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我正在使用 Scrapy 中的代理循环,有时某些代理有错误,这会阻止我的蜘蛛。错误是“无法打开 CONNECT 隧道”如果出现此错误,如何更改代码以使用另一个代理重试?

这是需要修改的代码: https ://github.com/scrapy/scrapy/blob/master/scrapy/core/downloader/handlers/http11.py

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1 回答 1

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像这样的东西:

from scrapy.core.downloader.handlers.http11 import TunnelError


class RetryMiddleware(RetryMiddleware):
    def process_exception(self, request, exception, spider):
        if ( isinstance(exception, self.EXCEPTIONS_TO_RETRY) or isinstance(exception, TunnelError) ) \
                and 'dont_retry' not in request.meta:
            return self._retry(request, exception, spider)

在 settings.py 中:

DOWNLOADER_MIDDLEWARES = { 
   'myproject.myretry.RetryMiddleware': 200,
   'scrapy.contrib.downloadermiddleware.retry.RetryMiddleware': None
}
于 2015-07-17T09:38:04.787 回答