Python可配置爬虫_自定义IP+数据库+日志+分类+分页(代理IP破解反爬虫)

麻雀虽小五脏俱全

这篇博客仅仅200行代码,却涵盖了Python很多知识面

图形化界面+日志打印文件+代理IP+定时器+数据库连接+异常捕获…

import requests
from bs4 import BeautifulSoup  # 用来解析网页
import uuid
import pymysql
import datetime
from fake_useragent import UserAgent
import time  # 导入时间隔
from pymysql import  OperationalError
import easygui
from tkinter import messagebox
from tkinter import *

from requests.exceptions import ProxyError

top = Tk()
top.withdraw()

cookk = {
     
    'Cookie': 'deviceIdRenew=1; Hm_lvt_91cf34f62b9bedb16460ca36cf192f4c=1606462198,1606544088,1606547040,1606720814; deviceId=a3f148f-05f0-42d7-b8e5-e29d1f0f1; sessionId=S_0KI4880CAX77BO85; lmvid=d10147ae8706720112b5ed4fae4735a2; lmvid.sig=aaLOZZvjSRmxcxpc4je4nRzkSN_olI3w-q2rW9zTHs4; hnUserTicket=fa6e3cd1-65c0-485a-9557-26dc9b7682ac; hnUserId=267459990; Hm_lpvt_91cf34f62b9bedb16460ca36cf192f4c=1606722342'}

headers = {
     
    'Host': 'www.cnhnb.com',
    'Referer': 'https://www.cnhnb.com/hangqing/cdlist-0-0-0-0-0-1/',
    'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36',
}


def getTime():
    # 获取现在时间
    now_time = datetime.datetime.now()
    # 获取明天时间
    next_time = now_time + datetime.timedelta(days=+1)
    next_year = next_time.date().year
    next_month = next_time.date().month
    next_day = next_time.date().day
    # 获取明天3点时间
    next_time = datetime.datetime.strptime(str(next_year) + "-" + str(next_month) + "-" + str(next_day) + " 03:00:00",
                                           "%Y-%m-%d %H:%M:%S")
    timer_start_time = (next_time - now_time).total_seconds()
    return timer_start_time;


class Logger(object):
    def __init__(self, filename='default.log', stream=sys.stdout):
        self.terminal = stream
        self.log = open(filename, 'a')

    def write(self, message):
        self.terminal.write(message)
        self.log.write(message)

    def flush(self):
        pass


# 将控制台的信息打印到日志文件中
sys.stdout = Logger(stream=sys.stdout)
(host, db, user, passwd) = easygui.multpasswordbox('惠农网价格爬虫脚本', 'Python爬取中心',
                                                   fields=['请输入数据库地址(默认本地地址)', '请输入数据库名称(默认zhang)',
                                                           '请输入数据库账号(默认root)',
                                                           '请输入数据库密码(默认root)', ],
                                                   values=['127.0.0.1', 'zhang', 'root', 'root'])
(ipList, start, end) = easygui.multenterbox('惠农网价格爬虫脚本', 'Python爬取中心',
                                            fields=['请输入ip:端口号,并用逗号隔开(ip个数=页码数)', '请输入要爬取的起始页(开始页)', '请输入要爬取的起始页(结束页)'],
                                            values=['', '', ''])
fenlei = easygui.multchoicebox(msg="请选择你要爬取的分类(支持多选)", title="分类",
                               choices=("水果", "蔬菜", "禽畜肉蛋", "水产", "农副加工", "粮油米面", "种子种苗", "苗木花草"))
print(f'这个集合是{ipList}')
# 字符串转数组
bb = ipList.split(',')
# 创建IP数组
IPlILI = [{
     "https": "http://" + i} for i in bb]


def getPrice():
    try:
        conn = pymysql.connect(host=host, user=user, passwd=passwd, db=db, charset='utf8')
        cur = conn.cursor()
        messagebox.showinfo("提示", "数据库已连接")
        print("------爬虫程序开始------")
    except OperationalError:
        messagebox.showwarning("提示", "输入的数据库账号或密码错误")
        return
    # 定义一个ip长度
    qqqLen = int(len(bb))

