Python如何爬取微信公眾號文章和評論(基于 Fiddler 抓包分析)

更新時間：2019年06月28日 14:43:46 作者：happyJared

這篇文章主要介紹了Python如何爬取微信公眾號文章和評論(基于 Fiddler 抓包分析),文中通過示例代碼介紹的非常詳細(xì)，對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友可以參考下

背景說明

感覺微信公眾號算得是比較難爬的平臺之一，不過一番折騰之后還是小有收獲的。沒有用Scrapy(估計爬太快也有反爬限制)，但后面會開始整理寫一些實戰(zhàn)出來。簡單介紹下本次的開發(fā)環(huán)境：

python3
requests
psycopg2 (操作postgres數(shù)據(jù)庫)

抓包分析

本次實戰(zhàn)對抓取的公眾號沒有限制，但不同公眾號每次抓取之前都要進(jìn)行分析。打開Fiddler，將手機(jī)配置好相關(guān)代理，為避免干擾過多，這里給Fiddler加個過濾規(guī)則，只需要指定微信域名mp.weixin.qq.com就好：

Fiddler配置Filter規(guī)則

平時關(guān)注的公眾號也比較多，本次實戰(zhàn)以“36氪”公眾號為例，繼續(xù)往下看：

“36氪”公眾號

公眾號右上角 -> 全部消息

在公眾號主頁，右上角有三個實心圓點(diǎn)，點(diǎn)擊進(jìn)入消息界面，下滑找到并點(diǎn)擊“全部消息”，往下請求加載幾次歷史文章，然后回到Fiddler界面，不出意外的話應(yīng)該可以看到這幾次請求，可以看到返回的數(shù)據(jù)是json格式的，同時文章數(shù)據(jù)是以json字符串的形式定義在general_msg_list字段中：

公眾號文章列表抓包請求

分析文章列表接口

把請求URL和Cookie貼上來進(jìn)行分析：

https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&__biz=MzI2NDk5NzA0Mw==&f=json&offset=10&count=10&is_ok=1&scene=126&uin=777&key=777&pass_ticket=QhOypNwH5dAr5w6UgMjyBrTSOdMEUT86vWc73GANoziWFl8xJd1hIMbMZ82KgCpN&wxtoken=&appmsg_token=971_LwY7Z%252BFBoaEv5z8k_dFWfJkdySbNkMR4OmFxNw~~&x5=1&f=json
Cookie: pgv_pvid=2027337976; pgv_info=ssid=s3015512850; rewardsn=; wxtokenkey=777; wxuin=2089823341; devicetype=android-26; version=26070237; lang=zh_CN;pass_ticket=NDndxxaZ7p6Z9PYulWpLqMbI0i3ULFeCPIHBFu1sf5pX2IhkGfyxZ6b9JieSYRUy;wap_sid2=CO3YwOQHEogBQnN4VTNhNmxQWmc3UHI2U3kteWhUeVExZHFVMnN0QXlsbzVJRUJKc1pkdVFUU2Y5UzhSVEtOZmt1VVlYTkR4SEllQ2huejlTTThJWndMQzZfYUw2SldLVGVMQUthUjc3QWdVMUdoaGN0Nml2SU05cXR1dTN2RkhRUVd1V2Y3SFJ5d01BQUF+fjCB1pLcBTgNQJVO

下面把重要的參數(shù)說明一下，沒提到的說明就不那么重要了：

__biz：相當(dāng)于是當(dāng)前公眾號的id(唯一固定標(biāo)志)
offset：文章數(shù)據(jù)接口請求偏移量標(biāo)志(從0開始)，每次返回的json數(shù)據(jù)中會有下一次請求的offset，注意這里并不是按某些規(guī)則遞增的
count：每次請求的數(shù)據(jù)量(親測最多可以是10)
pass_ticket：可以理解是請求票據(jù)，而且隔一段時間后(大概幾個小時)就會過期，這也是為什么微信公眾號比較難按固定規(guī)則進(jìn)行抓取的原因
appmsg_token：同樣理解為非固定有過期策略的票據(jù)
Cookie：使用的時候可以把整段貼上去，但最少僅需要wap_sid2這部分

是不是感覺有點(diǎn)麻煩，畢竟不是要搞大規(guī)模專業(yè)的爬蟲，所以單就一個公眾號這么分析下來，還是可以往下繼續(xù)的，貼上截取的一段json數(shù)據(jù)，用于設(shè)計文章數(shù)據(jù)表：

{
"ret": 0,
"errmsg": "ok",
"msg_count": 10,
"can_msg_continue": 1,
"general_msg_list": "{\"list\":[{\"comm_msg_info\":{\"id\":1000005700,\"type\":49,\"datetime\":1535100943,\"fakeid\":\"3264997043\",\"status\":2,\"content\":\"\"},\"app_msg_ext_info\":{\"title\":\"金融危機(jī)又十年：錢荒之下，二手基金迎來高光時刻\",\"digest\":\"退出永遠(yuǎn)是基金的主旋律。\",\"content\":\"\",\"fileid\":100034824,\"content_url\":\"http:\\/\\/mp.weixin.qq.com\\/s?__biz=MzI2NDk5NzA0Mw==&mid=2247518479&idx=1&sn=124ab52f7478c1069a6b4592cdf3c5f5&chksm=eaa6d8d3ddd151c5bb95a7ae118de6d080023246aa0a419e1d53bfe48a8d9a77e52b752d9b80&scene=27#wechat_redirect\",\"source_url\":\"\",\"cover\":\"http:\\/\\/mmbiz.qpic.cn\\/mmbiz_jpg\\/QicyPhNHD5vYgdpprkibtnWCAN7l4ZaqibKvopNyCWWLQAwX7QpzWicnQSVfcBZmPrR5YuHS45JIUzVjb0dZTiaLPyA\\/0?wx_fmt=jpeg\",\"subtype\":9,\"is_multi\":0,\"multi_app_msg_item_list\":[],\"author\":\"石亞瓊\",\"copyright_stat\":11,\"duration\":0,\"del_flag\":1,\"item_show_type\":0,\"audio_fileid\":0,\"play_url\":\"\",\"malicious_title_reason_id\":0,\"malicious_content_type\":0}}]}",
"next_offset": 20,
"video_count": 1,
"use_video_tab": 1,
"real_type": 0
}

可以簡單抽取想要的數(shù)據(jù)，這里將文章表結(jié)構(gòu)定義如下，順便貼上建表的SQL語句：

文章數(shù)據(jù)表

-- ----------------------------
-- Table structure for tb_article
-- ----------------------------
DROP TABLE IF EXISTS "public"."tb_article";
CREATE TABLE "public"."tb_article" (
"id" serial4 PRIMARY KEY,
"msg_id" int8 NOT NULL,
"title" varchar(200) COLLATE "pg_catalog"."default" NOT NULL,
"author" varchar(20) COLLATE "pg_catalog"."default",
"cover" varchar(500) COLLATE "pg_catalog"."default",
"digest" varchar(200) COLLATE "pg_catalog"."default",
"source_url" varchar(800) COLLATE "pg_catalog"."default",
"content_url" varchar(600) COLLATE "pg_catalog"."default" NOT NULL,
"post_time" timestamp(6),
"create_time" timestamp(6) NOT NULL
)
;
COMMENT ON COLUMN "public"."tb_article"."id" IS '自增主鍵';
COMMENT ON COLUMN "public"."tb_article"."msg_id" IS '消息id (唯一)';
COMMENT ON COLUMN "public"."tb_article"."title" IS '標(biāo)題';
COMMENT ON COLUMN "public"."tb_article"."author" IS '作者';
COMMENT ON COLUMN "public"."tb_article"."cover" IS '封面圖';
COMMENT ON COLUMN "public"."tb_article"."digest" IS '關(guān)鍵字';
COMMENT ON COLUMN "public"."tb_article"."source_url" IS '原文地址';
COMMENT ON COLUMN "public"."tb_article"."content_url" IS '文章地址';
COMMENT ON COLUMN "public"."tb_article"."post_time" IS '發(fā)布時間';
COMMENT ON COLUMN "public"."tb_article"."create_time" IS '入庫時間';
COMMENT ON TABLE "public"."tb_article" IS '公眾號文章表';
-- ----------------------------
-- Indexes structure for table tb_article
-- ----------------------------
CREATE UNIQUE INDEX "unique_msg_id" ON "public"."tb_article" USING btree (
"msg_id" "pg_catalog"."int8_ops" ASC NULLS LAST
);

附請求文章接口并解析數(shù)據(jù)保存到數(shù)據(jù)庫的相關(guān)代碼：

class WxMps(object):
"""微信公眾號文章、評論抓取爬蟲"""

def __init__(self, _biz, _pass_ticket, _app_msg_token, _cookie, _offset=0):
self.offset = _offset
self.biz = _biz # 公眾號標(biāo)志
self.msg_token = _app_msg_token # 票據(jù)(非固定)
self.pass_ticket = _pass_ticket # 票據(jù)(非固定)
self.headers = {
'Cookie': _cookie, # Cookie(非固定)
'User-Agent': 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 '
}
wx_mps = 'wxmps' # 這里數(shù)據(jù)庫、用戶、密碼一致(需替換成實際的)
self.postgres = pgs.Pgs(host='localhost', port='5432', db_name=wx_mps, user=wx_mps, password=wx_mps)

def start(self):
"""請求獲取公眾號的文章接口"""

offset = self.offset
while True:
api = 'https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&__biz={0}&f=json&offset={1}' \
'&count=10&is_ok=1&scene=124&uin=777&key=777&pass_ticket={2}&wxtoken=&appmsg_token' \
'={3}&x5=1&f=json'.format(self.biz, offset, self.pass_ticket, self.msg_token)

resp = requests.get(api, headers=self.headers).json()
ret, status = resp.get('ret'), resp.get('errmsg') # 狀態(tài)信息
if ret == 0 or status == 'ok':
print('Crawl article: ' + api)
offset = resp['next_offset'] # 下一次請求偏移量
general_msg_list = resp['general_msg_list']
msg_list = json.loads(general_msg_list)['list'] # 獲取文章列表
for msg in msg_list:
comm_msg_info = msg['comm_msg_info'] # 該數(shù)據(jù)是本次推送多篇文章公共的
msg_id = comm_msg_info['id'] # 文章id
post_time = datetime.fromtimestamp(comm_msg_info['datetime']) # 發(fā)布時間
# msg_type = comm_msg_info['type'] # 文章類型
# msg_data = json.dumps(comm_msg_info, ensure_ascii=False) # msg原數(shù)據(jù)
app_msg_ext_info = msg.get('app_msg_ext_info') # article原數(shù)據(jù)
if app_msg_ext_info:
# 本次推送的首條文章
self._parse_articles(app_msg_ext_info, msg_id, post_time)
# 本次推送的其余文章
multi_app_msg_item_list = app_msg_ext_info.get('multi_app_msg_item_list')
if multi_app_msg_item_list:
for item in multi_app_msg_item_list:
msg_id = item['fileid'] # 文章id
if msg_id == 0:
msg_id = int(time.time() * 1000) # 設(shè)置唯一id,解決部分文章id=0出現(xiàn)唯一索引沖突的情況
self._parse_articles(item, msg_id, post_time)
print('next offset is %d' % offset)
else:
print('Before break , Current offset is %d' % offset)
break
def _parse_articles(self, info, msg_id, post_time):
"""解析嵌套文章數(shù)據(jù)并保存入庫"""
title = info.get('title') # 標(biāo)題
cover = info.get('cover') # 封面圖
author = info.get('author') # 作者
digest = info.get('digest') # 關(guān)鍵字
source_url = info.get('source_url') # 原文地址
content_url = info.get('content_url') # 微信地址
# ext_data = json.dumps(info, ensure_ascii=False) # 原始數(shù)據(jù)
self.postgres.handler(self._save_article(), (msg_id, title, author, cover, digest,
source_url, content_url, post_time,
datetime.now()), fetch=True)
@staticmethod
def _save_article():
sql = 'insert into tb_article(msg_id,title,author,cover,digest,source_url,content_url,post_time,create_time) ' \
'values(%s,%s,%s,%s,%s,%s,%s,%s,%s)'
return sql 
if __name__ == '__main__':
biz = 'MzI2NDk5NzA0Mw==' # "36氪"
pass_ticket = 'NDndxxaZ7p6Z9PYulWpLqMbI0i3ULFeCPIHBFu1sf5pX2IhkGfyxZ6b9JieSYRUy'
app_msg_token = '971_Z0lVNQBcGsWColSubRO9H13ZjrPhjuljyxLtiQ~~'
cookie = 'wap_sid2=CO3YwOQHEogBQnN4VTNhNmxQWmc3UHI2U3kteWhUeVExZHFVMnN0QXlsbzVJRUJKc1pkdVFUU2Y5UzhSVEtOZmt1VVlYTkR4SEllQ2huejlTTThJWndMQzZfYUw2SldLVGVMQUthUjc3QWdVMUdoaGN0Nml2SU05cXR1dTN2RkhRUVd1V2Y3SFJ5d01BQUF+fjCB1pLcBTgNQJVO'
# 以上信息不同公眾號每次抓取都需要借助抓包工具做修改
wxMps = WxMps(biz, pass_ticket, app_msg_token, cookie)
wxMps.start() # 開始爬取文章

