middlewares.py
from w3lib.http import basic_auth_header class CustomProxyMiddleware(object): def process_request(self, request, spider): request.meta['proxy'] = "https://<PROXY_IP_OR_URL>:<PROXY_PORT>" request.headers['Proxy-Authorization'] = basic_auth_header( '<PROXY_USERNAME>', '<PROXY_PASSWORD>')
settings.py
DOWNLOADER_MIDDLEWARES = { '<PROJECT_NAME>.middlewares.CustomProxyMiddleware': 350, 'scrapy.downloadermiddlewares.httpproxy.HttpProxyMiddleware': 400, }
问题
1、如果代理验证设置不对，状态码会返回407
407 Proxy Authentication Required
刚开始采用以下格式配置，发现部分请求可以发送，不过会有一个重试，部分请求直接报错
request.meta['proxy'] = "https://<PROXY_USERNAME>:<PROXY_PASSWORD>@<PROXY_IP_OR_URL>:<PROXY_PORT>"
参考
Using a custom proxy in a Scrapy spider Proxy-Authorization
