scrapy - Apscheduler+scrapy 信号仅适用于主线程

Question

我想将 apscheduler 与 scrapy.but 我的代码是错误的。
我应该如何修改它？

settings = get_project_settings()
configure_logging(settings)
runner = CrawlerRunner(settings)

@defer.inlineCallbacks
def crawl():
    reactor.run()
    yield runner.crawl(Jobaispider)#this is my spider
    yield runner.crawl(Jobpythonspider)#this is my spider
    reactor.stop()

sched = BlockingScheduler()
sched.add_job(crawl, 'date', run_date=datetime(2018, 12, 4, 10, 45, 10))
sched.start()

错误:builtins.ValueError:信号仅适用于主线程

Answer 1

这个问题在这里得到了很好的回答:How to integrate Flask & Scrapy?它涵盖了各种用例和想法。我还发现该线程中的一个链接非常有用:https://github.com/notoriousno/scrapy-flask
要更直接地回答您的问题，请试试这个。它使用了上述两个链接的解决方案，特别是它使用了钩针库。

import crochet
crochet.setup()

settings = get_project_settings()
configure_logging(settings)
runner = CrawlerRunner(settings)

# Note: Removing defer here for the example
#@defer.inlineCallbacks

@crochet.run_in_reactor
def crawl():
    runner.crawl(Jobaispider)#this is my spider
    runner.crawl(Jobpythonspider)#this is my spider

sched = BlockingScheduler()
sched.add_job(crawl, 'date', run_date=datetime(2018, 12, 4, 10, 45, 10))
sched.start()