python爬取微信公众号文章

Python  /  管理员 发布于 7年前   194

本文实例为大家分享了python爬取微信公众号文章的具体代码，供大家参考，具体内容如下

# -*- coding: utf-8 -*-import requestsfrom bs4 import BeautifulSoupfrom requests.exceptions import RequestExceptionimport timeimport randomimport MySQLdbimport threadingimport socketimport math socket.setdefaulttimeout(60)#这里对整个socket层设置超时时间。后续文件中如果再使用到socket，不必再设置 glock = threading.Lock() #定义全局锁 CATEGORY_URL= ['http://www.we123.com/gzh/onclick/'] #获取地区分类链接all_url = [] #ALL_URLS = [] #所有详细页面链接proxy_list = [] #IP池URL = 'http://www.we123.com'PAGE_URL = [] #所有分页链接 #获取Ip池def get_ip():  headers = {'User-Agent':'Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36'}  url = 'http://http-webapi.zhimaruanjian.com'#可以使用芝麻代理，好用稳定还不贵  resp = requests.get(url,headers=headers)  obj = resp.json() #获取json ip池对象  for ip in obj:    arr = 'http://' + str(ip['ip']) + ':' + str(ip['port'])    proxy_list.append(arr) #获取页面源码函数def get_html(url):  # headers = {}  user_agent_list = [    'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.104 Safari/537.36 Core/1.53.3538.400 QQBrowser/9.6.12501.400',    'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.36',    'Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0'  ]  # user_agent = random.choice(user_agent_list)  headers = {    'User-Agent':'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.104 Safari/537.36 Core/1.53.3538.400 QQBrowser/9.6.12501.400'  }  # 代理，免费的代理只能维持一会可能就没用了，自行更换  # proxy_list = [  #   "http://27.192.185.62:3252",  # ]  # proxy_ip = random.choice(proxy_list)  # proxies = {'http': proxy_ip}  # print(str(url))  try:    resp = requests.get(url,headers=headers)    # print("72行：status_code = " + str(resp.status_code))    # print(type(resp.text))    # print(resp.url) # 请求的url    if resp.status_code == 200:      return resp    elif resp.status_code == 404:      return resp    elif resp.status_code == 500:      return resp    return resp  except RuntimeError:    print("超时")    return "error"  except ConnectionError:    print("连接超时")    return "error"  except RequestException:    print("http请求父类错误")    with open('url_exception.txt','a+', encoding='utf-8') as f:      f.write(str(url))      f.write('\n')    return "error" #获取区域分类链接def get_categoty_url():  url = 'http://www.we123.com/gzh/onclick/'  resp = get_html(url)  soup = BeautifulSoup(resp.text,'lxml')  html = soup.select('div.div-subs2 > div.divst-content > div.divst-subs > li > a')  # 获取区域分类链接  for i in html:    city = i['href'].split("/")[-1]    if (city == '海外' or city == '台湾' or city == '澳门'):      continue    url = URL + i['href']    CATEGORY_URL.append(url)  print(CATEGORY_URL)  #获取每个区域下所有分页链接def get_page_url(url):  city = url.split('/')[-1]  html = get_html(url)  if html == "error":    print("98行：connect url error")    time.sleep(random.randint(10,20))    return "error"  soup = BeautifulSoup(html.text,'lxml')  #获取总条数  all_nums = soup.select("div.page > a > b")  if len(all_nums) == 0:    return "error"  else:    all_nums = soup.select("div.page > a > b")[0].get_text()  #获取总分页数  all_pages = math.ceil((int(all_nums) / 30))  #获取所有分页链接  all_page_url = []  for i in range(0,int(all_pages)):    page_url = 'http://www.we123.com/e/action/ListInfo.php?page=' + str(i) + '&classid=45&line=30&tempid=10&orderby=onclick&myorder=0&totalnum=' + str(all_nums)    all_page_url.append(page_url)  return all_page_url # 获取所有详细页面链接def get_page_urls():    global PAGE_URL    c_url = CATEGORY_URL.pop()    print('121 行：请求链接' + c_url)    PAGE_URL = get_page_url(c_url) #获取每个区域下面的所有分页链接 # 获取所有详细页面链接def get_info_urls():  while True:    global PAGE_URL #设置全局变量    