网上有很多免费的ip地址，都是可以使用的，但是如果手动来获取太麻烦，这里通过Python自动抓取，可以批量获取。

代码如下：

# -*- coding: utf-8 -*-import reimport urllib2import jsonimport osimport timeimport socketclass ProxyIp(object): def __init__(self): self.path = os.path.split(os.path.realpath(__file__))[0] # Get latest proxy ip and download to json def update_ip(self): print 'Update Ip' url = 'http://www.ip3366.net/free/' req = urllib2.Request(url) response = urllib2.urlopen(req) matches = re.findall( ur'(\d+.\d+.\d+.\d+)</td>\s+<td>(\d+)</td>\s+<td>.*?</td>\s+<td>(HTTPS?)</td>', response.read(), re.I ) ls = [] for match in matches: if self.is_open(match[0], match[1]): ls.append({'ip':match[0], 'port':match[1], 'protocol': match[2]}) with open('%s/ip.json' % self.path, 'w') as f: json.dump(ls, f) return ls # whether the ips is last or old. def is_last(self): m_time = int(os.path.getmtime('%s/ip.json' % self.path)) now_time = int(time.time()) return (now_time - m_time) > 60*60*4 # 4 hours @staticmethod def is_open(ip, port): s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) try: s.connect(ip, int(port)) return True except: print 'Faild IP: %s:%s' % (ip, port) return False def get_proxy_ips(self): if not self.is_last(): return self.update_ip() else: with open('%s/ip.json' % self.path, 'r') as f: return json.load(f)

以上这篇Python采集代理ip并判断是否可用和定时更新的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。