这篇文章主要介绍了python多线程爬取西刺代理的示例代码，帮助大家更好的理解和学习python的爬虫，感兴趣的朋友可以了解下
西刺代理是一个国内IP代理，由于代理倒闭了，所以我就把原来的代码放出来供大家学习吧。
镜像地址：https://www.blib.cn/url/xcdl.html
首先找到所有的tr标签，与class="odd"的标签，然后提取出来。
然后再依次找到tr标签里面的所有td标签，然后只提取出里面的[1,2,5,9]这四个标签的位置，其他的不提取。
import sys,re,threading import requests,lxml from queue import Queue import argparse from bs4 import BeautifulSoup head = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.100 Safari/537.36"} if __name__ == "__main__": ip_list=[] fp = open("SpiderAddr.json","a+",encoding="utf-8") url = "https://www.blib.cn/url/xcdl.html" request = requests.get(url=url,headers=head) soup = BeautifulSoup(request.content,"lxml") data = soup.find_all(name="tr",attrs={"class": re.compile("|[^odd]")}) for item in data: soup_proxy = BeautifulSoup(str(item),"lxml") proxy_list = soup_proxy.find_all(name="td") for i in [1,2,5,9]: ip_list.append(proxy_list[i].string) print("[+] 爬行列表: {} 已转存".format(ip_list)) fp.write(str(ip_list) + 'n') ip_list.clear()
爬取后会将文件保存为 SpiderAddr.json 格式。
最后再使用另一段代码，将其转换为一个SSR代理工具直接能识别的格式，{'http': 'http://119.101.112.31:9999'}
import sys,re,threading import requests,lxml from queue import Queue import argparse from bs4 import BeautifulSoup if __name__ == "__main__": result = [] fp = open("SpiderAddr.json","r") data = fp.readlines() for item in data: dic = {} read_line = eval(item.replace("n","")) Protocol = read_line[2].lower() if Protocol == "http": dic[Protocol] = "http://" + read_line[0] + ":" + read_line[1] else: dic[Protocol] = "https://" + read_line[0] + ":" + read_line[1] result.append(dic) print(result)
完整多线程版代码如下所示。
import sys,re,threading import requests,lxml from queue import Queue import argparse from bs4 import BeautifulSoup head = {"User-Agent": "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.100 Safari/537.36"} class AgentSpider(threading.Thread): def __init__(self,queue): threading.Thread.__init__(self) self._queue = queue def run(self): ip_list=[] fp = open("SpiderAddr.json","a+",encoding="utf-8") while not self._queue.empty(): url = self._queue.get() try: request = requests.get(url=url,headers=head) soup = BeautifulSoup(request.content,"lxml") data = soup.find_all(name="tr",attrs={"class": re.compile("|[^odd]")}) for item in data: soup_proxy = BeautifulSoup(str(item),"lxml") proxy_list = soup_proxy.find_all(name="td") for i in [1,2,5,9]: ip_list.append(proxy_list[i].string) print("[+] 爬行列表: {} 已转存".format(ip_list)) fp.write(str(ip_list) + 'n') ip_list.clear() except Exception: pass def StartThread(count): queue = Queue() threads = [] for item in range(1,int(count)+1): url = "https://www.xicidaili.com/nn/{}".format(item) queue.put(url) print("[+] 生成爬行链接 {}".format(url)) for item in range(count): threads.append(AgentSpider(queue)) for t in threads: t.start() for t in threads: t.join() # 转换函数 def ConversionAgentIP(FileName): result = [] fp = open(FileName,"r") data = fp.readlines() for item in data: dic = {} read_line = eval(item.replace("n","")) Protocol = read_line[2].lower() if Protocol == "http": dic[Protocol] = "http://" + read_line[0] + ":" + read_line[1] else: dic[Protocol] = "https://" + read_line[0] + ":" + read_line[1] result.append(dic) return result if __name__ == "__main__": parser = argparse.ArgumentParser() parser.add_argument("-p","--page",dest="page",help="指定爬行多少页") parser.add_argument("-f","--file",dest="file",help="将爬取到的结果转化为代理格式 SpiderAddr.json") args = parser.parse_args() if args.page: StartThread(int(args.page)) elif args.file: dic = ConversionAgentIP(args.file) for item in dic: print(item) else: parser.print_help()
