name, url, img, comments)
def generate_price_query_url(self, stock_id):
return 'http://p.3.cn/prices/get?skuid=J_%s' % (stock_id)
def generate_mobile_price_query_url(self, stock_id):
return 'http://item.m.jd.com/product/%s.html' % (stock_id)
def generate_promotion_query_url(self, stock_id):
return 'http://pi.3.cn/promoinfo/get?id=%s&origin=1&callback=Promotions.set' % (
stock_id)
def generate_item(self, stock, category):
item = JDStockItem()
item['uid'] = int(stock[0])
item['name'] = stock[1]
item['url'] = stock[2]
item['comments'] = int(stock[4])
item['category'] = self.get_category(category)
item['changed'] = 0
item['last_update'] = datetime.now()
item['last_price'] = float(0.0)
item['last_mobile_price'] = float(0.0)
return item
def generate_price_item(self, price):
item = JDStockPrice()
item['uid'] = int(price[0])
item['price'] = round(float(price[1]), 2)
item['timestamp'] = datetime.now()
return item
def generate_mobile_price_item(self, uid, price):
item = JDStockMobilePrice()
item['uid'] = int(uid)
try:
item['mobile_price'] = round(float(price), 2)
except UnicodeEncodeError:
self.log(
"UnicodeEncodeError-->SKU:%s mobile price %s can't decode" %
(uid, price))
item['mobile_price'] = -1.00
item['timestamp'] = datetime.now()
return item
def generate_img_item(self, image):
item = JDStockImage()
item['uid'] = int(image[0])
item['data'] = image[3]
return item
def is_stock_img_exist(self, uid):
return os.path.exists(
os.path.join(settings['JD_IMAGE_PATH'], '%s.jpg' % (uid)))
def parse(self, response):
# Get price of item
if (response.meta.has_key('stock_price')):
price_obj = JSONDecoder().decode(response.body)
#remove the prefix J_
stock_id_str = price_obj[0]['id'][2:]
yield self.generate_price_item((stock_id_str, price_obj[0]['p']))
yield Request(
url=self.generate_mobile_price_query_url(stock_id_str),
meta={
'stock_mobile_price': 1,
'stock_id': stock_id_str
},
priority=PRIORITY_MOBILE_PRICE)
return
if (response.meta.has_key('stock_mobile_price')):
m_price = response.xpath(
'//span[@class="p-price"]/text()').extract()[0][1:]
yield self.generate_mobile_price_item(response.meta['stock_id'],
m_price)
yield Request(url=self.generate_promotion_query_url(
response.meta['stock_id']),
meta={
'stock_promotion': 1,
'stock_id': response.meta['stock_id']
},
priority=PRIORITY_PROMOTION_PRICE)
if (response.meta.has_key('stock_img')):
item = JDStockImage()
item['uid'] = int(response.meta['stock_id'])
item['data'] = response.body
yield item
return
if (response.meta.has_key('stock_promotion')):
itemList = JDStockPromotionList()
itemList['uid'] = int(response.meta['stock_id'])
itemList['promotionList'] = []
m = re.match('Promotions.set\((.*)\);', response.body)
if m:
content = m.group(1)
if content != "":
#debug
#self.promotion_log.write(content+"\n\n")
promotion_obj = JSONDecoder().decode(content)
promotionInfoList = promotion_obj['promotionInfoList']
if promotionInfoList:
for promotion in promotionInfoList:
"""
promoType
1 满额返券满1万元送500元京东E卡
4 有赠品
10 满减
set : 1 as rebate now
"""
if promotion['rebate']:
item = JDStockPromotion()
item['type'] = 1
item['rebate'] = promotion['rebate']
itemList['promotionList'].append(item)
if promotion['needMondey'] and promotion['reward']:
item = JDStockPromotion()
item['type'] = promotion[
'promoType'] # 10 is 满减
item['needMoney'] = float(
promotion['needMondey'])
item['reward'] = float(promotion['reward'])
itemList['promotionList'].append(item)
yield itemList
return
if (response.meta.has_key('stock_page')):
for stock in response.xpath('//li[@index]'):
stock_tab_items = stock.xpath(
'.//div[contains(@class, "tab-content-item")]')
if stock_tab_items:
for single_item in stock_tab_items:
item = self.extract_single_stock(single_item)
yield self.generate_item(item,
