async def _get_cookies(self) -> str:
'''
获取请求需要的cookies
:return:
'''
# 获取cookies
my_phantomjs = BaseDriver(executable_path=PHANTOMJS_DRIVER_PATH,
ip_pool_type=self.ip_pool_type)
cookies = my_phantomjs.get_url_cookies_from_phantomjs_session(
url='https://h5.jumei.com/')
try:
del my_phantomjs
except:
pass
if cookies == '':
self.lg.error('!!! 获取cookies失败 !!!')
self.lg.info('获取cookies成功!')
return cookies
def run_forever(self):
'''
实时更新数据
:return:
'''
tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
try:
tmp_sql_server._delete_table(sql_str=jm_delete_str_2)
result = list(tmp_sql_server._select_table(sql_str=jm_select_str_1))
except TypeError:
print('TypeError错误, 原因数据库连接失败...(可能维护中)')
result = None
if result is None:
pass
else:
print('------>>> 下面是数据库返回的所有符合条件的goods_id <<<------')
print(result)
print('--------------------------------------------------------')
print('即将开始实时更新数据, 请耐心等待...'.center(100, '#'))
index = 1
# 获取cookies
my_phantomjs = BaseDriver(executable_path=PHANTOMJS_DRIVER_PATH, ip_pool_type=self.ip_pool_type)
cookies = my_phantomjs.get_url_cookies_from_phantomjs_session(url='https://h5.jumei.com/')
try: del my_phantomjs
except: pass
if cookies == '':
print('!!! 获取cookies失败 !!!')
return False
print('获取cookies成功!')
self.headers.update(Cookie=cookies)
for item in result: # 实时更新数据
miaosha_end_time = json.loads(item[1]).get('miaosha_end_time')
miaosha_end_time = int(str(time.mktime(time.strptime(miaosha_end_time, '%Y-%m-%d %H:%M:%S')))[0:10])
# print(miaosha_end_time)
data = {}
# 释放内存, 在外面声明就会占用很大的, 所以此处优化内存的方法是声明后再删除释放
jumeiyoupin_miaosha = JuMeiYouPinParse()
if index % 50 == 0: # 每50次重连一次，避免单次长连无响应报错
print('正在重置，并与数据库建立新连接中...')
tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
print('与数据库的新连接成功建立...')
if tmp_sql_server.is_connect_success:
if self.is_recent_time(miaosha_end_time) == 0:
tmp_sql_server._delete_table(sql_str=self.delete_sql_str, params=(item[0]))
print('过期的goods_id为(%s)' % item[0], ', 限时秒杀结束时间为(%s), 删除成功!' % json.loads(item[1]).get('miaosha_end_time'))
elif self.is_recent_time(miaosha_end_time) == 2:
# break # 跳出循环
pass # 此处应该是pass,而不是break，因为数据库传回的goods_id不都是按照顺序的
else: # 返回1，表示在待更新区间内
print('------>>>| 正在更新的goods_id为(%s) | --------->>>@ 索引值为(%d)' % (item[0], index))
data['goods_id'] = item[0]
this_page_all_goods_list = self.get_one_page_all_goods_list(item[2])
if this_page_all_goods_list == '网络错误!':
print('网络错误!先跳过')
continue
elif this_page_all_goods_list == []:
print('#### 该page对应得到的this_page_all_goods_list为空[]!')
print('** 该商品已被下架限时秒杀活动, 此处将其删除')
tmp_sql_server._delete_table(sql_str=self.delete_sql_str, params=(item[0]))
print('下架的goods_id为(%s)' % item[0], ', 删除成功!')
pass
else:
"""
由于不会内部提前下架，所以在售卖时间内的全部进行相关更新
"""
# miaosha_goods_all_goods_id = [item_1.get('goods_id', '') for item_1 in this_page_all_goods_list]
#
# if item[0] not in miaosha_goods_all_goods_id: # 内部已经下架的
# print('该商品已被下架限时秒杀活动，此处将其删除')
# tmp_sql_server._delete_table(sql_str=self.delete_sql_str, params=(item[0]))
# print('下架的goods_id为(%s)' % item[0], ', 删除成功!')
# pass
#
# else: # 未下架的
tmp_r = jumeiyoupin_miaosha.get_goods_id_from_url(item[3])
jumeiyoupin_miaosha.get_goods_data(goods_id=tmp_r)
goods_data = jumeiyoupin_miaosha.deal_with_data()
if goods_data == {}: # 返回的data为空则跳过
pass
else:
goods_data['goods_id'] = str(item[0])
goods_data['miaosha_time'] = {
'miaosha_begin_time': goods_data['schedule'].get('begin_time', ''),
'miaosha_end_time': goods_data['schedule'].get('end_time', ''),
}
goods_data['miaosha_begin_time'], goods_data['miaosha_end_time'] = get_miaosha_begin_time_and_miaosha_end_time(miaosha_time=goods_data['miaosha_time'])
# print(goods_data)
jumeiyoupin_miaosha.update_jumeiyoupin_xianshimiaosha_table(data=goods_data, pipeline=tmp_sql_server)
sleep(JUMEIYOUPIN_SLEEP_TIME)
else: # 表示返回的data值为空值
print('数据库连接失败，数据库可能关闭或者维护中')
pass
index += 1
gc.collect()
print('全部数据更新完毕'.center(100, '#')) # sleep(60*60)
if get_shanghai_time().hour == 0: # 0点以后不更新
sleep(60 * 60 * 5.5)
else:
sleep(5)
gc.collect()
class JuMeiYouPinSpike(object):
def __init__(self):
self._set_headers()
self.ip_pool_type = IP_POOL_TYPE
def _set_headers(self):
self.headers = {
'Accept': 'application/json,text/javascript,text/plain,*/*;q=0.01',
# 'Accept-Encoding': 'gzip, deflate, br',
'Accept-Language': 'zh-CN,zh;q=0.9',
'Connection': 'keep-alive',
# 'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8',
'Host': 'h5.jumei.com',
'Referer': 'https://h5.jumei.com/',
'Cache-Control': 'max-age=0',
'X-Requested-With': 'XMLHttpRequest',
'User-Agent': get_random_pc_ua(), # 随机一个请求头
}
def get_spike_hour_goods_info(self):
'''
模拟构造得到data的url，得到近期所有的限时秒杀商品信息
:return:
'''
all_goods_list = []
self.my_phantomjs = BaseDriver(executable_path=PHANTOMJS_DRIVER_PATH,
ip_pool_type=self.ip_pool_type)
cookies = self.my_phantomjs.get_url_cookies_from_phantomjs_session(
url='https://h5.jumei.com/')
try:
del self.my_phantomjs
except:
pass
if cookies == '':
print('!!! 获取cookies失败 !!!')
