Python-用户代理池

用户代理池

概述

所谓用户代理池就是将不同的用户代理组建为一个池子，随后随机调用。防反扒效果好。

#用户代理池的构建
import urllib.request
import re
import random    #随机数组模块
uapools=[
    "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Firefox/78.0"
    "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.81 Safari/537.36 SE 2.X MetaSr 1.0"
    "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/74.0.3729.169 "
]
def ua(uapools):
    thisua=random.choice(uapools)
    print(thisua)
    # 浏览器伪装
    headers = ("User-Agent",thisua)
    opener = urllib.request.build_opener()
    opener.addheaders = [headers]
    # 安装为全局
    urllib.request.install_opener(opener)
for i in range(0,3):
    ua(uapools)
    thisurl="https://www.qiushibaike.com/text/page/"+str(i+1)+"/"
    data=urllib.request.urlopen(thisurl).read().decode("utf-8","ignore")
    pat='
.*?(.*?).*?
'
    resoult=re.compile(pat,re.S).findall(data)
    for j in range(0,len(resoult)):
        print(resoult[j])
        print("___________________")