python scrapy 网络采集使用代理的方法
发布时间:2020-12-17 17:08:00 所属栏目:Python 来源:网络整理
导读:今天PHP站长网 52php.cn把收集自互联网的代码分享给大家,仅供参考。 1.在Scrapy工程下新建“middlewares.py” # Importing base64 library because we'll need it ONLY in case if the proxy we are going to use requir
以下代码由PHP站长网 52php.cn收集自互联网 现在PHP站长网小编把它分享给大家,仅供参考
1.在Scrapy工程下新建“middlewares.py”
# Importing base64 library because we'll need it ONLY in case if the proxy we are going to use requires authentication import base64 # Start your middleware class class ProxyMiddleware(object): # overwrite process request def process_request(self,request,spider): # Set the location of the proxy request.meta['proxy'] = "http://YOUR_PROXY_IP:PORT" # Use the following lines if your proxy requires authentication proxy_user_pass = "USERNAME:PASSWORD" # setup basic authentication for the proxy encoded_user_pass = base64.encodestring(proxy_user_pass) request.headers['Proxy-Authorization'] = 'Basic ' + encoded_user_pass #该代码片段来自于: http://www.sharejs.com/codes/python/83092.在项目配置文件里(./project_name/settings.py)添加 DOWNLOADER_MIDDLEWARES = { 'scrapy.contrib.downloadermiddleware.httpproxy.HttpProxyMiddleware': 110,'project_name.middlewares.ProxyMiddleware': 100,}只要两步,现在请求就是通过代理的了。测试一下^_^ from scrapy.spider import BaseSpider from scrapy.contrib.spiders import CrawlSpider,Rule from scrapy.http import Request class TestSpider(CrawlSpider): name = "test" domain_name = "whatismyip.com" # The following url is subject to change,you can get the last updated one from here : # http://www.whatismyip.com/faq/automation.asp start_urls = ["http://xujian.info"] def parse(self,response): open('test.html','wb').write(response.body) 以上内容由PHP站长网【52php.cn】收集整理供大家参考研究 如果以上内容对您有帮助,欢迎收藏、点赞、推荐、分享。 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |