def save_shop_cate(session, shop_prof_dir):
parsed = {i.sid for i in session.query(ShopTags).distinct().all()}
print '{} shop category parsed'.format(len(parsed))
data = []
for sid, c in read_file(shop_prof_dir, parsed, lambda fn: fn[:-5]):
text = parse(_cate_progs, c, id, 'shop cate')
tags = set(_cate_field_progs.findall(text)) - {'»'}
data.extend([ShopTags(sid, tag) for tag in tags])
session.add_all(data)
session.commit()
def start(self, urls):
"""
启动爬虫方法
:param urls: 启动URL
:return: 抓取的URL数量
"""
number = 0
self._manager.append_new_urls(urls)
while self._manager.has_new_url():
number += 1
new_url = self._manager.get_new_url()
print('开始下载第{:03}个URL：{}'.format(number, new_url))
html = download(new_url)
if html is None:
# print('html is empty .')
continue
links, results = parse(html, new_url)
if len(links) > 0:
self._manager.append_new_urls(links)
if len(results) > 0:
self._processor.process(results)
return number
def addr(c, sid):
return parse(addr_ptns, c, sid, 'shop addr')
def name(c, sid):
return parse(name_ptns, c, sid, 'shop name')
def star(c, sid):
return int(parse(star_ptns, c, sid, 'shop star', default=0))
re.compile(r'class="user-info">\s*<a.*?href="/member/(\d+)".*?>(.*?)</a>', re.DOTALL),
re.compile(r'<p class="name">\s*<a.*?href="/member/(\d+)".*?>(.*?)</a>', re.DOTALL),
]
_rev_star_ptns = [
re.compile(r'-str(\d+)'),
re.compile(r'-star(\d+)'),
]
_cate_progs = [
re.compile(r'<div class="breadcrumb">(.*?)</div>', re.DOTALL),
]
_cate_field_progs = re.compile(r'>\s*([^<>]+?)\s*(?:</a>|</span>)', re.DOTALL)
rev_entry = lambda c, id: parse(_rev_entry_ptns, c, id, 'review entry') or ''
rev_rec = lambda c, id: parse(_rev_recommend_ptns, c, id, 'review recommend', log_not_match=False) or ''
rev_user = lambda c, id: parse(_rev_user_ptns, c, id, 'review user')
rev_star = lambda c, id: int(parse(_rev_star_ptns, c, id, 'review star') or 0)
def star(c, sid):
return int(parse(star_ptns, c, sid, 'shop star', default=0))
def name(c, sid):
return parse(name_ptns, c, sid, 'shop name')
def addr(c, sid):
return parse(addr_ptns, c, sid, 'shop addr')
