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一、實現登陸微博功能

首先進入微博頁面后按F12打開開發者工具，將如圖的按鈕點擊后，在瀏覽器中手動登陸一次，在Network 標簽的XHR類型中找到Login請求標簽，在Form data下我們可以看到username(用戶名)和password(密碼)，并知道了請求方式是POST，請求的參數有很多我們直接照搬就是。

網頁截圖

Python編程實現簡單的微博自動點贊

這時，可能學過一些爬蟲的同學便會直接上手寫出如上雷同的代碼，但發現出不來結果

會報錯的代碼

import requests	
headers = {
 	 "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like 			Gecko) Chrome/76.0.3809.132 Safari/537.36"
	}
login_data = {
 	 "username": "你的用戶名",
 	 "password": "你的密碼",
	 "savestate": "1",
	 "r": "https://m.weibo.cn/?jumpfrom=weibocom",
	 "ec": "0",
	 "pagerefer": "https://m.weibo.cn/login?backURL=https%253A%252F%252Fm.weibo.cn%252F%253Fjumpfrom%253Dweibocom",
  	 "entry": "mweibo",
	 "wentry": "",
	 "loginfrom": "",
	 "client_id": "",
	 "code": "",
	 "qq": "",
 	 "mainpageflag": "1",
	 "hff": "",
	 "hfp": "",
	}
login_req = requests.post("https://passport.weibo.cn/sso/login", data=login_data, headers=headers)
print(login_req.status_code)

這是因為有些網站并不只是按照"user-agent"判斷用戶的正常訪問的。那我們還需點開Request Headers（請求頭）檢查可能還有什么字段會用來判斷用戶正常訪問

Python編程實現簡單的微博自動點贊

一般 referer（請求來源頁面）、origin（誰發起的請求）、host（主機名及端口號）字段也常被用于反爬蟲，當我們的爬蟲無法正常獲取數據時，我們可以將請求頭里的這些字段照搬進去試試。經過驗證，微博網頁是以referer 來判斷是否是用戶正常訪問。最后我們還可以把Cookie放進代碼里，這樣就不用在代碼里輸入賬號密碼了。

要注意Cookie并不是永久有效的，若發現自動登錄失敗，可以重新上網頁把新的Cookie復制下來更換

完整的代碼如下

import requests
headers = {
	  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36",
	  "referer": "https://passport.weibo.cn/signin/login? 	entry=mweibo&res=wel&wm=3349&r=https%3A%2F%2Fm.weibo.cn%2F%3Fjumpfrom%3Dweibocom",
	  "cookie": "你的cookie"
	}
login_data = {
	  "savestate": "1",
	  "r": "https://m.weibo.cn/?jumpfrom=weibocom",
	  "ec": "0",
	  "pagerefer": "https://m.weibo.cn/login?backURL=https%253A%252F%252Fm.weibo.cn%252F%253Fjumpfrom%253Dweibocom",
	  "entry": "mweibo",
	  "wentry": "",
	  "loginfrom": "",
	  "client_id": "",
	  "code": "",
	  "qq": "",
	  "mainpageflag": "1",
	  "hff": "",
	  "hfp": "",
	}
login_req = requests.post("https://passport.weibo.cn/sso/login", data=login_data, headers=headers)
print(login_req.status_code)	#輸出200則代表登錄成功

二、實現發送微博

既然都登陸微博了，我們先試試能不能順便發微博吧

同樣的，在微博編輯頁面點擊F12進入開發者工具，我們先試試發送一個微博，Network標簽會出現什么新的內容吧

網頁截圖

Python編程實現簡單的微博自動點贊

當微博界面點擊發送之后，Network標簽就會出現update的請求，點進去可以看到，請求地址是https://m.weibo.cn/api/statuses/update，請求方法是 POST。參數有兩個一個是content 也就是發送的微博內容，另一個是st，這里的st通過幾次的檢驗，猜測應該是網站的反爬蟲措施。這里獲得st的方法是通過同為Network標簽下的config請求，里面存放了st值，我們將 JSON 格式的字符串轉換為字典，然后取到 st 的值

方法

config_req = session.get("https://m.weibo.cn/api/config")
config = config_req.json()
st = config["data"]["st"]
print(st)   #每隔一段時間st值會改變

登錄和發送微博的完整代碼如

import requests
headers = {
	  "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36",
	  "referer": "https://passport.weibo.cn/signin/login?entry=mweibo&res=wel&wm=3349&r=https%3A%2F%2Fm.weibo.cn%2F%3Fjumpfrom%3Dweibocom",
	  "cookie": "你的cookie"
	}
login_data = {
	  "savestate": "1",
	  "r": "https://m.weibo.cn/?jumpfrom=weibocom",
	  "ec": "0",
	  "pagerefer": "https://m.weibo.cn/login?backURL=https%253A%252F%252Fm.weibo.cn%252F%253Fjumpfrom%253Dweibocom",
	  "entry": "mweibo",
	  "wentry": "",
	  "loginfrom": "",
	  "client_id": "",
	  "code": "",
	  "qq": "",
	  "mainpageflag": "1",
	  "hff": "",
	  "hfp": "",
	}	
# 使用 session來保留登錄狀態
session = requests.Session()
session.headers.update(headers)
login_req = session.post("https://passport.weibo.cn/sso/login", data=login_data)
# 獲取 st 請求
config_req = session.get("https://m.weibo.cn/api/config")
config = config_req.json()
st = config["data"]["st"]
compose_data = {
	  "content": input("請輸入發送的內容："),,
	  "st": st
}
compose_req = session.post("https://m.weibo.cn/api/statuses/update", data=compose_data)
print(compose_req.json())	# 輸出：{"ok": 1, "data": 省略部分內容...}

