class Spider(threading.Thread):
def __init__(self,
tab_list,
tab_unique_key_list,
tab_ensure_index_list,
parser_count=None,
site_parsers=None,
parser_params={},
begin_callback=None,
end_callback=None):
'''
@summary:
---------
@param tab_urls: url表名
@param tab_site: 网站表名
@param parser_count: parser 的线程数，为空时以配置文件为准
@param parser_params : 解析器所用的参数
@param begin_callback: 爬虫开始的回调
@param end_callback: 爬虫结束的回调
---------
@result:
'''
super(Spider, self).__init__()
self._tab_urls = tab_list[0]
self._site_parsers = site_parsers
self._db = MongoDB()
for tab_index in range(len(tab_list)):
self._db.set_unique_key(tab_list[tab_index],
tab_unique_key_list[tab_index])
# 设置索引 加快查询速度
for ensure_index in tab_ensure_index_list[tab_index]:
self._db.set_ensure_index(tab_list[tab_index], ensure_index)
self._collector = Collector(self._tab_urls, self._site_parsers)
self._parsers = []
self._parser_params = parser_params
self._begin_callback = begin_callback
self._end_callabck = end_callback
self._parser_count = int(
tools.get_conf_value(
'config.conf', 'parser',
'parser_count')) if not parser_count else parser_count
self._spider_site_name = tools.get_conf_value(
'config.conf', "spider_site", "spider_site_name").split(',')
self._except_site_name = tools.get_conf_value(
'config.conf', "spider_site", "except_site_name").split(',')
def add_parser(self, parser):
if self._spider_site_name[0] == 'all':
for except_site_name in self._except_site_name:
if parser.NAME != except_site_name.strip():
self._parsers.append(parser)
else:
for spider_site_name in self._spider_site_name:
if parser.NAME == spider_site_name.strip():
self._parsers.append(parser)
def run(self):
self.__start()
def __start(self):
if self._begin_callback:
self._begin_callback()
if not self._parsers:
if self._end_callabck:
self._end_callabck()
return
# 启动parser 的add site 和 add root
# print(self._parser_params)
for parser in self._parsers:
parser.add_site_info()
parser.add_root_url(self._parser_params)
print('添加跟url完毕')
# 启动collector
self._collector.add_finished_callback(self._end_callabck)
self._collector.start()
# 启动parser control
while self._parser_count:
parser_control = PaserControl(self._collector, self._tab_urls)
for parser in self._parsers:
parser_control.add_parser(parser)
parser_control.start()
self._parser_count -= 1
class Spider(threading.Thread):
def __init__(self,
tab_urls,
tab_site,
tab_content,
parser_count=None,
parser_params={},
begin_callback=None,
end_callback=None,
content_unique_key='url'):
'''
@summary:
---------
@param tab_urls: url表名
@param tab_site: 网站表名
@param parser_count: parser 的线程数，为空时以配置文件为准
@param parser_params : 解析器所用的參數
@param begin_callback: 爬虫开始的回调
@param end_callback: 爬虫结束的回调
---------
@result:
'''
super(Spider, self).__init__()
self._tab_urls = tab_urls
self._db = MongoDB()
self._db.set_unique_key(tab_urls, 'url')
self._db.set_unique_key(tab_site, 'site_id')
self._db.set_unique_key(tab_content, content_unique_key)
#设置索引 加快查询速度
self._db.set_ensure_index(tab_urls, 'depth')
self._db.set_ensure_index(tab_urls, 'status')
self._db.set_ensure_index(tab_site, 'read_status')
self._db.set_ensure_index(tab_content, 'read_status')
self._collector = Collector(tab_urls)
self._parsers = []
self._parser_params = parser_params
self._begin_callback = begin_callback
self._end_callabck = end_callback
self._parser_count = int(
tools.get_conf_value(
'config.conf', 'parser',
'parser_count')) if not parser_count else parser_count
self._spider_site_name = tools.get_conf_value(
'config.conf', "spider_site", "spider_site_name").split(',')
