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champssports.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import helper
import re
import qiniuUploader
import mongo
import json
import re
import os
import time
from threading import Thread
try:
from queue import Queue
except ImportError:
from Queue import Queue
error_detail_url = {}
class PageSpider(Thread):
def __init__(self, url, q, error_page_url_queue, gender):
# 重写写父类的__init__方法
super(PageSpider, self).__init__()
self.url = url
self.q = q
self.error_page_url_queue = error_page_url_queue
self.gender = gender
self.headers = {'User-Agent': 'Mozilla/5.0'}
def run(self):
try:
pq = helper.get(self.url, myHeaders=self.headers)
a_list = pq('div.mainsite_record_listing li > a')
total = len(a_list)
for i in range(0, total):
self.q.put(a_list[i].get('href'))
except:
self.error_page_url_queue.put({'url': self.url, 'gender': self.gender})
class GoodsSpider(Thread):
def __init__(self, url, gender, q, crawl_counter):
# 重写写父类的__init__方法
super(GoodsSpider, self).__init__()
self.url = url
self.gender = gender
self.q = q
self.crawl_counter = crawl_counter
self.headers = {'User-Agent': 'Mozilla/5.0'}
def run(self):
'''
解析网站源码
'''
time.sleep(2)
try:
pq = helper.get(self.url, myHeaders=self.headers)
# 款型名称
name = None
try:
name = pq('span.product_title').text()
except:
return
# 配色的编号
number = pq('span#productSKU').text()
# 颜色尺寸
# 找出所有的尺寸
size_all_list = json.loads(re.compile(r'var model =.*"\};').findall(pq.html())[0].replace('var model = ', '').replace('"};', '"}'))
size_all_list = size_all_list.get('AVAILABLE_SIZES')
size_all_list = [float(size.strip()) for size in size_all_list]
size_price_json = json.loads(re.compile(r'var sizeObj =.*}];').findall(pq.html())[0].replace('var sizeObj = ', '').replace('}];', '}]'))
size_price_json = [{'size': item.get('size').strip(), 'price': float(item.get('pr_sale').strip())} for item in size_price_json]
# size_price_list = [{'size': float(a.get('size').strip()), 'price': float(a.get('pr_sale').strip())} for a in size_price_json]
size_price_list = []
for size in size_all_list:
finded = False
for size_price in size_price_json:
if size_price.get('size') == size:
size_price_list.append({
'size': size,
'price': size_price.get('price'),
'isInStock': True,
})
finded = True
break
if not finded:
size_price_list.append({
'size': size,
'price': 0.0,
'isInStock': False,
})
# helper.log(name, number, self.url, size_price_list)
img_downloaded = mongo.is_pending_goods_img_downloaded(self.url)
if not img_downloaded:
img_response = helper.get('https://images.champssports.com/is/image/EBFL2/%s?req=imageset,json' % number, returnText=True)
img_response = re.compile(r'"IMAGE_SET":"\w+/[_\w]+;').findall(img_response)
img_url = 'https://images.champssports.com/is/image/%s?hei=600&wid=600' % img_response[0].replace('"IMAGE_SET":"', '').replace(';', '')
# 下载图片
result = helper.downloadImg(img_url, os.path.join('.', 'imgs', 'champssports', '%s.jpg' % number))
if result == 1:
# 上传到七牛
qiniuUploader.upload_2_qiniu('champssports', '%s.jpg' % number, './imgs/champssports/%s.jpg' % number)
img_downloaded = True
result = mongo.insert_pending_goods(name, number, self.url, size_price_list, ['%s.jpg' % number], self.gender, '', 'champssports', '5af1310e48555b1ba3387bcc', self.crawl_counter, img_downloaded=img_downloaded)
except:
global error_detail_url
error_counter = error_detail_url.get(self.url, 1)
error_detail_url[self.url] = error_counter + 1
helper.log('[ERROR] error timer = %s, url = %s' % (error_counter, self.url), 'champssports')
if error_counter < 3:
self.q.put(self.url)
def fetch_page(url_list, gender, q, error_page_url_queue, crawl_counter):
page_thread_list = []
# 构造所有url
for url in url_list:
# 创建并启动线程
time.sleep(1.2)
page_spider = PageSpider(url, q, error_page_url_queue, gender)
page_spider.start()
page_thread_list.append(page_spider)
for t in page_thread_list:
t.join()
goods_thread_list = []
while True:
queue_size = q.qsize()
if queue_size > 0:
# 每次启动5个抓取商品的线程
for i in range(5 if queue_size > 5 else queue_size):
goods_spider = GoodsSpider(q.get(), gender, q, crawl_counter)
goods_spider.start()
goods_thread_list.append(goods_spider)
for t in goods_thread_list:
t.join()
goods_thread_list = []
else:
break
def start(action):
if action == 'common':
crawl_counter = mongo.get_crawl_counter('champssports')
# 创建一个队列用来保存进程获取到的数据
q = Queue()
# 有错误的页面链接
error_page_url_queue = Queue()
total_page = 16
# https://www.champssports.com/api/products/search?products=&query=%3Arelevance%3Agender%3A200000%3AproductType%3A200005¤tPage=1&pageSize=60×tamp=0
base_url = 'https://www.champssports.com/Mens/Shoes/_-_/N-24Zrj?cm_PAGE=%d&Rpp=180&crumbs=991&Nao=%d'
fetch_page([base_url % ((page - 1) * 180, (page - 1) * 180) for page in range(1, total_page + 1)], 1, q, error_page_url_queue, crawl_counter)
total_page = 7
base_url = 'https://www.champssports.com/Womens/Shoes/_-_/N-25Zrj?cm_PAGE=%d&Rpp=180&crumbs=991&Nap=%d'
fetch_page([base_url % ((page - 1) * 180, (page - 1) * 180) for page in range(1, total_page + 1)], 2, q, error_page_url_queue, crawl_counter)
# 处理出错的链接
while not error_page_url_queue.empty():
error_page_url_list = []
while not error_page_url_queue.empty():
error_page_url_list.append(error_page_url_queue.get())
error_page_men_url_list = [url_data.get('url') for url_data in error_page_url_list if url_data.get('gender') == 1]
fetch_page(error_page_men_url_list, 1, q, error_page_url_queue, crawl_counter)
error_page_women_url_list = [url_data.get('url') for url_data in error_page_url_list if url_data.get('gender') == 2]
fetch_page(error_page_women_url_list, 2, q, error_page_url_queue, crawl_counter)
helper.log('done', 'champssports')