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描述:想要一个普通的豆瓣抓取代码(抓什么的都行)然后把这个代理功能加进入。
问题:现在就是大概可以看懂代理池这个代码,想把这个功能用到真正抓取的功能里边
老师上课的代码:
- # https://blog.csdn.net/qq_40418612/article/details/82595140
- import random, requests, os
- from selenium import webdriver
- from lxml import etree
- import time
- def req(url):
- # 设置多个 user-agent
- User_Agent = random.choice([
- "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
- "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Acoo Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506)",
- "Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.5; AOLBuild 4337.35; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
- "Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)",
- "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
- "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
- "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
- "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
- "Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
- "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",
- "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",
- "Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5",
- "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko Fedora/1.9.0.8-1.fc10 Kazehakase/0.5.6",
- "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
- "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.20 (KHTML, like Gecko) Chrome/19.0.1036.7 Safari/535.20",
- "Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; fr) Presto/2.9.168 Version/11.52",
- 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
- ])
- # 从https://www.zdaye.com爬取代理,并存储到http_list.txt和https_list.txt的文件中
- l = os.listdir(os.getcwd())
- if "http_list.txt" not in l:
- proxy_url = 'https://www.zdaye.com/dayProxy/ip/324679.html'
- driver = webdriver.Chrome()
- driver.get(proxy_url)
- time.sleep(2)
- t = driver.page_source
- # driver.quit()
- html = etree.HTML(t)
- print(t)
- http_list = []
- https_list = []
- wholeProxys = html.xpath("//*[@class='cont']/text()")
- # print(len(wholeProxys))
- for each in wholeProxys:
- wholeProxy=each[:each.find('#')] #通过索引访问字符串;下同。
- ip=wholeProxy[:wholeProxy.find(':')]
- port=wholeProxy[wholeProxy.find(':')+1:wholeProxy.find('@')]
- protocol=wholeProxy[wholeProxy.find('@')+1:]
- # print(wholeProxy)
- print(ip,'--',port,'--',protocol)
- if protocol == "HTTP":
- http_list.append(protocol + r"://" + ip + ":" + port)
- if protocol == "HTTPS":
- https_list.append(protocol + r"://" + ip + ":" + port)
- with open("http_list.txt", "w") as p:
- p.write(str(http_list))
- with open("https_list.txt", "w") as p:
- p.write(str(https_list))
- else:
- with open("http_list.txt") as f:
- http_list = eval(f.read())
- with open("https_list.txt") as f:
- https_list = eval(f.read())
- try:
- proxies = {"http": random.choice(http_list), "https": random.choice(https_list)}
- headers = {"User-Agent": User_Agent, "cookie": revert_cookie(cookie)}
- r = requests.get(url, proxies=proxies, headers=headers)
- print(r.status_code)
- return r.text
- except:
- print("当前所使用的代理已失效,更换代理重试中...")
- while True:
- for n in range(100):
- # proxies = {"http": random.choice(list(http_list)), "https": random.choice(list(https_list))}
- proxies = {"http": random.choice(list(http_list))} #暂不处理https
- headers = {"User-Agent": User_Agent, }
- r = requests.get(url, proxies=proxies, headers=headers)
- if r.status_code == 200:
- print("更换代理成功,已获取到网页源码;当前所用代理为:",proxies)
- print(r.text)
- return r
- else:
- continue
- print('在代理池中更换了n个代理,但还是无法连接服务器...')
- if __name__ == '__main__':
- url = "http://httpbin.org/ip"
- print(req(url))
复制代码
没找到悬赏在哪... |
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