def run_forever():
#### 实时更新数据
while True:
# tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
tmp_sql_server = SqlPools() # 使用sqlalchemy管理数据库连接池
tmp_sql_server_2 = SqlServerMyPageInfoSaveItemPipeline()
sql_str = 'select GoodsID, IsDelete, MyShelfAndDownTime from dbo.GoodsInfoAutoGet where SiteID=1'
sql_str_2 = 'select GoodsOutUrl, goods_id from db_k85u.dbo.goodsinfo where OutGoodsType<=13 and onoffshelf=1 and not exists (select maingoodsid from gather.dbo.GoodsInfoAutoGet c where c.maingoodsid=goodsinfo.goods_id)'
try:
# result = list(tmp_sql_server.select_taobao_all_goods_id())
result = tmp_sql_server._select_table(sql_str=sql_str, params=None)
result_2 = list(
tmp_sql_server_2._select_table(sql_str=sql_str_2, params=None))
# print(result_2)
except TypeError:
print('TypeError错误, 原因数据库连接失败...(可能维护中)')
result = None
result_2 = 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_2)
print('--------------------------------------------------------')
print('即将开始实时更新数据, 请耐心等待...'.center(100, '#'))
index = 1
new_table_ali_1688_all_goods_id_list = [item[0] for item in result]
for item in result_2: # 实时更新数据
data = {}
taobao = TaoBaoLoginAndParse()
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...')
# try:
# del tmp_sql_server
# except:
# pass
# gc.collect()
tmp_sql_server_2 = SqlServerMyPageInfoSaveItemPipeline()
tmp_sql_server = SqlPools()
print('与数据库的新连接成功建立...')
if tmp_sql_server.is_connect_success:
goods_id = taobao.get_goods_id_from_url(item[0])
if goods_id == '':
print('@@@ 原商品的地址为: ', item[0])
continue
else:
if goods_id in new_table_ali_1688_all_goods_id_list:
print('该goods_id已经存在于数据库中, 此处跳过!')
continue
else:
print(
'------>>>| 正在更新的goods_id为(%s) | --------->>>@ 索引值为(%d)'
% (goods_id, index))
tt = taobao.get_goods_data(goods_id)
if tt.get('is_delete') == 1: # 处理已下架的但是还是要插入的
tt['goods_id'] = goods_id
tt['goods_url'] = 'https://item.taobao.com/item.htm?id=' + str(
goods_id)
tt['username'] = '******'
tt['main_goods_id'] = item[1]
# print('------>>>| 爬取到的数据为: ', data)
taobao.old_taobao_goods_insert_into_new_table(
data=tt, pipeline=tmp_sql_server_2)
index += 1
gc.collect()
sleep(TAOBAO_REAL_TIMES_SLEEP_TIME)
continue
else:
pass
data = taobao.deal_with_data(goods_id=goods_id)
if data != {}:
data['goods_id'] = goods_id
data[
'goods_url'] = 'https://item.taobao.com/item.htm?id=' + str(
goods_id)
data['username'] = '******'
data['main_goods_id'] = item[1]
# print('------>>>| 爬取到的数据为: ', data)
taobao.old_taobao_goods_insert_into_new_table(
data, pipeline=tmp_sql_server_2)
else:
pass
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
# try:
# del taobao
# except:
# pass
gc.collect()
# 国外服务器上可以缩短时间, 可以设置为0s
sleep(TAOBAO_REAL_TIMES_SLEEP_TIME) # 不能太频繁，与用户请求错开尽量
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 TBUpdater(AsyncCrawler):
def __init__(self, *params, **kwargs):
AsyncCrawler.__init__(
self,
*params,
**kwargs,
log_print=True,
log_save_path=MY_SPIDER_LOGS_PATH + '/淘宝/实时更新/')
self.sql_cli = None
# 1 SqlServerMyPageInfoSaveItemPipeline | 2 SqlPools
self.db_conn_type = 1
self.goods_index = 1
# 并发量
self.concurrency = 100
self.concurrent_type = CONCURRENT_TYPE
# 0 sqlserver | 1 new_my_server | 2 redis
self.db_res_from = 2
if 'armv7l-with-debian' in platform.platform():
self.server_ip = 'http://0.0.0.0:80'
else:
self.server_ip = 'http://118.31.39.97'
# self.server_ip = 'http://0.0.0.0:5000'
async def _update_db(self):
'''
实时更新数据
:return:
'''
while True:
# 长期运行报: OSError: [Errno 24] Too many open files, 故不采用每日一志
# self.lg = await self._get_new_logger(logger_name=get_uuid1())
result = await self._get_db_old_data()
if result is None:
pass
else:
self.goods_index = 1
tasks_params_list = TasksParamsListObj(tasks_params_list=result, step=self.concurrency)
self.taobao = TaoBaoLoginAndParse(logger=self.lg, is_real_times_update_call=True)
index = 1
while True:
try:
slice_params_list = tasks_params_list.__next__()
except AssertionError:
break
one_res, index = await self._get_one_res(
slice_params_list=slice_params_list,
index=index)
await self._except_sleep(res=one_res)
self.lg.info('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
await async_sleep(60 * 60 * .5)
else:
await async_sleep(5.)