調整結構后的代碼(功能一樣)如

import requests
class WeiboSpider:
	def __init__(self):
   		self.session = requests.Session()
    	self.headers = {
      "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36",
      "referer": "https://passport.weibo.cn/signin/login?entry=mweibo&res=wel&wm=3349&r=https%3A%2F%2Fm.weibo.cn%2F%3Fjumpfrom%3Dweibocom",
      "cookie": "你的Cookie"
    }
    self.session.headers.update(self.headers)
	def login(self):
    	login_data = {
      "savestate": "1",
      "r": "https://m.weibo.cn/?jumpfrom=weibocom",
      "ec": "0",
      "pagerefer": "https://m.weibo.cn/login?backURL=https%253A%252F%252Fm.weibo.cn%252F%253Fjumpfrom%253Dweibocom",
      "entry": "mweibo",
      "wentry": "",
      "loginfrom": "",
      "client_id": "",
      "code": "",
      "qq": "",
      "mainpageflag": "1",
      "hff": "",
      "hfp": "",
	}
	self.session.post("https://passport.weibo.cn/sso/login", data=login_data)
	def get_st(self):
    	config_req = self.session.get("https://m.weibo.cn/api/config")
    	config = config_req.json()
    	st = config["data"]["st"]
    	return st
 	def compose(self, content):
    	compose_data = {
      "content": content,
      "st": self.get_st()
    }
    compose_req = self.session.post("https://m.weibo.cn/api/statuses/update", data=compose_data)
    print(compose_req.json())
 	def send(self, content):
    	self.login()
    	self.compose(content)
weibo = WeiboSpider()
weibo.send(input("請輸入發送的內容："))

三、實現微博自動點贊

完整的代碼

import requests
class WeiboSpider:
  def __init__(self):
    self.session = requests.Session()
    self.headers = {
      "user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/76.0.3809.132 Safari/537.36",
      "referer": "https://passport.weibo.cn/signin/login?entry=mweibo&res=wel&wm=3349&r=https%3A%2F%2Fm.weibo.cn%2F%3Fjumpfrom%3Dweibocom",
      "cookie": "你的cookie"
    }
    self.session.headers.update(self.headers)
  def login(self):
    login_data = {
      "savestate": "1",
      "r": "https://m.weibo.cn/?jumpfrom=weibocom",
      "ec": "0",
      "pagerefer": "https://m.weibo.cn/login?backURL=https%253A%252F%252Fm.weibo.cn%252F%253Fjumpfrom%253Dweibocom",
      "entry": "mweibo",
      "wentry": "",
      "loginfrom": "",
      "client_id": "",
      "code": "",
      "qq": "",
      "mainpageflag": "1",
      "hff": "",
      "hfp": "",
    }
    self.session.post("https://passport.weibo.cn/sso/login", data=login_data)
  def get_st(self):
    config_req = self.session.get("https://m.weibo.cn/api/config")
    config = config_req.json()
    st = config["data"]["st"]
    return st
  def compose(self, content):
    compose_data = {
      "content": content,
      "st": self.get_st()
    }
    compose_req = self.session.post("https://m.weibo.cn/api/statuses/update", data=compose_data)
    print(compose_req.json())
  def send(self, content):
    self.login()
    self.compose(content)
  # 獲取微博列表
  def get_weibo_list(self):
    params = {
      "type": "uid",
      "value": "2139359753", 
      "containerid": "1076032139359753"
    }
    weibo_list_req = self.session.get("https://m.weibo.cn/api/container/getIndex", params=params)
    weibo_list_data = weibo_list_req.json()
    weibo_list = weibo_list_data["data"]["cards"]
    return weibo_list
 # 點贊微博
  def vote_up(self, id):
    vote_up_data = {
      "id": id,  # 要點贊的微博 id
      "attitude": "heart",
      "st": self.get_st()
    }
    vote_up_req = self.session.post("https://m.weibo.cn/api/attitudes/create", data=vote_up_data)
    json = vote_up_req.json()
    print(json["msg"])
  # 批量點贊微博
  def vote_up_all(self):
    self.login()
    weibo_list = self.get_weibo_list()
    for i in weibo_list:
      # card_type 為 9 是正常微博
      if i["card_type"] == 9:
        self.vote_up(i["mblog"]["id"])
weibo = WeiboSpider()
weibo.vote_up_all()

謝謝大家，Python的分享就到此為止，以后如果有好玩的Python程序，我還會繼續向大家分享的，希望大家以后多多支持服務器之家！

原文鏈接：https://blog.csdn.net/huisoul/article/details/116008126