python爬虫批量抓取ip代理的方法（代码）

#grab ip proxies from xicidailiimport sys, time, re, requestsfrom multiprocessing.dummy import Pool as ThreadPoolfrom lxml import etreeIP_POOL = 'ip_pool.py'URL = 'http://www.xicidaili.com/nn/' #IP代理 高匿#URL = 'http://www.xicidaili.com/wt/' #IP代理 httpRUN_TIME = time.strftime("%Y-%m-%d %H:%M", time.localtime()) #执行时间#用字典存放有效ip代理alive_ip = {'http': [], 'https': []}#多线程pool = ThreadPool(20)#返回html文本def get_html(url):    headers = {        "User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0",        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",        "Accept-Language": "zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3",        "Accept-Encoding": "gzip, deflate",        "Referer": "https://www.xicidaili.com/",        "Connection": "keep-alive",        "Upgrade-Insecure-Requests": "1"    }    r = requests.get(url, headers=headers)    r.encoding = 'utf-8'    return r.text#测试ip代理是否存活def test_alive(proxy):    global alive_ip    proxies = {'http': proxy}    try:        r = requests.get('https://www.baidu.com', proxies=proxies, timeout=3)        if r.status_code == 200:            if proxy.startswith('https'):                alive_ip['https'].append(proxy)            else:                alive_ip['http'].append(proxy)    except:        print("%s无效!"%proxy)#解析html文本，获取ip代理def get_alive_ip_address():    iplist = []    html = get_html(URL)    selector = etree.HTML(html)    table = selector.xpath('//table[@id="ip_list"]')[0]    lines = table.xpath('./tr')[1:]    for line in lines:        speed, connect_time = line.xpath('.//div/@title')        data = line.xpath('./td')        ip = data[1].xpath('./text()')[0]        port = data[2].xpath('./text()')[0]        anonymous = data[4].xpath('./text()')[0]        ip_type = data[5].xpath('./text()')[0]        #过滤掉速度慢和非高匿的ip代理        if float(speed[:-1])>1 or float(connect_time[:-1])>1 or anonymous != '高匿':            continue        iplist.append(ip_type.lower() + '://' + ip + ':' + port)    pool.map(test_alive, iplist)#把抓取到的有效ip代理写入到本地def write_txt(output_file):    with open(output_file, 'w') as f:        f.write('#create time: %s' % RUN_TIME)        f.write('http_ip_pool = \')        f.write(str(alive_ip['http']).replace(',', ','))        f.write('')    with open(output_file, 'a') as f:        f.write('https_ip_pool = \')        f.write(str(alive_ip['https']).replace(',', ','))    print('write successful: %s' % output_file)def main():    get_alive_ip_address()    write_txt(output_file)if __name__ == '__main__':    try:        output_file = sys.argv[1] #第一个参数作为文件名    except:        output_file = IP_POOL    main()

root@c:test$ python get_ip_proxies.pywrite successful: ip_pool.py

root@c:test$ vim ip_pool.py

#create time: 2019-03-14 19:53http_ip_pool = ['http://183.148.152.1:9999', 'http://112.85.165.234:9999', 'http://112.87.69.162:9999', 'http://111.77.197.10:9999', 'http://113.64.94.80:8118', 'http://61.184.109.33:61320', 'http://125.126.204.82:9999', 'http://125.126.218.8:9999', 'http://36.26.224.56:9999', 'http://123.162.168.192:40274', 'http://116.209.54.125:9999', 'http://183.148.148.211:9999', 'http://111.177.161.111:9999', 'http://116.209.58.245:9999', 'http://183.148.143.38:9999', 'http://116.209.55.218:9999', 'http://114.239.250.15:9999', 'http://116.209.54.109:9999', 'http://125.123.143.98:9999', 'http://183.6.130.6:8118', 'http://183.148.143.166:9999', 'http://125.126.203.228:9999', 'http://111.79.198.74:9999', 'http://116.209.53.215:9999', 'http://112.87.69.124:9999', 'http://112.80.198.13:8123', 'http://182.88.160.16:8123', 'http://116.209.56.24:9999', 'http://112.85.131.25:9999', 'http://116.209.52.234:9999', 'http://175.165.128.223:1133', 'http://122.4.47.199:8010', 'http://112.85.170.204:9999', 'http://49.86.178.206:9999', 'http://125.126.215.187:9999']https_ip_pool = ['https://183.148.156.98:9999', 'https://111.79.199.167:808', 'https://61.142.72.150:39894', 'https://119.254.94.71:42788', 'https://221.218.102.146:33323', 'https://122.193.246.29:9999', 'https://183.148.139.173:9999', 'https://60.184.194.157:3128', 'https://118.89.138.129:52699', 'https://112.87.71.67:9999', 'https://58.56.108.226:43296', 'https://182.207.232.135:50465', 'https://111.177.186.32:9999', 'https://58.210.133.98:32741', 'https://115.221.116.71:9999', 'https://183.148.140.191:9999', 'https://183.148.130.143:9999', 'https://116.209.54.84:9999', 'https://125.126.219.125:9999', 'https://112.85.167.158:9999', 'https://112.85.173.76:9999', 'https://60.173.244.133:41306', 'https://183.148.147.223:9999', 'https://116.209.53.68:9999', 'https://111.79.198.102:9999', 'https://123.188.5.11:1133', 'https://60.190.66.131:56882', 'https://112.85.168.140:9999', 'https://110.250.65.108:8118', 'https://221.208.39.160:8118', 'https://116.209.53.77:9999', 'https://116.209.58.29:9999', 'https://183.148.141.129:9999', 'https://124.89.33.59:53281', 'https://116.209.57.149:9999', 'https://58.62.238.150:32431', 'https://218.76.253.201:61408']

from ip_pool import http_ip_pool, https_ip_pool