try:
# del self.lg
del result
except:
pass
collect()
async def _get_db_old_data(self) -> (list, None):
'''
获取db需求更新的数据
:return:
'''
if self.db_conn_type == 1:
self.sql_cli = SqlServerMyPageInfoSaveItemPipeline()
elif self.db_conn_type == 2:
# 使用sqlalchemy管理数据库连接池
self.sql_cli = SqlPools()
else:
raise ValueError('db_conn_type 值异常!')
result = None
try:
if self.db_res_from == 0:
result = self.sql_cli._select_table(sql_str=tb_select_str_3,)
elif self.db_res_from == 1:
result = await get_waited_2_update_db_data_from_server(
server_ip=self.server_ip,
_type='tb',
child_type=0,)
elif self.db_res_from == 2:
# 默认拿300个, 避免前100个失败率较高的情况下, 后面能继续更新
result = get_waited_2_update_db_data_from_redis_server(
spider_name='tb0',
logger=self.lg,
slice_num=800,)
else:
raise ValueError('self.db_res_from value异常!')
except TypeError:
self.lg.error('TypeError错误, 原因数据库连接失败...(可能维护中)')
except Exception:
self.lg.error('遇到错误:', exc_info=True)
await _print_db_old_data(logger=self.lg, result=result)
return result
async def _get_one_res(self, slice_params_list: list, index) -> tuple:
"""
获取slice_params_list对应的one_res
:param slice_params_list:
:param index:
:return: (list, int)
"""
def get_tasks_params_list(slice_params_list: list, index: int) -> list:
tasks_params_list = []
for item in slice_params_list:
db_goods_info_obj = TBDbGoodsInfoObj(item=item, logger=self.lg)
tasks_params_list.append({
'db_goods_info_obj': db_goods_info_obj,
'index': index,
})
index += 1
return tasks_params_list
def get_create_task_msg(k) -> str:
return 'create task[where is goods_id: {}, index: {}] ...'.format(
k['db_goods_info_obj'].goods_id,
k['index'],)
def get_now_args(k) -> list:
return [
'tb',
k['db_goods_info_obj'].goods_id,
k['index'],
self.lg,
]
async def handle_one_res(one_res: list):
"""
one_res后续处理
:param one_res:
:return:
"""
nonlocal slice_params_list
# 获取新new_slice_params_list
new_slice_params_list = []
for item in slice_params_list:
goods_id = item[1]
for i in one_res:
# self.lg.info(str(i))
try:
goods_id2 = i[1]
index = i[2]
if goods_id == goods_id2:
new_slice_params_list.append({
'index': index,
'before_goods_data': i[3],
'end_goods_data': i[4],
'item': item,
})
break
else:
continue
except IndexError:
continue
# 阻塞方式进行存储, 避免db高并发导致大量死锁
tasks = []
for k in new_slice_params_list:
item = k['item']
index = k['index']
db_goods_info_obj = TBDbGoodsInfoObj(item=item, logger=self.lg)
self.lg.info('create task[where is goods_id: {}, index: {}]...'.format(
db_goods_info_obj.goods_id,
index))
tasks.append(self.loop.create_task(self._update_one_goods_info_in_db(
db_goods_info_obj=db_goods_info_obj,
index=index,
before_goods_data=k['before_goods_data'],
end_goods_data=k['end_goods_data'],)))
# self.lg.error(str(one_res))
# self.lg.error(str(tasks))
one_res = await _get_async_task_result(
tasks=tasks,
logger=self.lg)
# pprint(one_res)
try:
del new_slice_params_list
except:
pass
return one_res
# tasks = []
# # method 1
# for item in slice_params_list:
# db_goods_info_obj = TBDbGoodsInfoObj(item=item, logger=self.lg)
# self.lg.info('创建 task goods_id: {}'.format(db_goods_info_obj.goods_id))
# tasks.append(self.loop.create_task(self._update_one_goods_info(
# db_goods_info_obj=db_goods_info_obj,
# index=index)))
# index += 1
#
# res = await _get_async_task_result(tasks=tasks, logger=self.lg)
# method 2
one_res = await get_or_handle_target_data_by_task_params_list(
