本文實現了用python爬取淘寶信息的功能,主要涉及訪問網頁、正則匹配、json格式化等技術。
# -*- coding: utf-8 -*
import requests
# import bs4
import re
import json
def open(keywords, page):
headers = {
"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36"}
payload = {'q': keywords, 'sort': "sale-desc", 's': (page - 1) * 44}
url = "https://s.taobao.com/search"
res = requests.get(url, params=payload)
# https://s.taobao.com/search?q=羽絨服&sort=sale-desc&s=44
return res
def get_item(res):
g_page_config = re.search(r'g_page_config = (.*?);\n', res.text)
page_config_json = json.loads(g_page_config.group(1))
page_item = page_config_json['mods']['itemlist']['data']['auctions']
result = [] # 整理出我們關注的信息(ID,標題,鏈接,售價,銷量和商家)
for each in page_item:
dict1 = dict.fromkeys(('id', 'title', 'link', 'price', 'sale', 'shoper'))
dict1['id'] = each['nid']
dict1['title'] = each['title']
dict1['link'] = each['detail_url']
dict1['price'] = each['view_price']
dict1['sale'] = each['view_sales']
dict1['shoper'] = each['nick']
result.append(dict1)
return result
def count_sales(items):
count = 0
for each in items:
if u'黑色' in each['title']: # 規定只取標題中‘###'的商品
count += int(re.search(r'\d+', each['sale']).group())
return count
def main():
keywords = raw_input("請輸入搜索關鍵詞:") # 可以爲各種商品名稱 羽絨服
length = 2 # 淘寶商品頁數
total = 0
for each in range(length):
res = open(keywords, each + 1)
# print res.text
items = get_item(res)
print items
total += count_sales(items) # 銷售總量
print(total)
if __name__ == "__main__":
main()