import traceback
import time
import motor.motor_asyncio
try:
# Python 3.x
from urllib.parse import quote_plus
except ImportError:
# Python 2.x
from urllib import quote_plus
class MongoPipeline(object):
def __init__(self, client, db_name, collection, settings):
self.client = client
self.db = self.client[db_name]
self.collection = self.db[collection]
self.settings = settings
@classmethod
def from_settings(cls, settings):
dbparms = dict(
host = settings["MONGODB_HOST"],
port = settings["MONGODB_PORT"],
user = settings["MONGODB_USER"],
passwd = settings["MONGODB_PASSWORD"],
)
if dbparms['user']:
uri = "mongodb://%s:%s@%s:%s" % (
quote_plus(dbparms['user']), quote_plus(dbparms['password']), dbparms['host'], dbparms['port'])
else:
uri = "mongodb://%s:%s" % (dbparms['host'], dbparms['port'])
client = motor.motor_asyncio.AsyncIOMotorClient(uri)
db_name = settings["MONGODB_DBNAME"]
collection = settings['MONGODB_COLLECTION']
return cls(client, db_name, collection, settings)
def insert_one(self, sql):
try:
self.collection.insert_one(sql)
except Exception as e:
traceback.print_exc()
def insert_many(self, multi_sql:list):
try:
self.collection.insert_many(multi_sql)
except Exception as e:
traceback.print_exc()
def process_item(self, item, spider):
if not self.settings['MONGODB_PIPLINES_ENABLED']: return
mongodb_sql = item.get_mongodb_insert_sql(spider)
for sql in mongodb_sql:
self.insert_one(sql)
def close_spider(self, spider):
self.client.close()
scrapy mongodb 数据存储
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