loop=self.loop,
tasks_params_list=get_tasks_params_list(
slice_params_list=slice_params_list,
index=index,),
func_name_where_get_create_task_msg=get_create_task_msg,
func_name=block_get_one_goods_info_task_by_external_type,
func_name_where_get_now_args=get_now_args,
func_name_where_handle_one_res=None,
func_name_where_add_one_res_2_all_res=default_add_one_res_2_all_res2,
one_default_res=(),
step=self.concurrency,
logger=self.lg,
get_all_res=True,
concurrent_type=self.concurrent_type,
)
# pprint(one_res)
res = await handle_one_res(one_res=one_res)
return (res, index)
async def _update_one_goods_info_in_db(self,
db_goods_info_obj,
index,
before_goods_data,
end_goods_data):
"""
更新单个goods
:param db_goods_info_obj:
:param index:
:param before_goods_data:
:param end_goods_data:
:return:
"""
res = False
self.sql_cli = await _get_new_db_conn(
db_obj=self.sql_cli,
index=index,
logger=self.lg,
db_conn_type=self.db_conn_type,
remainder=25,)
if self.sql_cli.is_connect_success:
self.lg.info('*' * 20 + ' updating goods_id: {}, index: {} ...'.format(
db_goods_info_obj.goods_id,
index, ))
# 避免下面解析data错误休眠
before_goods_data_is_delete = before_goods_data.get('is_delete', 0)
if end_goods_data != {}:
data = get_goods_info_change_data(
target_short_name='tb',
logger=self.lg,
data=end_goods_data,
db_goods_info_obj=db_goods_info_obj, )
res = to_right_and_update_tb_data(
data=data,
pipeline=self.sql_cli,
logger=self.lg,)
else: # 表示返回的data值为空值
if before_goods_data_is_delete == 1:
# 检索后下架状态的, res也设置为True
res = True
else:
self.lg.info('goods_id: {}, 阻塞休眠7s中...'.format(
db_goods_info_obj.goods_id,))
await async_sleep(delay=7., loop=self.loop)
# 改为阻塞进程, 机器会挂
# sleep(7.)
else:
self.lg.error('数据库连接失败，数据库可能关闭或者维护中')
await async_sleep(delay=5, loop=self.loop)
await async_sleep(TAOBAO_REAL_TIMES_SLEEP_TIME)
collect()
return [db_goods_info_obj.goods_id, res]
async def _get_new_tb_obj(self, index) -> None:
if index % 10 == 0:
try:
del self.taobao
except:
pass
collect()
self.taobao = TaoBaoLoginAndParse(logger=self.lg, is_real_times_update_call=True)
async def _update_one_goods_info(self, db_goods_info_obj, index):
'''
更新单个goods
:return:
'''
res = False
await self._get_new_tb_obj(index=index)
self.sql_cli = await _get_new_db_conn(
db_obj=self.sql_cli,
index=index,
logger=self.lg,
db_conn_type=self.db_conn_type,
remainder=25,)
if self.sql_cli.is_connect_success:
self.lg.info('------>>>| 正在更新的goods_id为(%s) | --------->>>@ 索引值为(%s)' % (
db_goods_info_obj.goods_id,
str(index)))
oo = self.taobao.get_goods_data(goods_id=db_goods_info_obj.goods_id)
oo_is_delete = oo.get('is_delete', 0) # 避免下面解析data错误休眠
data = self.taobao.deal_with_data(goods_id=db_goods_info_obj.goods_id)
if data != {}:
data = get_goods_info_change_data(
target_short_name='tb',
logger=self.lg,
data = data,
db_goods_info_obj=db_goods_info_obj,)
res = to_right_and_update_tb_data(
data=data,
pipeline=self.sql_cli,
logger=self.lg)
else:
if oo_is_delete == 1:
# 检索后下架状态的, res也设置为True
res = True
else:
self.lg.info('------>>>| 休眠8s中...')