分析文章評論接口

獲取評論的思路大致是一樣的，只是會更加麻煩一點(diǎn)。首先在手機(jī)端點(diǎn)開一篇有評論的文章，然后查看Fiddler抓取的請求：

公眾號文章評論

公眾號文章評論接口抓包請求

提取其中的URL和Cookie再次分析：

https://mp.weixin.qq.com/mp/appmsg_comment?action=getcomment&scene=0&__biz=MzI2NDk5NzA0Mw==&appmsgid=2247518723&idx=1&comment_id=433253969406607362&offset=0&limit=100&uin=777&key=777&pass_ticket=NDndxxaZ7p6Z9PYulWpLqMbI0i3ULFeCPIHBFu1sf5pX2IhkGfyxZ6b9JieSYRUy&wxtoken=777&devicetype=android-26&clientversion=26070237&appmsg_token=971_dLK7htA1j8LbMUk8pvJKRlC_o218HEgwDbS9uARPOyQ34_vfXv3iDstqYnq2gAyze1dBKm4ZMTlKeyfx&x5=1&f=json
Cookie: pgv_pvid=2027337976; pgv_info=ssid=s3015512850; rewardsn=; wxuin=2089823341; devicetype=android-26; version=26070237; lang=zh_CN; pass_ticket=NDndxxaZ7p6Z9PYulWpLqMbI0i3ULFeCPIHBFu1sf5pX2IhkGfyxZ6b9JieSYRUy; wap_sid2=CO3YwOQHEogBdENPSVdaS3pHOWc1V2QzY1NvZG9PYk1DMndPS3NfbGlHM0Vfal8zLU9kcUdkWTQxdUYwckFBT3RZM1VYUXFaWkFad3NVaWFXZ28zbEFIQ2pTa1lqZktfb01vcGdPLTQ0aGdJQ2xOSXoxTVFvNUg3SVpBMV9GRU1lbnotci1MWWl5d01BQUF+fjCj45PcBTgNQAE=; wxtokenkey=777

接著分析參數(shù)：

__biz：同上
pass_ticket：同上
Cookie：同上
offset和limit：代表偏移量和請求數(shù)量，由于公眾號評論最多展示100條，所以這兩個參數(shù)也不用改它
comment_id：獲取文章評論數(shù)據(jù)的標(biāo)記id，固定但需要從當(dāng)前文章結(jié)構(gòu)(Html)解析提取
appmsgid：票據(jù)id，非固定每次需要從當(dāng)前文章結(jié)構(gòu)(Html)解析提取
appmsg_token：票據(jù)token，非固定每次需要從當(dāng)前文章結(jié)構(gòu)(Html)解析提取

可以看到最后三個參數(shù)要解析html獲取(當(dāng)初真的找了好久才想到看文章網(wǎng)頁結(jié)構(gòu))。從文章請求接口可以獲得文章地址，對應(yīng)上面的content_url字段，但請求該地址前仍需要對url做相關(guān)處理，不然上面三個參數(shù)會有缺失，也就獲取不到后面評論內(nèi)容：

def _parse_article_detail(self, content_url, article_id):
"""從文章頁提取相關(guān)參數(shù)用于獲取評論,article_id是已保存的文章id"""
try:
api = content_url.replace('amp;', '').replace('#wechat_redirect', '').replace('http', 'https')
html = requests.get(api, headers=self.headers).text
except:
print('獲取評論失敗' + content_url)
else:
# group(0) is current line
str_comment = re.search(r'var comment_id = "(.*)" \|\| "(.*)" \* 1;', html)
str_msg = re.search(r"var appmsgid = '' \|\| '(.*)'\|\|", html)
str_token = re.search(r'window.appmsg_token = "(.*)";', html)
if str_comment and str_msg and str_token:
comment_id = str_comment.group(1) # 評論id(固定)
app_msg_id = str_msg.group(1) # 票據(jù)id(非固定)
appmsg_token = str_token.group(1) # 票據(jù)token(非固定)

再回來看該接口返回的json數(shù)據(jù)，分析結(jié)構(gòu)后然后定義數(shù)據(jù)表(含SQL)：

文章評論數(shù)據(jù)表

-- ----------------------------
-- Table structure for tb_article_comment
-- ----------------------------
DROP TABLE IF EXISTS "public"."tb_article_comment";
CREATE TABLE "public"."tb_article_comment" (
"id" serial4 PRIMARY KEY,
"article_id" int4 NOT NULL,
"comment_id" varchar(50) COLLATE "pg_catalog"."default",
"nick_name" varchar(50) COLLATE "pg_catalog"."default" NOT NULL,
"logo_url" varchar(300) COLLATE "pg_catalog"."default",
"content_id" varchar(50) COLLATE "pg_catalog"."default" NOT NULL,
"content" varchar(3000) COLLATE "pg_catalog"."default" NOT NULL,
"like_num" int2,
"comment_time" timestamp(6),
"create_time" timestamp(6) NOT NULL
)
;
COMMENT ON COLUMN "public"."tb_article_comment"."id" IS '自增主鍵';
COMMENT ON COLUMN "public"."tb_article_comment"."article_id" IS '文章外鍵id';
COMMENT ON COLUMN "public"."tb_article_comment"."comment_id" IS '評論接口id';
COMMENT ON COLUMN "public"."tb_article_comment"."nick_name" IS '用戶昵稱';
COMMENT ON COLUMN "public"."tb_article_comment"."logo_url" IS '頭像地址';
COMMENT ON COLUMN "public"."tb_article_comment"."content_id" IS '評論id (唯一)';
COMMENT ON COLUMN "public"."tb_article_comment"."content" IS '評論內(nèi)容';
COMMENT ON COLUMN "public"."tb_article_comment"."like_num" IS '點(diǎn)贊數(shù)';
COMMENT ON COLUMN "public"."tb_article_comment"."comment_time" IS '評論時間';
COMMENT ON COLUMN "public"."tb_article_comment"."create_time" IS '入庫時間';
COMMENT ON TABLE "public"."tb_article_comment" IS '公眾號文章評論表';
-- ----------------------------
-- Indexes structure for table tb_article_comment
-- ----------------------------
CREATE UNIQUE INDEX "unique_content_id" ON "public"."tb_article_comment" USING btree (
"content_id" COLLATE "pg_catalog"."default" "pg_catalog"."text_ops" ASC NULLS LAST
);

萬里長征快到頭了，最后貼上這部分代碼，由于要先獲取文章地址，所以和上面獲取文章數(shù)據(jù)的代碼是一起的：

import json
import re
import time
from datetime import datetime

import requests

from utils import pgs


class WxMps(object):
"""微信公眾號文章、評論抓取爬蟲"""

def __init__(self, _biz, _pass_ticket, _app_msg_token, _cookie, _offset=0):
self.offset = _offset
self.biz = _biz # 公眾號標(biāo)志
self.msg_token = _app_msg_token # 票據(jù)(非固定)
self.pass_ticket = _pass_ticket # 票據(jù)(非固定)
self.headers = {
'Cookie': _cookie, # Cookie(非固定)
'User-Agent': 'Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 '
}
wx_mps = 'wxmps' # 這里數(shù)據(jù)庫、用戶、密碼一致(需替換成實際的)
self.postgres = pgs.Pgs(host='localhost', port='5432', db_name=wx_mps, user=wx_mps, password=wx_mps)

def start(self):
"""請求獲取公眾號的文章接口"""

offset = self.offset
while True:
api = 'https://mp.weixin.qq.com/mp/profile_ext?action=getmsg&__biz={0}&f=json&offset={1}' \
'&count=10&is_ok=1&scene=124&uin=777&key=777&pass_ticket={2}&wxtoken=&appmsg_token' \
'={3}&x5=1&f=json'.format(self.biz, offset, self.pass_ticket, self.msg_token)

resp = requests.get(api, headers=self.headers).json()
ret, status = resp.get('ret'), resp.get('errmsg') # 狀態(tài)信息
if ret == 0 or status == 'ok':
print('Crawl article: ' + api)
offset = resp['next_offset'] # 下一次請求偏移量
general_msg_list = resp['general_msg_list']
msg_list = json.loads(general_msg_list)['list'] # 獲取文章列表
for msg in msg_list:
comm_msg_info = msg['comm_msg_info'] # 該數(shù)據(jù)是本次推送多篇文章公共的
msg_id = comm_msg_info['id'] # 文章id
post_time = datetime.fromtimestamp(comm_msg_info['datetime']) # 發(fā)布時間
# msg_type = comm_msg_info['type'] # 文章類型
# msg_data = json.dumps(comm_msg_info, ensure_ascii=False) # msg原數(shù)據(jù)

app_msg_ext_info = msg.get('app_msg_ext_info') # article原數(shù)據(jù)
if app_msg_ext_info:
# 本次推送的首條文章
self._parse_articles(app_msg_ext_info, msg_id, post_time)
# 本次推送的其余文章
multi_app_msg_item_list = app_msg_ext_info.get('multi_app_msg_item_list')
if multi_app_msg_item_list:
for item in multi_app_msg_item_list:
msg_id = item['fileid'] # 文章id
if msg_id == 0:
msg_id = int(time.time() * 1000) # 設(shè)置唯一id,解決部分文章id=0出現(xiàn)唯一索引沖突的情況
self._parse_articles(item, msg_id, post_time)
print('next offset is %d' % offset)
else:
print('Before break , Current offset is %d' % offset)
break

def _parse_articles(self, info, msg_id, post_time):
"""解析嵌套文章數(shù)據(jù)并保存入庫"""

title = info.get('title') # 標(biāo)題
cover = info.get('cover') # 封面圖
author = info.get('author') # 作者
digest = info.get('digest') # 關(guān)鍵字
source_url = info.get('source_url') # 原文地址
content_url = info.get('content_url') # 微信地址
# ext_data = json.dumps(info, ensure_ascii=False) # 原始數(shù)據(jù)

content_url = content_url.replace('amp;', '').replace('#wechat_redirect', '').replace('http', 'https')
article_id = self.postgres.handler(self._save_article(), (msg_id, title, author, cover, digest,
source_url, content_url, post_time,
datetime.now()), fetch=True)
if article_id:
self._parse_article_detail(content_url, article_id)

def _parse_article_detail(self, content_url, article_id):
"""從文章頁提取相關(guān)參數(shù)用于獲取評論,article_id是已保存的文章id"""

try:
html = requests.get(content_url, headers=self.headers).text
except:
print('獲取評論失敗' + content_url)
else:
# group(0) is current line
str_comment = re.search(r'var comment_id = "(.*)" \|\| "(.*)" \* 1;', html)
str_msg = re.search(r"var appmsgid = '' \|\| '(.*)'\|\|", html)
str_token = re.search(r'window.appmsg_token = "(.*)";', html)

if str_comment and str_msg and str_token:
comment_id = str_comment.group(1) # 評論id(固定)
app_msg_id = str_msg.group(1) # 票據(jù)id(非固定)
appmsg_token = str_token.group(1) # 票據(jù)token(非固定)

# 缺一不可
if appmsg_token and app_msg_id and comment_id:
print('Crawl article comments: ' + content_url)
self._crawl_comments(app_msg_id, comment_id, appmsg_token, article_id)

def _crawl_comments(self, app_msg_id, comment_id, appmsg_token, article_id):
"""抓取文章的評論"""

api = 'https://mp.weixin.qq.com/mp/appmsg_comment?action=getcomment&scene=0&__biz={0}' \
'&appmsgid={1}&idx=1&comment_id={2}&offset=0&limit=100&uin=777&key=777' \
'&pass_ticket={3}&wxtoken=777&devicetype=android-26&clientversion=26060739' \
'&appmsg_token={4}&x5=1&f=json'.format(self.biz, app_msg_id, comment_id,
self.pass_ticket, appmsg_token)
resp = requests.get(api, headers=self.headers).json()
ret, status = resp['base_resp']['ret'], resp['base_resp']['errmsg']
if ret == 0 or status == 'ok':
elected_comment = resp['elected_comment']
for comment in elected_comment:
nick_name = comment.get('nick_name') # 昵稱
logo_url = comment.get('logo_url') # 頭像
comment_time = datetime.fromtimestamp(comment.get('create_time')) # 評論時間
content = comment.get('content') # 評論內(nèi)容
content_id = comment.get('content_id') # id
like_num = comment.get('like_num') # 點(diǎn)贊數(shù)
# reply_list = comment.get('reply')['reply_list'] # 回復(fù)數(shù)據(jù)

self.postgres.handler(self._save_article_comment(), (article_id, comment_id, nick_name, logo_url,
content_id, content, like_num, comment_time,
datetime.now()))

@staticmethod
def _save_article():
sql = 'insert into tb_article(msg_id,title,author,cover,digest,source_url,content_url,post_time,create_time) ' \
'values(%s,%s,%s,%s,%s,%s,%s,%s,%s) returning id'
return sql

@staticmethod
def _save_article_comment():
sql = 'insert into tb_article_comment(article_id,comment_id,nick_name,logo_url,content_id,content,like_num,' \
'comment_time,create_time) values(%s,%s,%s,%s,%s,%s,%s,%s,%s)'
return sql

if __name__ == '__main__':
biz = 'MzI2NDk5NzA0Mw==' # "36氪"
pass_ticket = 'NDndxxaZ7p6Z9PYulWpLqMbI0i3ULFeCPIHBFu1sf5pX2IhkGfyxZ6b9JieSYRUy'
app_msg_token = '971_Z0lVNQBcGsWColSubRO9H13ZjrPhjuljyxLtiQ~~'
cookie = 'wap_sid2=CO3YwOQHEogBQnN4VTNhNmxQWmc3UHI2U3kteWhUeVExZHFVMnN0QXlsbzVJRUJKc1pkdVFUU2Y5UzhSVEtOZmt1VVlYTkR4SEllQ2huejlTTThJWndMQzZfYUw2SldLVGVMQUthUjc3QWdVMUdoaGN0Nml2SU05cXR1dTN2RkhRUVd1V2Y3SFJ5d01BQUF+fjCB1pLcBTgNQJVO'
# 以上信息不同公眾號每次抓取都需要借助抓包工具做修改
wxMps = WxMps(biz, pass_ticket, app_msg_token, cookie)
wxMps.start() # 開始爬取文章及評論

文末小結(jié)

最后展示下數(shù)據(jù)庫里的數(shù)據(jù)，單線程爬的慢而且又沒這方面的數(shù)據(jù)需求，所以也只是隨便試了下手：