尝试使用Python多线程抓取代理服务器IP地址的示例

#!/usr/bin/env python#coding:utf-8import urllib2import reimport threadingimport timeimport MySQLdbrawProxyList = []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,addressdef 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)

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.txt202.106.169.142:80  北京市 联通ADSL 0.291432857513111.13.136.59:80  北京市 移动  0.297957897186111.13.136.56:80  北京市 移动  0.373070955276111.206.81.248:80  北京市 联通  0.403017997742111.13.136.58:80  北京市 移动  0.414332151413124.202.217.134:8118 北京市 电信通 0.416817903519124.202.183.218:8118 北京市 电信通 0.426618099213120.132.71.232:80  北京市 联通  0.44020009040861.232.6.164:8081  北京市 铁通  0.469615936279118.144.96.253:80  北京市 电信通 0.485229969025203.192.10.66:80  北京市 新华社 0.51485991478124.202.182.22:8118  北京市 电信通 0.553130865097

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)