await async_sleep(delay=8, loop=self.loop)
else: # 表示返回的data值为空值
self.lg.error('数据库连接失败，数据库可能关闭或者维护中')
await async_sleep(delay=10, loop=self.loop)
index += 1
self.goods_index = index
collect()
# 国外服务器上可以缩短时间, 可以设置为0s
await async_sleep(TAOBAO_REAL_TIMES_SLEEP_TIME) # 不能太频繁，与用户请求错开尽量
return [db_goods_info_obj.goods_id, res]
async def _except_sleep(self, res):
'''
异常休眠
:param res:
:return:
'''
count = 0
all_count_fail_sleep_time = 100.
# 本来休眠40., 现在不休眠
sleep_time = 0.
for item in res:
try:
if not item[1]:
count += 1
except IndexError:
pass
self.lg.info('Fail count: {}个, 并发量: {}个'.format(count, self.concurrency))
if count/self.concurrency >= .96:
# 全失败的休眠方式
self.lg.info('抓取异常!! 休眠{}s中...'.format(all_count_fail_sleep_time))
await async_sleep(all_count_fail_sleep_time)
else:
if count >= int(self.concurrency/5):
self.lg.info('抓取异常!! 休眠{}s中...'.format(sleep_time))
await async_sleep(sleep_time)
return None
def __del__(self):
try:
del self.lg
except:
pass
try:
del self.sql_cli
except:
pass
try:
del self.loop
except:
pass
collect()
def run_forever():
#### 实时更新数据
while True:
# ** 不能写成全局变量并放在循环中, 否则会一直记录到同一文件中
my_lg = set_logger(log_file_name=MY_SPIDER_LOGS_PATH + '/淘宝/实时更新/' +
str(get_shanghai_time())[0:10] + '.txt',
console_log_level=INFO,
file_log_level=ERROR)
sql_str = '''
select GoodsID, IsDelete, Price, TaoBaoPrice, shelf_time, delete_time
from dbo.GoodsInfoAutoGet
where SiteID=1 and MainGoodsID is not null
order by ID desc'''
# tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
tmp_sql_server = SqlPools() # 使用sqlalchemy管理数据库连接池
try:
# result = list(tmp_sql_server.select_taobao_all_goods_id())
result = tmp_sql_server._select_table(sql_str=sql_str, )
except TypeError:
my_lg.error('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:
my_lg.info('------>>> 下面是数据库返回的所有符合条件的goods_id <<<------')
my_lg.info(str(result))
my_lg.info(
'--------------------------------------------------------')
my_lg.info('总计待更新个数: {0}'.format(len(result)))
my_lg.info('即将开始实时更新数据, 请耐心等待...'.center(100, '#'))
index = 1
for item in result: # 实时更新数据
taobao = TaoBaoLoginAndParse(logger=my_lg)
if index % 50 == 0: # 每50次重连一次，避免单次长连无响应报错
my_lg.info('正在重置，并与数据库建立新连接中...')
tmp_sql_server = SqlPools()
my_lg.info('与数据库的新连接成功建立...')
if tmp_sql_server.is_connect_success:
my_lg.info(
'------>>>| 正在更新的goods_id为(%s) | --------->>>@ 索引值为(%s)'
% (item[0], str(index)))
data = taobao.get_goods_data(item[0])
if data.get('is_delete') == 1: # 单独处理【原先插入】就是 下架状态的商品
data['goods_id'] = item[0]
data['shelf_time'], data[
'delete_time'] = get_shelf_time_and_delete_time(
tmp_data=data,
is_delete=item[1],
shelf_time=item[4],
delete_time=item[5])
# my_lg.info('------>>>| 爬取到的数据为: ' + str(data))
taobao.to_right_and_update_data(
data, pipeline=tmp_sql_server)
sleep(TAOBAO_REAL_TIMES_SLEEP_TIME) # 避免服务器更新太频繁
index += 1
gc.collect()
continue
data = taobao.deal_with_data(goods_id=item[0])
if data != {}:
data['goods_id'] = item[0]
data['shelf_time'], data[
'delete_time'] = get_shelf_time_and_delete_time(
tmp_data=data,
is_delete=item[1],
shelf_time=item[4],
delete_time=item[5])
data['_is_price_change'], data[
'_price_change_info'] = _get_price_change_info(
old_price=item[2],
old_taobao_price=item[3],
new_price=data['price'],
new_taobao_price=data['taobao_price'])
# my_lg.info('------>>>| 爬取到的数据为: ' + str(data))
taobao.to_right_and_update_data(
data, pipeline=tmp_sql_server)
else:
my_lg.info('------>>>| 休眠5s中...')
