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Ewig

scrapy 框架里面 middleware

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  •   Ewig Jan 16, 2019 1479 views
    This topic created in 2657 days ago, the information mentioned may be changed or developed.
    from scrapy.http.headers import Headers
    from Espider.tools.get_cookies import get_cookies
    import pymongo,random
    from Espider.tools.user_agents import user_agents
    from fake_useragent import UserAgent


    class zhipincookiemiddleware():

    def __init__(self, mongodbHost, mongodbPort, mongodbName):
    self.mOngodbHost= mongodbHost
    self.mOngodbPort= mongodbPort
    self.mOngodbName= mongodbName

    @classmethod
    def from_crawler(cls, crawler):
    return cls(mOngodbHost=crawler.settings.get('MONGODB_HOST'), mOngodbPort=crawler.settings.get('MONGODB_PORT'),
    mOngodbName=crawler.settings.get('MONGODB_DBNAME'))

    def process_request(self, request, spider):
    ua=UserAgent()

    self.client = pymongo.MongoClient(self.mongodbHost, self.mongodbPort)
    self.mOngodb= self.client[self.mongodbName]

    self.collection = self.mongodb[spider.name + '_cookie']
    self.cookies_str = self.collection.find_one()['cookie']
    self.headers = {
    "User-Agent":ua.random,
    "cookie": random.choice(self.cookies_str)}

    request.headers = Headers(self.headers)

    框架里面写了一个 cookiemiddleware
    我这里写了一个 random cookie,在每次请求的时候 会重新随机一下 cookie 吗?
    1 replies    2019-01-17 09:21:54 +08:00
    holajamc
        1
    holajamc  
       Jan 17, 2019
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