tornado.py 文件源码

def get(self, *args, **kwargs):
        if self._access_validation is not None:
            self._access_validation(self.request)

        if self._url is None:
            raise tornado.web.HTTPError(404)

        client = tornado.httpclient.AsyncHTTPClient()
        r = tornado.httpclient.HTTPRequest(url=self._url, method=self.request.method, body=self.request.body, headers=self.request.headers, follow_redirects=False, allow_nonstandard_methods=True)

        try:
            return client.fetch(r, self.handle_response)
        except tornado.web.HTTPError as e:
            if hasattr(e, "response") and e.response:
                self.handle_response(e.response)
            else:
                raise tornado.web.HTTPError(500)