Python爬虫之Scrapy数据保存MongoDB
首先在Pipelines.py中创建一个类：
class MongoPipline(object):
def __init__(self, mongo_url, mongo_db):
self.mongo_url = mongo_url
self.mongo_db = mongo_db
@classmethod
def from_crawler(cls, crawler):
return cls(
mongo_url=crawler.settings.get('MONGO_URL'),
mongo_db=crawler.settings.get('MONGO_DB')
)
def open_spider(self, spider):
self.client = pymongo.MongoClient(self.mongo_url)
self.db = self.client[self.mongo_db]
def process_item(self, item, spider):
# name =item.__class__.__name__
self.db['Article'].insert(dict(item))
return item
def close_spider(self, spider):
self.client.close()
在Settings.py文件中加入MongoDB的地址和数据库如：
MONGO_URL = 'localhost'
MONGO_DB = 'Article'
