之前有很多同學給我發訊息，諮詢相關問題，我都沒能及時回覆解答。

主要原因是工作比較忙，部落格沒有每天登入檢視訊息。等到開啟訊息，看一些同學的訊息，無奈都已經過去了多天。

所以這裡寫了個小指令碼，每天爬取部落格訊息通知，如果有新訊息，就傳送到個人郵箱提醒。

程式碼如下：

#Version: python3
#Author: 程鬆
#-*- coding: utf-8 -*-

import urllib
import http.cookiejar
from bs4 import BeautifulSoup
from email.header import Header
from email.mime.text import
 
 MIMEText
from email.utils import parseaddr, formataddr
import smtplib

#爬取csnd部落格訊息資訊
def run_spider():
    cookie = http.cookiejar.CookieJar()
    handler = urllib.request.HTTPCookieProcessor(cookie)
    opener = urllib.request.build_opener(handler)
    loginurl = "https://passport.csdn.net/account/login?from=http://my.csdn.net/my/mycsdn"
 


    #登陸前準備：獲取lt和exection
    response = opener.open(loginurl)
    soup = BeautifulSoup(response.read(), "lxml")
    for input in  soup.form.find_all("input"):
        if input.get("name") == "lt":
            lt = input.get("value")
        if input.get("name") == "execution":
            execution = input.get("value"
 
)
    #post資訊
    values = {
            "username":"*******@qq.com", #部落格帳號
            "password":"******", #部落格密碼
            "lt":lt,
            "execution":execution,
            "_eventId":"submit"
        }
    postdata = urllib.parse.urlencode(values).encode(encoding='UTF8')

    headers = {
    'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8',
    'Accept-Language': 'zh-CN,zh;q=0.9',
    'Connection': 'keep-alive',
    'Content-Type': 'application/x-www-form-urlencoded',
    'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.84 Safari/537.36'
    }

    request = urllib.request.Request(loginurl, postdata, headers)
    result=opener.open(request)

    # #登陸後跳轉到部落格訊息頁面
    url = "http://msg.csdn.net/"
    result_response = opener.open(url)
    result_soup = BeautifulSoup(result_response.read(), "html.parser")
    result_unread_count=result_soup.find_all('b')
    result_unread_count_text = result_unread_count[0].text
    return result_unread_count_text

# 傳送爬蟲內容到郵件
def send_email(result_unread_count_text):
    def _format_addr(s):
        name, addr = parseaddr(s)
        return formataddr((Header(name, 'utf-8').encode(), addr))

    from_addr = '*******@sina.com' #傳送郵箱帳號
    password = '******' #傳送郵箱密碼
    to_addr = '[email protected]' #接受郵箱帳號（pd:這是本人郵箱，請不要隨意發垃圾資訊）
    smtp_server = 'smtp.sina.com'

    msg = MIMEText('部落格有'+'result_unread_count_text'+'條未讀訊息', 'plain', 'utf-8') #內容
    msg['From'] = _format_addr('程鬆 <%s>' % from_addr) #發件人
    msg['To'] = _format_addr('程鬆 <%s>' % to_addr) #收件人
    msg['Subject'] = Header('部落格有新訊息啦……', 'utf-8').encode() #主題

    server = smtplib.SMTP(smtp_server, 25)
    server.set_debuglevel(1)
    server.login(from_addr, password)
    server.sendmail(from_addr, [to_addr], msg.as_string())
    server.quit()
    print('已經成功將：" %s "傳送到%s,請查收'%(str(result_unread_count_text),to_addr))

if __name__ == '__main__':
    result_unread_count_text=run_spider()
    if result_unread_count_text!='':
        send_email(result_unread_count_text)
    else:
        print("部落格沒有新訊息！")