爬取微博网页不断出现重复，可赏分
我使用以下代码，爬取微博网页，但是运行时产生的结果不断重复前三十个话题，我认为是这部分代码出了问题，希望有大佬能帮助一下。这是我使用的代码
# -*- coding: utf-8 -*-
import requests,random,re
import time
import os
import csv
import sys
import json
import importlib
from fake_useragent import UserAgent
from lxml import etree
importlib.reload(sys)
startTime = time.time() #记录起始时间
#--------------------------------------------文件存储-----------------------------------------------------
path = "E:\DESKTOP\wenbenwajuewenjianjia\weiboComments.csv"
csvfile = open(path, 'a', newline='', encoding = 'utf-8-sig')
writer = csv.writer(csvfile)
#csv头部
writer.writerow(('话题链接','话题内容','楼主ID', '楼主昵称', '楼主性别','发布日期',
'发布时间', '转发量','评论量','点赞量', '评论者ID', '评论者昵称',
'评论者性别', '评论日期', '评论时间','评论内容'))
#设置heades
headers = {
'Cookie': '_T_WM=22822641575; H5_wentry=H5; backURL=https%3A%2F%2Fm.weibo.cn%2F; ALF=1584226439; MLOGIN=1; SUBP=0033WrSXqPxfM725Ws9jqgMF55529P9D9W5RJaVYrb.BEuOvUQ8Ca2OO5JpX5K-hUgL.FoqESh-7eKzpShM2dJLoIp7LxKML1KBLBKnLxKqL1hnLBoMceoBfeh2EeKBN; SCF=AnRSOFp6QbWzfH1BqL4HB8my8eWNC5C33KhDq4Ko43RUIzs6rjJC49kIvz5_RcOJV2pVAQKvK2UbAd1Uh6j0pyo.; SUB=_2A25zQaQBDeRhGeBM71cR8SzNzzuIHXVQzcxJrDV6PUJbktAKLXD-kW1NRPYJXhsrLRnku_WvhsXi81eY0FM2oTtt; SUHB=0mxU9Kb_Ce6s6S; SSOLoginState=1581634641; WEIBOCN_FROM=1110106030; XSRF-TOKEN=dc7c27; M_WEIBOCN_PARAMS=oid%3D4471980021481431%26luicode%3D20000061%26lfid%3D4471980021481431%26uicode%3D20000061%26fid%3D4471980021481431',
'Referer': 'https://m.weibo.cn/detail/4312409864846621',
'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.100 Safari/537.36',
'X-Requested-With': 'XMLHttpRequest'
}
#-----------------------------------爬取战疫情首页的每个主题的ID------------------------------------------
comments_ID = []
def get_title_id():
for page in range(1,4):#每个页面大约有18个话题
headers = {
"User-Agent" : UserAgent().chrome #chrome浏览器随机代理
}
time.sleep(1)
#该链接通过抓包获得
api_url = 'https://m.weibo.cn/api/feed/trendtop?containerid=102803_ctg1_600059_-_ctg1_600059&page=' + str(page)
print(api_url)
rep = requests.get(url=api_url, headers=headers)
#获取ID值并写入列表comment_ID中
for json in rep.json()['data']['statuses']:
comment_ID = json['id']
comments_ID.append(comment_ID)
#-----------------------------------爬取战疫情每个主题的详情页面------------------------------------------
def spider_title(comment_ID):
try:
article_url = 'https://m.weibo.cn/detail/'+ comment_ID
print ("article_url = ", article_url)
html_text = requests.get(url=article_url, headers=headers).text
#话题内容
find_title = re.findall('.*?"text": "(.*?)",.*?', html_text)
title_text = re.sub('<(S*?)[^>]*>.*?|<.*? />', '', find_title) #正则匹配掉html标签
print ("title_text = ", title_text)
#楼主ID
title_user_id = re.findall('.*?"id": (.*?),.*?', html_text)
print ("title_user_id = ", title_user_id)
#楼主昵称
title_user_NicName = re.findall('.*?"screen_name": "(.*?)",.*?', html_text)
print ("title_user_NicName = ", title_user_NicName)
#楼主性别
title_user_gender = re.findall('.*?"gender": "(.*?)",.*?', html_text)
print ("title_user_gender = ", title_user_gender)
#发布时间
created_title_time = re.findall('.*?"created_at": "(.*?)".*?', html_text).split(' ')
#日期
if 'Mar' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '03', created_title_time)
elif 'Feb' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '02', created_title_time)
elif 'Jan' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '01', created_title_time)
elif 'Apr' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '04', created_title_time)
elif 'May' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '05', created_title_time)
elif 'Jun' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '06', created_title_time)
elif 'Jul' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '07', created_title_time)
elif 'Aug' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '08', created_title_time)
elif 'Sep' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '09', created_title_time)
elif 'Oct' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '10', created_title_time)
elif 'Nov' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '11', created_title_time)
elif 'Dec' in created_title_time:
title_created_YMD = "{}/{}/{}".format(created_title_time[-1], '12', created_title_time)
else:
print ('该时间不在疫情范围内，估计数据有误！URL = ')
pass
print ("title_created_YMD = ", title_created_YMD)
#发布时间
add_title_time = created_title_time
print ("add_title_time = ", add_title_time)
#转发量
reposts_count = re.findall('.*?"reposts_count": (.*?),.*?', html_text)
print ("reposts_count = ", reposts_count)
#评论量
comments_count = re.findall('.*?"comments_count": (.*?),.*?', html_text)
print ("comments_count = ", comments_count)
#点赞量
attitudes_count = re.findall('.*?"attitudes_count": (.*?),.*?', html_text)
print ("attitudes_count = ", attitudes_count)
comment_count = int(int(comments_count) / 20) #每个ajax一次加载20条数据
position1 = (article_url, title_text, title_user_id, title_user_NicName,title_user_gender, title_created_YMD, add_title_time, reposts_count, comments_count, attitudes_count, " ", " ", " ", " "," ", " ")
#写入数据
writer.writerow((position1))
return comment_count
except:
pass
#-------------------------------------------------抓取评论信息---------------------------------------------------
#comment_ID话题编号
def get_page(comment_ID, max_id, id_type):
params = {
'max_id': max_id,
'max_id_type': id_type
}
url = ' https://m.weibo.cn/comments/hotflow?id={}&mid={}&max_id'.format(comment_ID, comment_ID)
try:
r = requests.get(url, params=params, headers=headers)
if r.status_code == 200:
return r.json()
except requests.ConnectionError as e:
print('error', e.args)
pass
#-------------------------------------------------抓取评论item最大值---------------------------------------------------
def parse_page(jsondata):
if jsondata:
items = jsondata.get('data')
item_max_id = {}
item_max_id['max_id'] = items['max_id']
item_max_id['max_id_type'] = items['max_id_type']
return item_max_id
#-------------------------------------------------抓取评论信息---------------------------------------------------
def write_csv(jsondata):
for json in jsondata['data']['data']:
#用户ID
user_id = json['user']['id']
# 用户昵称
user_name = json['user']['screen_name']
# 用户性别,m表示男性，表示女性
user_gender = json['user']['gender']
#获取评论
comments_text = json['text']
comment_text = re.sub('<(S*?)[^>]*>.*?|<.*? />', '', comments_text) #正则匹配掉html标签
# 评论时间
created_times = json['created_at'].split(' ')
if 'Feb' in created_times:
created_YMD = "{}/{}/{}".format(created_times[-1], '02', created_times)
elif 'Jan' in created_times:
created_YMD = "{}/{}/{}".format(created_times[-1], '01', created_times)
else:
print ('该时间不在疫情范围内，估计数据有误！')
pass
created_time = created_times #评论时间时分秒
#if len(comment_text) != 0:
position2 = (" ", " ", " ", " "," ", " ", " ", " ", " ", " ", user_id, user_name, user_gender, created_YMD, created_time, comment_text)
writer.writerow((position2))#写入数据
#print (user_id, user_name, user_gender, created_YMD, created_time)
#-------------------------------------------------主函数---------------------------------------------------
def main():
count_title = len(comments_ID)
for count, comment_ID in enumerate(comments_ID):
print ("正在爬取第%s个话题，一共找到个%s话题需要爬取"%(count+1, count_title))
#maxPage获取返回的最大评论数量
maxPage = spider_title(comment_ID)
print ('maxPage = ', maxPage)
m_id = 0
id_type = 0
if maxPage != 0: #小于20条评论的不需要循环
try:
#用评论数量控制循环
for page in range(0, maxPage):
#自定义函数-抓取网页评论信息
jsondata = get_page(comment_ID, m_id, id_type)
#自定义函数-写入CSV文件
write_csv(jsondata)
#自定义函数-获取评论item最大值
results = parse_page(jsondata)
time.sleep(1)
m_id = results['max_id']
id_type = results['max_id_type']
except:
pass
print ("--------------------------分隔符---------------------------")
csvfile.close()
if __name__ == '__main__':
#获取话题ID
get_title_id()
#主函数操作
main()
#计算使用时间
endTime = time.time()
useTime = (endTime-startTime) / 60
print("该次所获的信息一共使用%s分钟"%useTime)
这是我认为有问题的部分
comments_ID = []
def get_title_id():
for page in range(1,477):#每个页面大约有18个话题
headers = {
"User-Agent" : UserAgent().chrome #chrome浏览器随机代理
}
time.sleep(1)
#该链接通过抓包获得
api_url = 'https://m.weibo.cn/api/feed/trendtop?containerid=102803_ctg1_600059_-_ctg1_600059&page=' + str(page)
print(api_url)
rep = requests.get(url=api_url, headers=headers)
#获取ID值并写入列表comment_ID中
for json in rep.json()['data']['statuses']:
comment_ID = json['id']
comments_ID.append(comment_ID)
结果放在图片里，不断地重复那几个网页
（怎么用鱼币悬赏感谢啊我不会）
还有那个URL里 /api/feed 是哪里来的，希望大佬解答 赤龙将 发表于 2021-11-25 20:13
还有那个URL里 /api/feed 是哪里来的，希望大佬解答
建议使用vsode或者pyharm编写代码，然后i可以单步执行，同时可以看到每一步时所有变量的值，这总问题一般都可以通过这样的方式解决
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