self._except_site_name = tools.get_conf_value(
'config.conf', "spider_site", "except_site_name").split(',')
def add_parser(self, parser):
if self._spider_site_name[0] == 'all':
for except_site_name in self._except_site_name:
if parser.NAME != except_site_name.strip():
self._parsers.append(parser)
else:
for spider_site_name in self._spider_site_name:
if parser.NAME == spider_site_name.strip():
self._parsers.append(parser)
def run(self):
self.__start()
def __start(self):
if self._begin_callback:
self._begin_callback()
if not self._parsers:
if self._end_callabck:
self._end_callabck()
return
# 启动collector
self._collector.add_finished_callback(self._end_callabck)
self._collector.start()
# 启动parser 的add site 和 add root
#print(self._parser_params)
for parser in self._parsers:
threading.Thread(target=parser.add_site_info).start()
threading.Thread(target=parser.add_root_url,
args=(self._parser_params, )).start()
# 启动parser control
while self._parser_count:
parser_control = PaserControl(self._collector, self._tab_urls)
for parser in self._parsers:
parser_control.add_parser(parser)
parser_control.start()
self._parser_count -= 1
class Spider(threading.Thread):
def __init__(self,
tab_urls,
tab_site,
tab_content,
parser_count=None,
search_keyword1=[],
search_keyword2=[],
search_keyword3=[],
begin_callback=None,
end_callback=None,
content_unique_key=None):
'''
@summary:
---------
@param tab_urls: url表名
@param tab_site: 网站表名
@param parser_count: parser 的线程数，为空时以配置文件为准
@param search_keyword1: 搜索关键字（列表）全部包含
@param search_keyword2: 搜索关键字（列表）至少包含一个
@param search_keyword3: 搜索关键字（列表）一个都不能包含
@param begin_callback: 爬虫开始的回调
@param end_callback: 爬虫结束的回调
---------
@result:
'''
super(Spider, self).__init__()
self._tab_urls = tab_urls
self._db = MongoDB()
self._db.set_unique_key(tab_urls, 'url')
self._db.set_unique_key(tab_site, 'site_id')
self._db.set_unique_key(
tab_content,
'url' if not content_unique_key else content_unique_key)
self._collector = Collector(tab_urls)
self._parsers = []
self._search_keyword1 = search_keyword1
self._search_keyword2 = search_keyword2
self._search_keyword3 = search_keyword3
self._begin_callback = begin_callback
self._end_callabck = end_callback
self._parser_count = int(
tools.get_conf_value(
'config.conf', 'parser',
'parser_count')) if not parser_count else parser_count
self._spider_site_name = tools.get_conf_value(
'config.conf', "spider_site", "spider_site_name").split(',')
self._except_site_name = tools.get_conf_value(
'config.conf', "spider_site", "except_site_name").split(',')
def add_parser(self, parser):
if self._spider_site_name[0] == 'all':
for except_site_name in self._except_site_name:
if parser.NAME != except_site_name.strip():
self._parsers.append(parser)
else:
for spider_site_name in self._spider_site_name:
if parser.NAME == spider_site_name.strip():
self._parsers.append(parser)
def run(self):
self.__start()
def __start(self):
if self._begin_callback:
self._begin_callback()
if not self._parsers:
if self._end_callabck:
self._end_callabck()
return
# 启动collector
self._collector.add_finished_callback(self._end_callabck)
self._collector.start()
# 启动parser 的add site 和 add root
for parser in self._parsers:
threading.Thread(target=parser.add_site_info).start()
threading.Thread(target=parser.add_root_url,
args=(self._search_keyword1,
self._search_keyword2,
self._search_keyword3)).start()
# 启动parser control
while self._parser_count:
parser_control = PaserControl(self._collector, self._tab_urls)
for parser in self._parsers:
parser_control.add_parser(parser)
parser_control.start()
self._parser_count -= 1