爬取手游网站游戏详情和评论（MQ+多线程）

本文旨在交流学习，勿作他用，否则后果自负
环境 linux+pycharm+anaconda

import re
import requests
import random
import json
import threading
from queue import Queue
import time
from lxml import etree
#生产者

USER_AGENTS = [
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AcooBrowser; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; Acoo Browser; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR 3.0.04506)",
    "Mozilla/4.0 (compatible; MSIE 7.0; AOL 9.5; AOLBuild 4337.35; Windows NT 5.1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)",
    "Mozilla/5.0 (Windows; U; MSIE 9.0; Windows NT 9.0; en-US)",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; Win64; x64; Trident/5.0; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 2.0.50727; Media Center PC 6.0)",
    "Mozilla/5.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; .NET CLR 1.0.3705; .NET CLR 1.1.4322)",
    "Mozilla/4.0 (compatible; MSIE 7.0b; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727; InfoPath.2; .NET CLR 3.0.04506.30)",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN) AppleWebKit/523.15 (KHTML, like Gecko, Safari/419.3) Arora/0.3 (Change: 287 c9dfb30)",
    "Mozilla/5.0 (X11; U; Linux; en-US) AppleWebKit/527+ (KHTML, like Gecko, Safari/419.3) Arora/0.6",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.2pre) Gecko/20070215 K-Ninja/2.1.1",
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-CN; rv:1.9) Gecko/20080705 Firefox/3.0 Kapiko/3.0",
    "Mozilla/5.0 (X11; Linux i686; U;) Gecko/20070322 Kazehakase/0.4.5",
    "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.8) Gecko Fedora/1.9.0.8-1.fc10 Kazehakase/0.5.6",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.56 Safari/535.11",
    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3) AppleWebKit/535.20 (KHTML, like Gecko) Chrome/19.0.1036.7 Safari/535.20",
    "Opera/9.80 (Macintosh; Intel Mac OS X 10.6.8; U; fr) Presto/2.9.168 Version/11.52",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/536.11 (KHTML, like Gecko) Chrome/20.0.1132.11 TaoBrowser/2.0 Safari/536.11",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.71 Safari/537.1 LBBROWSER",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; LBBROWSER)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E; LBBROWSER)",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/535.11 (KHTML, like Gecko) Chrome/17.0.963.84 Safari/535.11 LBBROWSER",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
    "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E; QQBrowser/7.0.3698.400)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; Trident/4.0; SV1; QQDownload 732; .NET4.0C; .NET4.0E; 360SE)",
    "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; QQDownload 732; .NET4.0C; .NET4.0E)",
    "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.1; WOW64; Trident/5.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0; .NET4.0C; .NET4.0E)",
    "Mozilla/5.0 (Windows NT 5.1) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.1 (KHTML, like Gecko) Chrome/21.0.1180.89 Safari/537.1",
    "Mozilla/5.0 (iPad; U; CPU OS 4_2_1 like Mac OS X; zh-cn) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5",
    "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.0b13pre) Gecko/20110307 Firefox/4.0b13pre",
    "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0",
    "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.64 Safari/537.11",
    "Mozilla/5.0 (X11; U; Linux x86_64; zh-CN; rv:1.9.2.10) Gecko/20100922 Ubuntu/10.10 (maverick) Firefox/3.6.10"
]

HEADER = {
    
    'User-Agent': random.choice(USER_AGENTS),
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
    'Accept-Language': 'en-US,en;q=0.5',
    'Connection': 'keep-alive',
    'Accept-Encoding': 'gzip, deflate',
}


class Productthread(threading.Thread):
    #继承父类的init,初始化子类参数：
    def __init__(self, name, page_queue):
        # threading.Thread.__init__(self)
        super().__init__()
        self.name = name
        self.q = page_queue

    def run(self):
        #防止偷懒，只干一个任务就退出；
        while True:
            if self.q.empty():
                break
            else:
                try:
                    key = self.q.get(block=False)

                    game_r = requests.get(url=key, headers=HEADER, timeout=50)
                    game_res = bytes(game_r.text, game_r.encoding).decode('utf-8', 'ignore')

                    response_queue.put(game_res)
                except:
                    pass




#消费者：解析页面
class Consumerthread(threading.Thread):
    #继承父类的init,初始化子类参数：
    def __init__(self, name):
        super().__init__()
        self.name = name

    def run(self):
        #防止偷懒，只干一个任务就退出；
        while True:
            #当response任务队列为空，并且生产者都死了，没有人再生产response，退出
            if response_queue.empty() and flag:
                break
            else:


                try:
                    #(1)获取任务
                    response = response_queue.get()
                    if response[0]=='{':
                       