sleep(5)
else: # 表示返回的data值为空值
my_lg.error('数据库连接失败，数据库可能关闭或者维护中')
sleep(10)
pass
index += 1
# try:
# del taobao
# except:
# pass
gc.collect()
# 国外服务器上可以缩短时间, 可以设置为0s
sleep(TAOBAO_REAL_TIMES_SLEEP_TIME) # 不能太频繁，与用户请求错开尽量
my_lg.info('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()
restart_program()
class CommonGoodsRealTimeUpdater(AsyncCrawler):
"""常规商品实时更新"""
def __init__(self):
self.goods_spider_type = GOODS_SPIDER_NAME
assert self.goods_spider_type is not None
assert self.goods_spider_type in ('tb', 'tm'), \
'self.goods_spider_type value异常!'
AsyncCrawler.__init__(
self,
log_print=True,
log_save_path=self.get_log_save_path(),
)
self.set_concurrency()
self.crawl_type = CRAWL_TYPE_ASYNCIO
self.concurrent_type = CONCURRENT_TYPE
self.db_res_from = DB_RES_FROM
self.db_conn_type = DB_CONN_TYPE
self.sql_cli = None
self.set_sql_cli()
assert self.db_res_from in (0, 1, 2,), \
'self.db_res_from value异常!'
self.db_data_slice_num = 800
self.is_real_times_update_call = True
if 'armv7l-with-debian' in platform.platform():
self.server_ip = 'http://0.0.0.0:80'
else:
self.server_ip = 'http://118.31.39.97'
# self.server_ip = 'http://0.0.0.0:5000'
def get_log_save_path(self) -> str:
if self.goods_spider_type == 'tm':
return MY_SPIDER_LOGS_PATH + '/天猫/实时更新/'
elif self.goods_spider_type == 'tb':
return MY_SPIDER_LOGS_PATH + '/淘宝/实时更新/'
else:
raise NotImplemented
def set_concurrency(self) -> None:
"""
设置并发量, log_save_path
:return:
"""
if self.goods_spider_type == 'tm':
self.concurrency = 100
elif self.goods_spider_type == 'tb':
self.concurrency = 100
else:
raise NotImplemented
def set_sql_cli(self):
"""
设置连接类型
:return:
"""
if self.db_conn_type == 1:
# 推荐
self.sql_cli = SqlServerMyPageInfoSaveItemPipeline()
elif self.db_conn_type == 2:
# 使用sqlalchemy管理数据库连接池
self.sql_cli = SqlPools()
else:
raise ValueError('db_conn_type 值异常!')
async def _update_db(self):
while True:
# 长期运行报: OSError: [Errno 24] Too many open files, 故不采用每日一志
# self.lg = await self._get_new_logger(logger_name=get_uuid1())
result = await self._get_db_old_data()
if result is None:
pass
else:
tasks_params_list = TasksParamsListObj(
tasks_params_list=result, step=self.concurrency)
index = 1
while True:
try:
slice_params_list = tasks_params_list.__next__()
except AssertionError:
break
one_res, index = await self._get_one_res(
slice_params_list=slice_params_list, index=index)
await self._except_sleep(res=one_res)
self.lg.info('全部数据更新完毕'.center(100, '#'))
if get_shanghai_time().hour == 0:
# 0点以后不更新
await async_sleep(60 * 60 * .5)
else:
await async_sleep(5.)