return False
print('获取cookies成功!')
self.headers.update(Cookie=cookies)
print('开始抓取在售商品...')
for page in range(1, 50): # 1, 开始
tmp_url = 'https://h5.jumei.com/index/ajaxDealactList?card_id=4057&page={0}&platform=wap&type=formal&page_key=1521336720'.format(
str(page))
print('正在抓取的page为:', page, ', 接口地址为: ', tmp_url)
json_body = json_2_dict(Requests.get_url_body(
url=tmp_url,
headers=self.headers,
ip_pool_type=self.ip_pool_type),
default_res={})
# print(json_body)
this_page_item_list = json_body.get('item_list', [])
if this_page_item_list == []:
print('@@@@@@ 所有接口数据抓取完毕 !')
break
for item in this_page_item_list:
if item.get('item_id', '') not in [
item_1.get('item_id', '') for item_1 in all_goods_list
]:
item['page'] = page
all_goods_list.append(item)
sleep(.5)
print('开始抓取预售商品...')
for page in range(1, 50): # 1, 开始
tmp_url = 'https://h5.jumei.com/index/ajaxDealactList?card_id=4057&page={0}&platform=wap&type=pre&page_key=1521858480'.format(
str(page))
print('正在抓取的page为:', page, ', 接口地址为: ', tmp_url)
json_body = json_2_dict(Requests.get_url_body(
url=tmp_url,
headers=self.headers,
ip_pool_type=self.ip_pool_type),
default_res={})
# print(json_body)
this_page_item_list = json_body.get('item_list', [])
if this_page_item_list == []:
print('@@@@@@ 所有接口数据抓取完毕 !')
break
for item in this_page_item_list:
if item.get('item_id', '') not in [
item_1.get('item_id', '') for item_1 in all_goods_list
]:
item['page'] = page
all_goods_list.append(item)
sleep(.5)
all_goods_list = [{
'goods_id': str(item.get('item_id', '')),
'type': item.get('type', ''),
'page': item.get('page')
} for item in all_goods_list if item.get('item_id') is not None]
print(all_goods_list)
print('本次抓取到共有限时商品个数为: ', all_goods_list.__len__())
self.deal_with_data(all_goods_list)
return True
def deal_with_data(self, *params):
'''
处理并存储相关秒杀商品数据
:param params: 相关参数
:return:
'''
item_list = params[0]
my_pipeline = SqlServerMyPageInfoSaveItemPipeline()
if my_pipeline.is_connect_success:
_ = list(my_pipeline._select_table(sql_str=jm_select_str_2))
db_goods_id_list = [item[0] for item in _]
# print(db_goods_id_list)
for item in item_list:
if item.get('goods_id', '') in db_goods_id_list:
print('该goods_id已经存在于数据库中, 此处跳过')
pass
else:
jumei = JuMeiYouPinParse()
goods_id = item.get('goods_id', '')
type = item.get('type', '')
tmp_url = 'https://h5.jumei.com/product/detail?item_id={0}&type={1}'.format(
goods_id, type)
jumei.get_goods_data(goods_id=[goods_id, type])
goods_data = jumei.deal_with_data()
if goods_data == {}:
pass
elif goods_data.get('is_delete', 0) == 1:
print('------>>>| 该商品库存为0，已被抢光!')
pass
else: # 否则就解析并且插入
goods_data['goods_url'] = tmp_url
goods_data['goods_id'] = str(goods_id)
goods_data['miaosha_time'] = {
'miaosha_begin_time':
goods_data['schedule'].get('begin_time', ''),
'miaosha_end_time':
goods_data['schedule'].get('end_time', ''),
}
goods_data['miaosha_begin_time'], goods_data[
'miaosha_end_time'] = get_miaosha_begin_time_and_miaosha_end_time(
miaosha_time=goods_data['miaosha_time'])
goods_data['page'] = item.get('page')
# pprint(goods_data)
res = jumei.insert_into_jumeiyoupin_xianshimiaosha_table(
data=goods_data, pipeline=my_pipeline)
if res:
if goods_id not in db_goods_id_list:
db_goods_id_list.append(goods_id)
sleep(JUMEIYOUPIN_SLEEP_TIME
) # 放慢速度 由于初始化用了phantomjs时间久，于是就不睡眠
try:
del jumei
except:
pass
else:
print('数据库连接失败，此处跳过!')
pass
gc.collect()
def __del__(self):
gc.collect()