                        respon=json.loads(response)

                        comment_list=respon.get('content','notfond')
                        for j in comment_list:
                            id_list=j['id']
                            username_list=j['username']
                            uid_list=j['uid']
                            img_list="https:"+j['avatar']
                            timeStamp = int(j['timeu'])
                            timeArray = time.localtime(timeStamp)
                            time_list = time.strftime("%Y--%m--%d %H:%M:%S", timeArray)
                            comment=j['comment']
                            good_num=j['good_num']
                            num=j['num']


                            print(id_list,username_list,uid_list,img_list,time_list,comment,good_num,num)
                    else:

                        game_d = etree.HTML(response)
                        name_list = game_d.xpath(
                            r"/html/body/div[1]/div[3]/div[1]/div[1]/div[1]/div/div[1]/h1/text()")  # 名字
                        logo_list = game_d.xpath(r'/html/body/div[1]/div[3]/div[1]/div[1]/div[1]/div/img/@src')  # 图
                        introduce_list = game_d.xpath(
                            r'.//div[@class="txtArea"]/div[@class="txtCon"]/div[not(@class or @id)]/text()')  # 介绍
                        score_list = game_d.xpath(
                            r'/html/body/div[1]/div[3]/div[1]/div[1]/div[1]/div/div[2]/div/p[2]/text()')  # 评分
                        comment_count_list = game_d.xpath(
                            r'/html/body/div[1]/div[3]/div[1]/div[1]/div[1]/div/div[2]/div/p[4]/text()')  # 评论人数
                        if logo_list[0]=="h":
                            logo=logo_list[0]
                        else:
                            logo='https:'+logo_list[0]


                        print(name_list[0], id_list[0],logo, introduce_list[0], score_list[0], comment_count_list[0])

                except:
                    pass





if __name__ == '__main__':

    #线程锁：
    lock = threading.Lock()

    ##1.消费者队列：
    response_queue = Queue()
    flag = False
    start_time = time.time()

    #2.创建生产者任务队列：
    page_queue = Queue()
    try:
        url = 'https://www.3839.com/top/hot.html'
        r = requests.get(url=url, headers=HEADER, timeout=50)
        res = bytes(r.text, r.encoding).decode('utf-8', 'ignore')
        data = etree.HTML(res)
        game_url_list = data.xpath('/html/body/div[1]/div[4]/ul/li/a/@href')
        for i in game_url_list:
            game_url = 'https:' + i

            page_queue.put(game_url)

            id_list = re.compile(r'//www.3839.com/a/(.*).htm').findall(i)  # id




            for k in range(1, 100):
                xq_url = 'https://www.3839.com/cdn/comment/view_v2-ac-json-pid-1-fid-{}-p-{}-order-1-htmlsafe-1-urltype-1-audit-1.htm'.format(id_list[0],k)
                page_queue.put(xq_url)





        #3.起生产者线程：
        crawl_name = str([i for i in range(1,16)])
        pthread_list = []
        for name in crawl_name:
            crawl = Productthread(name, page_queue)
            crawl.start()
            pthread_list.append(crawl)

        #4.起消费者线程：
        consumer_name = str([i for i in range(1,15)])
        cthread_list =[]
        for name in consumer_name:
            crawl = Consumerthread(name)
            crawl.start()
            cthread_list.append(crawl)


        #阻塞主线程
        for thread in pthread_list:
            thread.join()

        flag = True  #表示生产者线程都死光了：

        for thread in cthread_list:
            thread.join()

        end_time = time.time()
    except:
        pass