try:
# del self.lg
del result
except Exception:
pass
collect()
async def _get_db_old_data(self) -> (list, None):
"""
获取db需求更新的数据
:return:
"""
result = None
try:
if self.db_res_from == 0:
if self.goods_spider_type == 'tm':
sql_str = tm_select_str_3
elif self.goods_spider_type == 'tb':
sql_str = tb_select_str_3
else:
raise NotImplemented
result = list(
self.sql_cli._select_table(
sql_str=sql_str,
logger=self.lg,
))
elif self.db_res_from == 1:
result = await get_waited_2_update_db_data_from_server(
server_ip=self.server_ip,
_type=self.goods_spider_type,
child_type=0,
)
else:
# 默认拿300个, 避免前100个失败率较高的情况下, 后面能继续更新
result = get_waited_2_update_db_data_from_redis_server(
# eg: 'tm0'
spider_name=self.goods_spider_type + '0',
logger=self.lg,
slice_num=self.db_data_slice_num,
)
except TypeError:
self.lg.error('TypeError错误, 原因数据库连接失败...(可能维护中)')
await _print_db_old_data(logger=self.lg, result=result)
return result
async def _get_one_res(self, slice_params_list, index) -> tuple:
"""
获取slice_params_list对应的one_res
:param slice_params_list:
:param index:
:return: (list, int)
"""
if self.crawl_type == CRAWL_TYPE_ASYNCIO:
"""asyncio"""
if self.goods_spider_type == 'tm':
tasks_params_list = self.get_tm_tasks_params_list(
slice_params_list=slice_params_list,
index=index,
)
func_name_where_get_create_task_msg = self.get_tm_create_task_msg
func_name_where_get_now_args = self.get_tm_now_args
elif self.goods_spider_type == 'tb':
tasks_params_list = self.get_tb_tasks_params_list(
slice_params_list=slice_params_list,
index=index,
)
func_name_where_get_create_task_msg = self.get_tb_create_task_msg
func_name_where_get_now_args = self.get_tb_now_args
else:
raise NotImplemented
# pprint(tasks_params_list)
one_res = await get_or_handle_target_data_by_task_params_list(
loop=self.loop,
tasks_params_list=tasks_params_list,
func_name_where_get_create_task_msg=
func_name_where_get_create_task_msg,
func_name=block_get_one_goods_info_task_by_external_type,
func_name_where_get_now_args=func_name_where_get_now_args,
func_name_where_handle_one_res=None,
func_name_where_add_one_res_2_all_res=
default_add_one_res_2_all_res2,
one_default_res=(),
step=self.concurrency,
logger=self.lg,
get_all_res=True,
concurrent_type=self.concurrent_type,
)
# pprint(one_res)
elif self.crawl_type == CRAWL_TYPE_CELERY:
"""celery"""
tasks = []
if self.goods_spider_type == 'tm':
for item in slice_params_list:
index += 1
db_goods_info_obj = TMDbGoodsInfoObj(item=item,
logger=self.lg)
self.lg.info('创建 task goods_id: {}'.format(
db_goods_info_obj.goods_id))
tmp_item = self.get_tm_tmp_item(
site_id=db_goods_info_obj.site_id,
goods_id=db_goods_info_obj.goods_id,
)
try:
async_obj = await self.create_tm_celery_obj(
goods_id=tmp_item,
index=index,
)
tasks.append(async_obj)
except Exception:
continue
one_res = await _get_celery_async_results(tasks=tasks)
else:
raise NotImplemented
else:
raise NotImplemented
res = await handle_real_times_goods_one_res(
# eg: 'tm', 'tb'
goods_type=self.goods_spider_type,
loop=self.loop,
func_name_where_update_one_goods_info_in_db=self.
