Python作为一门功能强大的脚本语言来说,经常被用来写爬虫程序,下面是Python爬虫多线程抓取代理服务器。
年前是用 //linuxeye.com/340.html 来抓取代理服务器的,谁知道过完年回来http://www.cnproxy.com/被墙,导致某网站不能抓取东西,停止更新。
现在改抓取 http://www.proxy.com.ru 的代理服务器,这里的代理服务器更多,更简单。
下面代码可以直接用,代码如下:
- #!/usr/bin/env python
- #coding:utf-8
- #BLOG: linuxeye.com
- import urllib2
- import re
- import threading
- import time
- import MySQLdb
- rawProxyList = []
- checkedProxyList = []
- #抓取代理网站
- targets = []
- for i in xrange(1,42):
- target = r"http://www.proxy.com.ru/list_%d.html" % i
- targets.append(target)
- #抓取代理服务器正则
- p = re.compile(r'''<tr><b><td>(\d+)</td><td>(.+?)</td><td>(\d+)</td><td>(.+?)</td><td>(.+?)</td></b></tr>''')
- #获取代理的类
- class ProxyGet(threading.Thread):
- def __init__(self,target):
- threading.Thread.__init__(self)
- self.target = target
- def getProxy(self):
- print "代理服务器目标网站: " + self.target
- req = urllib2.urlopen(self.target)
- result = req.read()
- #print chardet.detect(result)
- matchs = p.findall(result)
- # print matchs
- for row in matchs:
- ip=row[1]
- port =row[2]
- addr = row[4].decode("cp936").encode("utf-8")
- proxy = [ip,port,addr]
- print proxy
- rawProxyList.append(proxy)
- def run(self):
- self.getProxy()
- #检验代理的类
- class ProxyCheck(threading.Thread):
- def __init__(self,proxyList):
- threading.Thread.__init__(self)
- self.proxyList = proxyList
- self.timeout = 5
- self.testUrl = "http://www.baidu.com/"
- self.testStr = "030173"
- def checkProxy(self):
- cookies = urllib2.HTTPCookieProcessor()
- for proxy in self.proxyList:
- proxyHandler = urllib2.ProxyHandler({"http" : r'http://%s:%s' %(proxy[0],proxy[1])})
- #print r'http://%s:%s' %(proxy[0],proxy[1])
- opener = urllib2.build_opener(cookies,proxyHandler)
- opener.addheaders = [('User-agent', 'Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0')]
- #urllib2.install_opener(opener)
- t1 = time.time()
- try:
- #req = urllib2.urlopen("http://www.baidu.com", timeout=self.timeout)
- req = opener.open(self.testUrl, timeout=self.timeout)
- #print "urlopen is ok...."
- result = req.read()
- #print "read html...."
- timeused = time.time() - t1
- pos = result.find(self.testStr)
- #print "pos is %s" %pos
- if pos > 1:
- checkedProxyList.append((proxy[0],proxy[1],proxy[2],timeused))
- #print "ok ip: %s %s %s %s" %(proxy[0],proxy[1],proxy[2],timeused)
- else:
- continue
- except Exception,e:
- #print e.message
- continue
- def run(self):
- self.checkProxy()
- if __name__ == "__main__":
- getThreads = []
- checkThreads = []
- #对每个目标网站开启一个线程负责抓取代理
- for i in range(len(targets)):
- t = ProxyGet(targets[i])
- getThreads.append(t)
- for i in range(len(getThreads)):
- getThreads[i].start()
- for i in range(len(getThreads)):
- getThreads[i].join()
- print '.'*10+"总共抓取了%s个代理" %len(rawProxyList) +'.'*10
- #开启20个线程负责校验,将抓取到的代理分成20份,每个线程校验一份
- for i in range(20):
- t = ProxyCheck(rawProxyList[((len(rawProxyList)+19)/20) * i:((len(rawProxyList)+19)/20) * (i+1)])
- checkThreads.append(t)
- for i in range(len(checkThreads)):
- checkThreads[i].start()
- for i in range(len(checkThreads)):
- checkThreads[i].join()
- print '.'*10+"总共有%s个代理通过校验" %len(checkedProxyList) +'.'*10
- #插入数据库,表结构自己创建,四个字段ip,port,speed,address
- def db_insert(insert_list):
- try:
- conn = MySQLdb.connect(host="localhost", user="root", passwd="admin",db="m_common",charset='utf8')
- cursor = conn.cursor()
- cursor.execute('delete from proxy')
- cursor.execute('alter table proxy AUTO_INCREMENT=1')
- cursor.executemany("INSERT INTO proxy(ip,port,speed,address) VALUES (%s,%s,%s,%s)",insert_list)
- conn.commit()
- cursor.close()
- conn.close()
- except MySQLdb.Error,e:
- print "Mysql Error %d: %s" % (e.args[0], e.args[1])
- #代理排序持久化
- proxy_ok = []
- f= open("proxy_list.txt",'w+')
- for proxy in sorted(checkedProxyList,cmp=lambda x,y:cmp(x[3],y[3])):
- if proxy[3] < 8:
- #print "checked proxy is: %s:%s\t%s\t%s" %(proxy[0],proxy[1],proxy[2],proxy[3])
- proxy_ok.append((proxy[0],proxy[1],proxy[3],proxy[2]))
- f.write("%s:%s\t%s\t%s\n"%(proxy[0],proxy[1],proxy[2],proxy[3]))
- f.close()
- db_insert(proxy_ok)
测试结果如下:
- # python -V
- Python 2.6.6
- # python proxy.py
- ['61.58.94.179', '8088', '\xe5\x8f\xb0\xe6\xb9\xbe\xe7\x9c\x81 \xe5\x8f\xb0\xe6\xb9\xbe\xe5\xae\xbd\xe9\xa2\x91\xe9\x80\x9a\xe8\xae\xaf\xe9\xa1\xbe\xe9\x97\xae\xe8\x82\xa1\xe4\xbb\xbd\xe6\x9c\x89\xe9\x99\x90\xe5\x85\xac\xe5\x8f\xb8']
- ['200.84.116.99', '9064', '\xe5\xa7\x94\xe5\x86\x85\xe7\x91\x9e\xe6\x8b\x89 ']
- ['183.223.204.8', '8123', '\xe5\x9b\x9b\xe5\xb7\x9d\xe7\x9c\x81\xe8\x87\xaa\xe8\xb4\xa1\xe5\xb8\x82 \xe7\xa7\xbb\xe5\x8a\xa8']
- ..........总共抓取了1921个代理..........
- ..........总共有524个代理通过校验..........
- # more proxy_list.txt
- 202.106.169.142:80 北京市 联通ADSL 0.291432857513
- 111.13.136.59:80 北京市 移动 0.297957897186
- 111.13.136.56:80 北京市 移动 0.373070955276
- 111.206.81.248:80 北京市 联通 0.403017997742
- 111.13.136.58:80 北京市 移动 0.414332151413
- 124.202.217.134:8118 北京市 电信通 0.416817903519
- 124.202.183.218:8118 北京市 电信通 0.426618099213
- 120.132.71.232:80 北京市 联通 0.440200090408
- 61.232.6.164:8081 北京市 铁通 0.469615936279
- 118.144.96.253:80 北京市 电信通 0.485229969025
- 203.192.10.66:80 北京市 新华社 0.51485991478
- 124.202.182.22:8118 北京市 电信通 0.553130865097
数据库:
- mysql> select * from m_common.proxy limit 10;
- +----------+-----------------+------+----------+----------------------+---------------------+
- | proxy_id | ip | port | speed | address | create_time |
- +----------+-----------------+------+----------+----------------------+---------------------+
- | 1 | 202.106.169.142 | 80 | 0.291433 | 北京市 联通ADSL | 2015-02-26 11:29:24 |
- | 2 | 111.13.136.59 | 80 | 0.297958 | 北京市 移动 | 2015-02-26 11:29:24 |
- | 3 | 111.13.136.56 | 80 | 0.373071 | 北京市 移动 | 2015-02-26 11:29:24 |
- | 4 | 111.206.81.248 | 80 | 0.403018 | 北京市 联通 | 2015-02-26 11:29:24 |
- | 5 | 111.13.136.58 | 80 | 0.414332 | 北京市 移动 | 2015-02-26 11:29:24 |
- | 6 | 124.202.217.134 | 8118 | 0.416818 | 北京市 电信通 | 2015-02-26 11:29:24 |
- | 7 | 124.202.183.218 | 8118 | 0.426618 | 北京市 电信通 | 2015-02-26 11:29:24 |
- | 8 | 120.132.71.232 | 80 | 0.4402 | 北京市 联通 | 2015-02-26 11:29:24 |
- | 9 | 61.232.6.164 | 8081 | 0.469616 | 北京市 铁通 | 2015-02-26 11:29:24 |
- | 10 | 118.144.96.253 | 80 | 0.48523 | 北京市 电信通 | 2015-02-26 11:29:24 |
- +----------+-----------------+------+----------+----------------------+---------------------+
- 10 rows in set (0.00 sec)
Thu Feb 26 11:30:21 CST 2015
1F
不能用了呀
B1
@ 张文龙 http://www.proxy.com.ru网站应该被墙了,可以找找其他的