今天给大家分享的是如何在爬取数据的时候防止IP被封,今天给大家分享两种方法,希望大家可以认真学习,再也不用担心被封IP啦。
第一种:
降低访问速度,我们可以使用time模块中的sleep,使程序每运行一次后就睡眠1s,这样的话就可以大大的减少ip被封的几率
第二种:
为了提高效率,我们可以使用代理ip来解决,ip是亿牛云的动态转发代理,以下是代理配置过程的示例
Selenium
from selenium import webdriver import string import zipfile # 代理服务器 proxyHost = "t.16yun.cn" proxyPort = "31111" # 代理隧道验证信息 proxyUser = "username" proxyPass = "password" def create_proxy_auth_extension(proxy_host, proxy_port, proxy_username, proxy_password, scheme='http', plugin_path=None): if plugin_path is None: plugin_path = r'C:/{}_{}@t.16yun.zip'.format(proxy_username, proxy_password) manifest_json = """ { "version": "1.0.0", "manifest_version": 2, "name": "16YUN Proxy", "permissions": [ "proxy", "tabs", "unlimitedStorage", "storage", "", "webRequest", "webRequestBlocking" ], "background": { "scripts": ["background.js"] }, "minimum_chrome_version":"22.0.0" } """ background_js = string.Template( """ var config = { mode: "fixed_servers", rules: { singleProxy: { scheme: "${scheme}", host: "${host}", port: parseInt(${port}) }, bypassList: ["foobar.com"] } }; chrome.proxy.settings.set({value: config, scope: "regular"}, function() {}); function callbackFn(details) { return { authCredentials: { username: "${username}", password: "${password}" } }; } chrome.webRequest.onAuthRequired.addListener( callbackFn, {urls: [""]}, ['blocking'] ); """ ).substitute( host=proxy_host, port=proxy_port, username=proxy_username, password=proxy_password, scheme=scheme, ) with zipfile.ZipFile(plugin_path, 'w') as zp: zp.writestr("manifest.json", manifest_json) zp.writestr("background.js", background_js) return plugin_path proxy_auth_plugin_path = create_proxy_auth_extension( proxy_host=proxyHost, proxy_port=proxyPort, proxy_username=proxyUser, proxy_password=proxyPass) option = webdriver.ChromeOptions() option.add_argument("--start-maximized") # 如报错 chrome-extensions # option.add_argument("--disable-extensions") option.add_extension(proxy_auth_plugin_path) driver = webdriver.Chrome(chrome_options=option) driver.get("http://httpbin.org/ip")
好了,今天关于python学习的分享就到这里,上边的那段代码可以直接使用,但是里边的代理应该已经过期,大家在使用的时候可能需要联系代理商开通服务,最后呢希望大家能够收藏起来,要记得做笔记哦。好记性不如烂笔头。