_update_one_goods_info_in_db,
slice_params_list=slice_params_list,
one_res=one_res,
logger=self.lg,
)
try:
del slice_params_list
except:
pass
return (res, index)
def get_tm_tasks_params_list(self, slice_params_list: list,
index: int) -> list:
tasks_params_list = []
for item in slice_params_list:
try:
db_goods_info_obj = TMDbGoodsInfoObj(item=item, logger=self.lg)
tmp_item = self.get_tm_tmp_item(
site_id=db_goods_info_obj.site_id,
goods_id=db_goods_info_obj.goods_id,
)
tasks_params_list.append({
'db_goods_info_obj': db_goods_info_obj,
'index': index,
'tmp_item': tmp_item,
})
index += 1
except Exception:
self.lg.error('遇到错误[goods_id: {}]:', exc_info=True)
continue
return tasks_params_list
def get_tb_tasks_params_list(self, slice_params_list: list,
index: int) -> list:
tasks_params_list = []
for item in slice_params_list:
try:
db_goods_info_obj = TBDbGoodsInfoObj(item=item, logger=self.lg)
tasks_params_list.append({
'db_goods_info_obj': db_goods_info_obj,
'index': index,
})
index += 1
except Exception:
self.lg.error('遇到错误[goods_id: {}]:', exc_info=True)
continue
return tasks_params_list
@staticmethod
def get_tm_create_task_msg(k) -> str:
return 'create task[where is goods_id: {}, index: {}] ...'.format(
k['db_goods_info_obj'].goods_id,
k['index'],
)
@staticmethod
def get_tb_create_task_msg(k) -> str:
return 'create task[where is goods_id: {}, index: {}] ...'.format(
k['db_goods_info_obj'].goods_id,
k['index'],
)
def get_tm_now_args(self, k) -> list:
return [
'tm',
k['tmp_item'],
k['index'],
self.lg,
]
def get_tb_now_args(self, k) -> list:
return [
'tb',
k['db_goods_info_obj'].goods_id,
k['index'],
self.lg,
]
async def _update_one_goods_info_in_db(self, db_goods_info_obj, index,
before_goods_data,
end_goods_data) -> (list, tuple):
"""
更新单个goods
:param db_goods_info_obj:
:param index:
:param before_goods_data:
:param end_goods_data:
:return:
"""
res = False
self.sql_cli = await _get_new_db_conn(db_obj=self.sql_cli,
index=index,
logger=self.lg,
db_conn_type=self.db_conn_type,
remainder=25)
if self.sql_cli.is_connect_success:
self.lg.info('*' * 20 +
' updating goods_id: {}, index: {} ...'.format(
db_goods_info_obj.goods_id,
index,
))
# 避免下面解析data错误休眠
before_goods_data_is_delete = before_goods_data.get('is_delete', 0)
if end_goods_data != {}:
data = get_goods_info_change_data(
# eg: 'tm', 'tb'
target_short_name=self.goods_spider_type,
logger=self.lg,
data=end_goods_data,
db_goods_info_obj=db_goods_info_obj,
sql_cli=self.sql_cli,
)
res = to_right_and_update_data_by_goods_type(
goods_type=self.goods_spider_type,
data=data,
pipeline=self.sql_cli,
logger=self.lg,
)
else: # 表示返回的data值为空值
if before_goods_data_is_delete == 1:
# 检索后下架状态的, res也设置为True
res = True
else:
self.lg.info('goods_id: {}, 阻塞休眠7s中...'.format(
db_goods_info_obj.goods_id, ))
await async_sleep(delay=7., loop=self.loop)
# 改为阻塞进程, 机器会挂
# sleep(7.)
else:
self.lg.error('数据库连接失败，数据库可能关闭或者维护中')
await async_sleep(delay=8, loop=self.loop)
collect()
return [db_goods_info_obj.goods_id, res]
async def create_tm_celery_obj(self, **kwargs):
"""
创建celery obj
:param kwargs:
:return:
"""
goods_id = kwargs.get('goods_id', [])
index = kwargs['index']
async_obj = _get_tm_one_goods_info_task.apply_async(
args=[
goods_id,
index,
],
expires=5 * 60,
retry=False,
)
return async_obj
@staticmethod
def get_tm_tmp_item(site_id, goods_id):
tmp_item = []
# 从数据库中取出时，先转换为对应的类型
if site_id == 3:
tmp_item.append(0)
elif site_id == 4:
tmp_item.append(1)
elif site_id == 6:
tmp_item.append(2)
tmp_item.append(goods_id)
return tmp_item
@staticmethod
def get_jd_tmp_item(site_id, goods_id):
tmp_item = []
# 从数据库中取出时，先转换为对应的类型
if site_id == 7 \
or site_id == 8:
tmp_item.append(0)
elif site_id == 9:
tmp_item.append(1)
elif site_id == 10:
tmp_item.append(2)
tmp_item.append(goods_id)
return tmp_item
async def _except_sleep(self, res):
"""
异常休眠
:param res:
:return:
"""
count = 0
all_count_fail_sleep_time = 100.