response.meta['category'])
if not self.is_stock_img_exist(item[0]):
yield Request(url=item[3],
meta={
'stock_img': 1,
'stock_id': item[0]
})
yield Request(url=self.generate_price_query_url(
item[0]),
priority=PRIORITY_PRICE,
meta={'stock_price': 1})
else:
item = self.extract_single_stock(stock)
yield self.generate_item(item, response.meta['category'])
if not self.is_stock_img_exist(item[0]):
yield Request(url=item[3],
meta={
'stock_img': 1,
'stock_id': item[0]
})
yield Request(url=self.generate_price_query_url(item[0]),
priority=PRIORITY_PRICE,
meta={'stock_price': 1})
next_page_nodes = response.xpath('//a[@class="pn-next"]')
if next_page_nodes:
next_page = next_page_nodes[0].xpath('@href').extract()[0]
next_page_url = "http://list.jd.com%s" % (next_page)
#self.log(next_page_url, INFO)
r = Request(url=next_page_url,
priority=PRIORITY_PAGE,
meta={
'stock_page': 1,
'category': response.meta['category']
})
yield r
return
class JDSpider(scrapy.Spider):
name = "jd_web"
start_urls = []
def __init__(self, category=None, *args, **kwargs):
super(JDSpider, self).__init__(*args, **kwargs)
self.log(category, INFO)
for url in self.generate_root_url_by_configuration():
self.start_urls.append(url)
self.category = category
self.job = Job()
#self.promotion_log = open('promotion.log', 'w')
def generate_root_url_by_configuration(self):
self.client = MongoClient(settings['MONGODB_SERVER'], settings['MONGODB_PORT'])
self.db = self.client[settings['MONGODB_DB']]
self.collection = self.db['category']
items = self.collection.aggregate([
{"$unwind":"$provider"},
{"$match":{"provider.name":"jd"}},
{"$group": {
"_id":"$_id",
"name": {'$first': '$name'},
"value": {'$first': '$value'},
"param1": {'$first': '$provider.param1'},
}}
])
self.category_mapping = {}
for item in items['result']:
self.category_mapping[item['param1']] = int(item['value'])
yield "http://list.jd.com/list.html?cat=%s&page=1&&delivery=1&JL=6_0_0" % (item["param1"])
def get_category(self, provider_category):
"""
convert jd category to standard category
:return: the value of standard category
"""
return self.category_mapping[provider_category]
def make_requests_from_url(self, url):
self.job.log_start()
m = re.search('cat=(.*?)&', url)
return Request(url, dont_filter=True, meta={'stock_page':1, 'category' : m.group(1)})
def extract_single_stock(self, node):
#price_class = node.xpath('.//div[@class="p-price"]/strong/@class').extract()[0]
url = node.xpath('.//div[@class="p-name"]/a/@href').extract()[0]
name = node.xpath('.//div[@class="p-name"]/a/@title').extract()[0]
img = node.xpath('.//div[@class="p-img"]/a/img/@data-lazy-img').extract()[0]
comments = node.xpath('.//div[@class="p-commit"]//a/text()').extract()[0]
# remove the prefix J_
id = url[url.rfind("/")+1 : url.rfind(".html")]
#self.log("%s-%s-%s" % (id, url, name), INFO)
return (id, name, url, img, comments)
def generate_price_query_url(self, stock_id):
return 'http://p.3.cn/prices/get?skuid=J_%s' % (stock_id)
def generate_mobile_price_query_url(self, stock_id):
return 'http://item.m.jd.com/product/%s.html' % (stock_id)
def generate_promotion_query_url(self, stock_id):
return 'http://pi.3.cn/promoinfo/get?id=%s&origin=1&callback=Promotions.set' % (stock_id)
def generate_item(self, stock, category):
item = JDStockItem()
item['uid'] = int(stock[0])
item['name'] = stock[1]
item['url'] = stock[2]
item['comments'] = int(stock[4])
item['category'] = self.get_category(category)
item['changed'] = 0
item['last_update'] = datetime.now()
item['last_price'] = float(0.0)
item['last_mobile_price'] = float(0.0)
return item
def generate_price_item(self, price):
item = JDStockPrice()
item['uid'] = int(price[0])
item['price'] = round(float(price[1]), 2)
item['timestamp'] = datetime.now()