    print(f'这个IP数组的长度是{qqqLen}')
    www = 0
    types = []
    headers["User-Agent"] = UserAgent().random
    if '水果' in fenlei:
        types.append(2003191)
    if '蔬菜' in fenlei:
        types.append(2003192)
    if '禽畜肉蛋' in fenlei:
        types.append(2003193)
    if '水产' in fenlei:
        types.append(2003194)
    if '农副加工' in fenlei:
        types.append(2003195)
    if '粮油米面' in fenlei:
        types.append(2003196)
    if '种子种苗' in fenlei:
        types.append(2003197)
    if '苗木花草' in fenlei:
        types.append(2003198)
    if '中药材' in fenlei:
        types.append(2003200)
    for inx, type in enumerate(types):
        for i in range(int(start), int(end) + 1):  # 爬取第一页到第3页的数据
            # 代理IP
            if www == qqqLen:
                print('进来了')
                print(www)
                print(qqqLen)
                www = 0
            uull = IPlILI[www]
            # 如果重复了ip那就返回重新来
            print(f'使用的ip是{uull},正在抓取的分类是:{fenlei[inx]},所在页数是:{i}')
            try:
                resp = requests.get(f"https://www.cnhnb.com/hangqing/cdlist-{type}-0-0-0-0-{i}", proxies=uull,
                                    headers=headers, cookies=cookk, timeout=30)
                page_one = BeautifulSoup(resp.text, "html.parser")  # 通过html来,把请求的网页打印出来
                # 找到表格数据(table)
                dd = page_one.find('div', class_='quotation-content-list').find_all('li')
            except AttributeError:
                continue
            except ProxyError:
                print(f'第{i}个IP无法连接')
                # 移出没用的ip
                IPlILI.remove(uull)
                print('第一次移出IP成功')
                # 添加需要替换的IP
                pp = easygui.multenterbox('替换IP', 'Python爬取中心',
                                          fields=['请输入要替换的IP(IP+端口号)'],
                                          values=[''])
                addUrl = {
     "https": "http://" + pp[0]}
                IPlILI.append(addUrl)
                print('第一次添加IP成功')
                try:
                    resp = requests.get(f"https://www.cnhnb.com/hangqing/cdlist-{type}-0-0-0-0-{i}", proxies=addUrl,
                                        headers=headers, cookies=cookk, timeout=30)
                    page_one = BeautifulSoup(resp.text, "html.parser")  # 通过html来,把请求的网页打印出来
                    # 找到表格数据(table)
                    dd = page_one.find('div', class_='quotation-content-list').find_all('li')
                except ProxyError:
                    print(f'新添加的IP依旧无法连接')
                    # 移出没用的ip
                    IPlILI.remove(addUrl)
                    print('第二次移出IP成功')
                    # 添加需要替换的IP
                    pp = easygui.multenterbox('第二次替换IP', 'Python爬取中心',
                                              fields=['请输入要替换的IP(IP+端口号)'],
                                              values=[''])
                    addTwoUrl = {
     "https": "http://" + pp[0]}
                    IPlILI.append(addTwoUrl)
                    print('第二次添加IP成功')
                    resp = requests.get(f"https://www.cnhnb.com/hangqing/cdlist-{type}-0-0-0-0-{i}", proxies=addTwoUrl,
                                        headers=headers, cookies=cookk)
                    page_one = BeautifulSoup(resp.text, "html.parser")  # 通过html来,把请求的网页打印出来
                    # 找到表格数据(table)
                    dd = page_one.find('div', class_='quotation-content-list').find_all('li')
            except Exception:
                continue
            if dd is None:
                print("要回去了")
                continue
            for ss in dd:  # tr是每一行内容,在所有的行中,遍历每一列的内容
                shopDate = ss.findAll('span')[0].text.strip()
                if str(datetime.date.today() - datetime.timedelta(days=1))[8:10] == str(shopDate.split('-')[2]):
                    productId = str(uuid.uuid1())
                    name = ss.findAll('span')[1].text.strip()
                    pru = ss.findAll('span')[2].text.strip()
                    province = ss.findAll('span')[2].text.strip()[0:2]
                    # 截取省
                    if '内蒙' in str(pru) or '黑龙' in str(pru) or '台湾' in str(pru):
                        province = ss.findAll('span')[2].text.strip()[0:3]
                    # 市区
                    # 截取区
                    print(pru)
                    if '自治州' in str(pru):
                        area = str(ss.findAll('span')[2].text.split("自治州")[1])
                    elif '自治县' in str(pru):
                        area = str(ss.findAll('span')[2].text.split("自治县")[1])
                    elif '地区' in str(pru):
                        area = str(ss.findAll('span')[2].text.split("地区")[1])
                    else:
                        try:
                            area = str(ss.findAll('span')[2].text.split("市")[1])
                        except IndexError:
                            print('这么奇葩的地市666666666')
                    print(area)
                    if type == 2003191:
                        gry = "水果"
                    elif type == 2003192:
                        gry = "蔬菜"
                    elif type == 2003193:
                        gry = "禽畜肉蛋"
                    elif type == 2003194:
                        gry = "水产"
                    elif type == 2003195:
                        gry = "农副加工"
                    elif type == 2003196:
                        gry = "粮油米面"
                    elif type == 2003197:
                        gry = "种子种苗"
                    elif type == 2003198:
                        gry = "苗木花草"
                    else:
                        gry = "中药材"
                    price = ss.findAll('span')[3].text[0:-3]
                    updown = ss.findAll('span')[4].text.strip()
                    unit = ss.findAll('span')[3].text[-3:]
                    sql = "insert into p_price_data(id,name,area,price,unit,creatime,province,up_down,type) VALUES (%s,%s,%s,%s,%s,%s,%s,%s,%s)"
                    cur.execute(sql, (productId, name, area, price, unit, shopDate, province, updown, gry))
                    # print("sql已执行")
            print(f"分类为:{fenlei[inx]}的第{i}个页面数据抓取完毕")
            www += 1
            conn.commit()
            time.sleep(2)  # 防止服务器蹦了,间隔一秒钟
        time.sleep(2)
    cur.close()
    conn.close()


# 爬取供应跟舆情和特色
if __name__ == '__main__':
    print("----------------开始爬取价格----------------")
    getPrice();  # 更新较慢,每天更新前一天的
    print("----------------价格爬取结束----------------")

代码写的很简单,注解也很详细,每一步都有说明

只看代码有点枯燥,运行一下,看下效果图o(￣︶￣)o

就是这么人性化,解决IP问题

嗯,简单暴力的爬取反爬网站的数据