# 本来是40., 此处不休眠
sleep_time = 0.
# pprint(res)
for item in res:
try:
if not item[1]:
count += 1
except IndexError:
pass
self.lg.info('Fail count: {}个, 并发量: {}个'.format(
count, self.concurrency))
if count / self.concurrency >= .96:
# 全失败的休眠方式
self.lg.info('抓取异常!! 休眠{}s中...'.format(all_count_fail_sleep_time))
await async_sleep(all_count_fail_sleep_time)
else:
if count >= int(self.concurrency / 5):
self.lg.info('抓取异常!! 休眠{}s中...'.format(sleep_time))
await async_sleep(sleep_time)
return None
def __del__(self):
try:
del self.lg
except:
pass
try:
del self.sql_cli
except:
pass
try:
del self.loop
except:
pass
collect()
def run_forever():
#### 实时更新数据
while True:
# ** 不能写成全局变量并放在循环中, 否则会一直记录到同一文件中
my_lg = set_logger(log_file_name=MY_SPIDER_LOGS_PATH + '/淘宝/实时更新/' +
str(get_shanghai_time())[0:10] + '.txt',
console_log_level=INFO,
file_log_level=ERROR)
# tmp_sql_server = SqlServerMyPageInfoSaveItemPipeline()
tmp_sql_server = SqlPools() # 使用sqlalchemy管理数据库连接池
try:
# result = list(tmp_sql_server.select_taobao_all_goods_id())
result = tmp_sql_server._select_table(sql_str=tb_select_str_3, )
except TypeError:
my_lg.error('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:
my_lg.info('------>>> 下面是数据库返回的所有符合条件的goods_id <<<------')
my_lg.info(str(result))
my_lg.info(
'--------------------------------------------------------')
my_lg.info('总计待更新个数: {0}'.format(len(result)))
my_lg.info('即将开始实时更新数据, 请耐心等待...'.center(100, '#'))
index = 1
for item in result: # 实时更新数据
taobao = TaoBaoLoginAndParse(logger=my_lg)
if index % 50 == 0: # 每50次重连一次，避免单次长连无响应报错
my_lg.info('正在重置，并与数据库建立新连接中...')
tmp_sql_server = SqlPools()
my_lg.info('与数据库的新连接成功建立...')
if tmp_sql_server.is_connect_success:
my_lg.info(
'------>>>| 正在更新的goods_id为(%s) | --------->>>@ 索引值为(%s)'
% (item[0], str(index)))
oo = taobao.get_goods_data(item[0])
oo_is_delete = oo.get('is_delete', 0) # 避免下面解析data错误休眠
data = taobao.deal_with_data(goods_id=item[0])
if data != {}:
data['goods_id'] = item[0]
data['shelf_time'], data[
'delete_time'] = get_shelf_time_and_delete_time(
tmp_data=data,
is_delete=item[1],
shelf_time=item[4],
delete_time=item[5])
data['_is_price_change'], data[
'_price_change_info'] = _get_price_change_info(
old_price=item[2],
old_taobao_price=item[3],
new_price=data['price'],
new_taobao_price=data['taobao_price'])
try:
old_sku_info = format_price_info_list(
price_info_list=json_2_dict(item[6]),
site_id=1)
except AttributeError: # 处理已被格式化过的
old_sku_info = item[6]
data['_is_price_change'], data[
'sku_info_trans_time'] = get_sku_info_trans_record(
old_sku_info=old_sku_info,
new_sku_info=format_price_info_list(
data['price_info_list'], site_id=1),
is_price_change=item[7]
if item[7] is not None else 0)
taobao.to_right_and_update_data(
data, pipeline=tmp_sql_server)
else:
if oo_is_delete == 1:
pass
else:
my_lg.info('------>>>| 休眠5s中...')
sleep(4)
else: # 表示返回的data值为空值
my_lg.error('数据库连接失败，数据库可能关闭或者维护中')
sleep(10)
pass
index += 1
gc.collect()
# 国外服务器上可以缩短时间, 可以设置为0s
sleep(TAOBAO_REAL_TIMES_SLEEP_TIME) # 不能太频繁，与用户请求错开尽量
my_lg.info('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()
restart_program()