pyspider遇到的SSL问题

今天用了一下pyspider爬虫框架，遇到了一点小问题，总结一下：

用pyspider爬取http网站，没有出错，而在爬取https网站出问题。错误信息如下

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[E 170414 21:02:52 base_handler:203] HTTP 599: SSL certificate problem: unable to get local issuer certificate
    Traceback (most recent call last):
      File "d:\python\lib\site-packages\pyspider\libs\base_handler.py", line 196, in run_task
        result = self._run_task(task, response)
      File "d:\python\lib\site-packages\pyspider\libs\base_handler.py", line 175, in _run_task
        response.raise_for_status()
      File "d:\python\lib\site-packages\pyspider\libs\response.py", line 172, in raise_for_status
        six.reraise(Exception, Exception(self.error), Traceback.from_string(self.traceback).as_traceback())
      File "d:\python\lib\site-packages\six.py", line 685, in reraise
        raise value.with_traceback(tb)
      File "d:\python\lib\site-packages\pyspider\fetcher\tornado_fetcher.py", line 378, in http_fetch
        response = yield gen.maybe_future(self.http_client.fetch(request))
      File "d:\python\lib\site-packages\tornado\httpclient.py", line 102, in fetch
        self._async_client.fetch, request, **kwargs))
      File "d:\python\lib\site-packages\tornado\ioloop.py", line 457, in run_sync
        return future_cell[0].result()
      File "d:\python\lib\site-packages\tornado\concurrent.py", line 237, in result
        raise_exc_info(self._exc_info)
      File "<string>", line 3, in raise_exc_info
    Exception: HTTP 599: SSL certificate problem: unable to get local issuer certificate

　　

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之前没用框架的时候也发生过SSL证书问题。在抓取函数中加入validate_cert=False就可以解决

这里同样的在self.crawl()最后加上validate_cert=False这个参数就完美解决了

简而言之，就是给self.crawl()加一个参数，编程self.crawl(XXXXX，validate_cert=False)