glock.acquire() #加锁    if len(PAGE_URL) == 0:      glock.release() #解锁      print('131 行：CATEGORY_URL 为空')      break    else:      p_url = PAGE_URL.pop()      print('135 行：请求链接' + p_url)      glock.release() #解锁       glock.acquire() #加锁      html = get_html(p_url)      if html == "error":        print("141行：connect url error")        time.sleep(2)        return      soup = BeautifulSoup(html.text,'lxml')      info_urls = soup.select('div.gzhRight > div.gzh_list > ul > li > a')      for x in info_urls:        i_url = URL + x['href']        ALL_URLS.append(i_url)      print("库存链接共:" + str(len(ALL_URLS)))    glock.release() #解锁#获取每一页需要的数据def get_data():  while True:    global ALL_URLS #设置全局变量    glock.acquire() #加锁    print("当前库存："+str(len(ALL_URLS)))    if len(ALL_URLS) == 0:      glock.release() #解锁      print('159 行 ：ALL_URLS 为空')      break    else:      url = ALL_URLS.pop()      print("开始抓取数据：" + url)      glock.release() #解锁      time.sleep(1) #睡眠1秒钟      html = get_html(url)      if html == "error":        print("168行：connect url error")        time.sleep(random.randint(2, 4))        return      html.encoding='utf-8' #显式地指定网页编码，一般情况可以不用      soup = BeautifulSoup(html.text,'lxml')      #公众号名称      names = soup.select('div.artcleLeft > div.xcxnry > div.xcxtop > div.xcxtop_left > div.gzhtop_logo > h1')      #微信号id      accounts = []      accounts.append(soup.select('div.artcleLeft > div.xcxnry > div.xcxtop > div.xcxtop_left > div.gzhtop_logo > p')[0])      #微信头像      imgs = soup.select('div.artcleLeft > div.xcxnry > div.xcxtop > div.xcxtop_left > div.gzhtop_logo > img')      #公众号二维码      QR_codes= soup.select('div.artcleLeft > div.xcxnry > div.xcxtop > div.xcxtop_right > img')      #介绍      descs = soup.select('div.artcleLeft > div.xcxnry > div.xcxinfo')      #公众号分类      categorys = []      category = ''      cate = soup.select('div.artcleLeft > div.xcxnry > div.xcxtop > div.xcxtop_left > div.xcx_p > span > a')      if not len(cate) == 0:        category = cate[0].get_text()      else:        category = '综合'      glock.acquire() #加锁      for name,account,img,QR_code,desc in zip(names,accounts,imgs,QR_codes,descs):        data = {          'name':name.get_text(),          'category':category,          'account':account.get_text().split("：")[-1],          'img':img['src'],          'QR_code':QR_code['src'],          'desc':desc.get_text()        }        add_data(data,url)      glock.release() #解锁#添加数据def add_data(data,url):  con = MySQLdb.connect('127.0.0.1','root','root','test',charset="utf8",use_unicode=True)  cursor = con.cursor()  # exit()  insert_sql = """    insert ignore into weixin5(w_name,category,account,img,QR_code,introduce)    VALUES (%s,%s,%s,%s,%s,%s)    """  print('212行 ：' + data['name'] + '_' + data['account'] + '添加成功！-' + url)  try:    cursor.execute(insert_sql,(data['name'],data['category'],data['account'],data['img'],data['QR_code'],str(data['desc'])))    con.commit()  except:    ALL_URLS.insert(0,url)    print("218行：" + URL + '插入失败')    con.rollback()  con.close() # 将时间字符串转化为时间戳def time_to(dt):  timeArray = time.strptime(dt, "%Y年%m月%d日")  timestamp = int(time.mktime(timeArray))  return timestamp #启动多线程爬取def main():  for x in range(3):    th = threading.Thread(target=get_info_urls)    th.start()     # get_info_urls()  time.sleep(3)  for x in range(5):    th = threading.Thread(target=get_data)    th.start() if __name__ == '__main__':  # 计时  t1 = time.time()  # 调用函数  get_ip() #获取ip池  get_page_urls()  time.sleep(2)  # get_categoty_url()  main()  print(time.time() - t1)

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