def run_forever(self):
'''
这个实时更新的想法是只更新当天未来2小时的上架商品的信息，再未来信息价格(全为原价)暂不更新
:return:
'''
#### 实时更新数据
tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
try:
result = list(
tmp_sql_server.select_pinduoduo_xianshimiaosha_all_goods_id())
except TypeError as e:
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
# 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
pinduoduo_miaosha = PinduoduoParse()
all_miaosha_goods_list = self.get_all_miaosha_goods_list()
# 其中所有goods_id的list
miaosha_goods_all_goods_id = [
i.get('goods_id') for i in all_miaosha_goods_list
]
# print(miaosha_goods_all_goods_id)
for item in result: # 实时更新数据
# 对于拼多多先拿到该商品的结束时间点
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)
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_pinduoduo_expired_goods_id(
goods_id=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:
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))
if item[0] not in miaosha_goods_all_goods_id: # 内部已经下架的
'''
表示其中没有了该goods_id
'''
tmp_sql_server.delete_pinduoduo_expired_goods_id(
goods_id=item[0])
print('该商品[goods_id为(%s)]已被下架限时秒杀活动，此处将其删除' %
item[0])
pass
else: # 未下架的
for item_1 in all_miaosha_goods_list:
if item_1.get('goods_id', '') == item[0]:
# # 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
# pinduoduo_miaosha = PinduoduoParse()
pinduoduo_miaosha.get_goods_data(
goods_id=item[0])
goods_data = pinduoduo_miaosha.deal_with_data(
)
if goods_data == {}: # 返回的data为空则跳过
# sleep(3)
pass
else: # 否则就解析并且插入
goods_data['stock_info'] = item_1.get(
'stock_info')
goods_data['goods_id'] = item_1.get(
'goods_id')
if item_1.get('stock_info').get(
'activity_stock') > 0:
goods_data['price'] = item_1.get(
'price') # 秒杀前的原特价
goods_data[
'taobao_price'] = item_1.get(
'taobao_price') # 秒杀价
else:
pass
goods_data['sub_title'] = item_1.get(
'sub_title', '')
goods_data[
'miaosha_time'] = item_1.get(
'miaosha_time')
goods_data[
'miaosha_begin_time'], goods_data[
'miaosha_end_time'] = self.get_miaosha_begin_time_and_miaosha_end_time(
miaosha_time=item_1.get(
'miaosha_time'))
if item_1.get('stock_info').get(
'activity_stock') <= 1:
# 实时秒杀库存小于等于1时就标记为 已售罄
print('该秒杀商品已售罄...')
goods_data['is_delete'] = 1
# print(goods_data)
pinduoduo_miaosha.to_update_pinduoduo_xianshimiaosha_table(
data=goods_data,
pipeline=tmp_sql_server)
sleep(PINDUODUO_SLEEP_TIME)
else:
pass
index += 1
gc.collect()
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
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(3)
# del ali_1688
gc.collect()
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_miaosha_goods_list = self.get_all_miaosha_goods_list()
try:
self.driver.quit()
except:
pass
gc.collect()
pinduoduo = PinduoduoParse()
my_pipeline = SqlServerMyPageInfoSaveItemPipeline()
if my_pipeline.is_connect_success:
if my_pipeline.select_pinduoduo_xianshimiaosha_all_goods_id(
) is None:
db_goods_id_list = []
else:
db_goods_id_list = [
item[0] for item in
list(my_pipeline.
select_pinduoduo_xianshimiaosha_all_goods_id())
]
for item in all_miaosha_goods_list:
'''
注意: 明日8点半抓取到的是页面加载中返回的是空值
'''
if item.get('goods_id') != 'None': # 跳过goods_id为'None'
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:
tmp_url = 'http://mobile.yangkeduo.com/goods.html?goods_id=' + item.get(
'goods_id')
pinduoduo.get_goods_data(goods_id=item.get('goods_id'))
goods_data = pinduoduo.deal_with_data()
# print(goods_data)
if goods_data == {}: # 返回的data为空则跳过
print('得到的goods_data为空值，此处先跳过，下次遍历再进行处理')
pass
else: # 否则就解析并插入
goods_data['stock_info'] = item.get('stock_info')
goods_data['goods_id'] = item.get('goods_id')
goods_data['spider_url'] = tmp_url
goods_data['username'] = '******'
goods_data['price'] = item.get('price') # 秒杀前的原特价
goods_data['taobao_price'] = item.get(
'taobao_price') # 秒杀价
goods_data['sub_title'] = item.get('sub_title', '')
goods_data['miaosha_time'] = item.get(
'miaosha_time')
if item.get('stock_info').get(
'activity_stock') <= 2:
# 实时秒杀库存小于等于2时就标记为 已售罄
print('该秒杀商品已售罄...')
goods_data['is_delete'] = 1
pinduoduo.insert_into_pinduoduo_xianshimiaosha_table(
data=goods_data, pipeline=my_pipeline)
sleep(.9)
else:
print('该goods_id为"None", 此处跳过')
pass
sleep(5)
else:
pass
try:
del pinduoduo
except:
pass
gc.collect()
