代码一：
#!/usr/bin/python # -*- coding: utf-8 -*- #encoding=utf-8 import threading import Queue import sys import urllib2 import re import MySQLdb # # 数据库变量设置 # DB_HOST = '127.0.0.1' DB_USER = "XXXX" DB_PASSWD = "XXXXXXXX" DB_NAME = "xxxx" # # 变量设置 # THREAD_LIMIT = 3 jobs = Queue.Queue(5) singlelock = threading.Lock() info = Queue.Queue() def workerbee(inputlist): for x in xrange(THREAD_LIMIT): print 'Thead {0} started.'.format(x) t = spider() t.start() for i in inputlist: try: jobs.put(i, block=True, timeout=5) except: singlelock.acquire() print "The queue is full !" singlelock.release() # Wait for the threads to finish singlelock.acquire() # Acquire the lock so we can print print "Waiting for threads to finish." singlelock.release() # Release the lock jobs.join() # This command waits for all threads to finish. # while not jobs.empty(): # print jobs.get() def getTitle(url,time=10): response = urllib2.urlopen(url,timeout=time) html = response.read() response.close() reg = r'<title>(.*?)</title>' title = re.compile(reg).findall(html) # title = title[0].decode('gb2312','replace').encode('utf-8') title = title[0] return title class spider(threading.Thread): def run(self): while 1: try: job = jobs.get(True,1) singlelock.acquire() title = getTitle(job[1]) info.put([job[0],title], block=True, timeout=5) # print 'This {0} is {1}'.format(job[1],title) singlelock.release() jobs.task_done() except: break; if __name__ == '__main__': con = None urls = [] try: con = MySQLdb.connect(DB_HOST,DB_USER,DB_PASSWD,DB_NAME) cur = con.cursor() cur.execute('SELECT id,url FROM `table_name` WHERE `status`=0 LIMIT 10') rows = cur.fetchall() for row in rows: # print row urls.append([row[0],row[1]]) workerbee(urls) while not info.empty(): print info.get() finally: if con: con.close()
代码二：
#!/usr/bin/python # -*- coding: utf-8 -*- #encoding=utf-8 #Filename:robot.py import threading,Queue,sys,urllib2,re # # 变量设置 # THREAD_LIMIT = 3 #设置线程数 jobs = Queue.Queue(5) #设置队列长度 singlelock = threading.Lock() #设置一个线程锁,避免重复调用 urls = ['http://games.sina.com.cn/w/n/2013-04-28/1634703505.shtml','http://games.sina.com.cn/w/n/2013-04-28/1246703487.shtml','http://games.sina.com.cn/w/n/2013-04-28/1028703471.shtml','http://games.sina.com.cn/w/n/2013-04-27/1015703426.shtml','http://games.sina.com.cn/w/n/2013-04-26/1554703373.shtml','http://games.sina.com.cn/w/n/2013-04-26/1512703346.shtml','http://games.sina.com.cn/w/n/2013-04-26/1453703334.shtml','http://games.sina.com.cn/w/n/2013-04-26/1451703333.shtml','http://games.sina.com.cn/w/n/2013-04-26/1445703329.shtml','http://games.sina.com.cn/w/n/2013-04-26/1434703322.shtml','http://games.sina.com.cn/w/n/2013-04-26/1433703321.shtml','http://games.sina.com.cn/w/n/2013-04-26/1433703320.shtml','http://games.sina.com.cn/w/n/2013-04-26/1429703318.shtml','http://games.sina.com.cn/w/n/2013-04-26/1429703317.shtml','http://games.sina.com.cn/w/n/2013-04-26/1409703297.shtml','http://games.sina.com.cn/w/n/2013-04-26/1406703296.shtml','http://games.sina.com.cn/w/n/2013-04-26/1402703292.shtml','http://games.sina.com.cn/w/n/2013-04-26/1353703286.shtml','http://games.sina.com.cn/w/n/2013-04-26/1348703284.shtml','http://games.sina.com.cn/w/n/2013-04-26/1327703275.shtml','http://games.sina.com.cn/w/n/2013-04-26/1239703265.shtml','http://games.sina.com.cn/w/n/2013-04-26/1238703264.shtml','http://games.sina.com.cn/w/n/2013-04-26/1231703262.shtml','http://games.sina.com.cn/w/n/2013-04-26/1229703261.shtml','http://games.sina.com.cn/w/n/2013-04-26/1228703260.shtml','http://games.sina.com.cn/w/n/2013-04-26/1223703259.shtml','http://games.sina.com.cn/w/n/2013-04-26/1218703258.shtml','http://games.sina.com.cn/w/n/2013-04-26/1202703254.shtml','http://games.sina.com.cn/w/n/2013-04-26/1159703251.shtml','http://games.sina.com.cn/w/n/2013-04-26/1139703233.shtml'] def workerbee(inputlist): for x in xrange(THREAD_LIMIT): print 'Thead {0} started.'.format(x) t = spider() t.start() for i in inputlist: try: jobs.put(i, block=True, timeout=5) except: singlelock.acquire() print "The queue is full !" singlelock.release() # Wait for the threads to finish singlelock.acquire() # Acquire the lock so we can print print "Waiting for threads to finish." singlelock.release() # Release the lock jobs.join() # This command waits for all threads to finish. # while not jobs.empty(): # print jobs.get() def getTitle(url,time=10): response = urllib2.urlopen(url,timeout=time) html = response.read() response.close() reg = r'<title>(.*?)</title>' title = re.compile(reg).findall(html) title = title[0].decode('gb2312','replace').encode('utf-8') return title class spider(threading.Thread): def run(self): while 1: try: job = jobs.get(True,1) singlelock.acquire() title = getTitle(job) print 'This {0} is {1}'.format(job,title) singlelock.release() jobs.task_done() except: break; if __name__ == '__main__': workerbee(urls)
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