return item
def generate_mobile_price_item(self, uid, price):
item = JDStockMobilePrice()
item['uid'] = int(uid)
try:
item['mobile_price'] = round(float(price), 2)
except UnicodeEncodeError:
self.log("UnicodeEncodeError-->SKU:%s mobile price %s can't decode" % (uid, price))
item['mobile_price'] = -1.00
item['timestamp'] = datetime.now()
return item
def generate_img_item(self, image):
item = JDStockImage()
item['uid'] = int(image[0])
item['data'] = image[3]
return item
def is_stock_img_exist(self, uid):
return os.path.exists(os.path.join(settings['JD_IMAGE_PATH'], '%s.jpg' % (uid)))
def parse(self, response):
# Get price of item
if(response.meta.has_key('stock_price')):
price_obj = JSONDecoder().decode(response.body)
#remove the prefix J_
stock_id_str = price_obj[0]['id'][2:]
yield self.generate_price_item((stock_id_str, price_obj[0]['p']))
yield Request(url=self.generate_mobile_price_query_url(stock_id_str),
meta={'stock_mobile_price':1, 'stock_id':stock_id_str}, priority=PRIORITY_MOBILE_PRICE)
return
if(response.meta.has_key('stock_mobile_price')):
m_price = response.xpath('//span[@class="p-price"]/text()').extract()[0][1:]
yield self.generate_mobile_price_item(response.meta['stock_id'], m_price);
yield Request(url=self.generate_promotion_query_url(response.meta['stock_id']),
meta={'stock_promotion':1, 'stock_id':response.meta['stock_id']}, priority=PRIORITY_PROMOTION_PRICE)
if(response.meta.has_key('stock_img')):
item = JDStockImage()
item['uid'] = int(response.meta['stock_id'])
item['data'] = response.body
yield item
return
if(response.meta.has_key('stock_promotion')):
itemList = JDStockPromotionList()
itemList['uid'] = int(response.meta['stock_id'])
itemList['promotionList'] = []
m = re.match('Promotions.set\((.*)\);', response.body)
if m:
content = m.group(1)
if content != "":
#debug
#self.promotion_log.write(content+"\n\n")
promotion_obj = JSONDecoder().decode(content)
promotionInfoList = promotion_obj['promotionInfoList']
if promotionInfoList:
for promotion in promotionInfoList:
"""
promoType
1 满额返券满1万元送500元京东E卡
4 有赠品
10 满减
set : 1 as rebate now
"""
if promotion['rebate']:
item = JDStockPromotion()
item['type'] = 1
item['rebate'] = promotion['rebate']
itemList['promotionList'].append(item)
if promotion['needMondey'] and promotion['reward']:
item = JDStockPromotion()
item['type'] = promotion['promoType'] # 10 is 满减
item['needMoney'] = float(promotion['needMondey'])
item['reward'] = float(promotion['reward'])
itemList['promotionList'].append(item)
yield itemList
return
if(response.meta.has_key('stock_page')):
for stock in response.xpath('//li[@index]'):
stock_tab_items = stock.xpath('.//div[contains(@class, "tab-content-item")]')
if stock_tab_items:
for single_item in stock_tab_items:
item = self.extract_single_stock(single_item)
yield self.generate_item(item, response.meta['category'])
if not self.is_stock_img_exist(item[0]):
yield Request(url=item[3], meta={'stock_img':1, 'stock_id':item[0]})
yield Request(url=self.generate_price_query_url(item[0]), priority=PRIORITY_PRICE,
meta={'stock_price':1})
else:
item = self.extract_single_stock(stock)
yield self.generate_item(item, response.meta['category'])
if not self.is_stock_img_exist(item[0]):
yield Request(url=item[3], meta={'stock_img':1, 'stock_id':item[0]})
yield Request(url=self.generate_price_query_url(item[0]), priority=PRIORITY_PRICE,
meta={'stock_price':1})
next_page_nodes = response.xpath('//a[@class="pn-next"]')
if next_page_nodes:
next_page = next_page_nodes[0].xpath('@href').extract()[0]
next_page_url = "http://list.jd.com%s" % (next_page)
#self.log(next_page_url, INFO)
r = Request(url=next_page_url, priority=PRIORITY_PAGE,
meta={'stock_page':1, 'category' : response.meta['category']})
yield r
return
