用 Python 的 Requests 写一个简单的网页更新检测脚本_检测网页公告更新的脚本-优快云博客

本文介绍了一个使用Python编写的简易脚本，该脚本能够定时检查指定网页的内容是否发生变化，并在检测到变更时通过SMTP发送邮件通知。适用于监控简单网页的更新。

这是一个简易的 Python 脚本，每隔一段时间获取页面，如果页面代码有变化，通过 SMTP 发信提醒你。仅适用于简单的页面。

import time
import requests
from email import encoders
from email.header import Header
from email.mime.text import MIMEText
from email.utils import parseaddr, formataddr

import smtplib
        
def _format_addr(s):
    name, addr = parseaddr(s)
    return formataddr((Header(name, 'utf-8').encode(), addr))

def sendmail(msg):
    from_addr = '###'
    password = '###'
    to_addr = '###'
    smtp_server = '###'
    msg['From'] = _format_addr('python <%s>' % from_addr)
    msg['To'] = _format_addr('ning <%s>' % to_addr)
    msg['Subject'] = Header('页面有更新！', 'utf-8').encode()
    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()

timesleep=1
maxtime=1
url="###"
headers={'Accept-Language':'zh-Hans-CN, zh-Hans; q=0.5','User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362'}
a=requests.get(url,headers=headers)
time.sleep(timesleep)
count=0
while(count<maxtime):
    b=requests.get(url,headers=headers)
    print("Got it")
    if(a.text!=b.text):
        a=b
        msg = MIMEText(b.text, 'html', 'utf-8')
        print("Sending mail...")
        sendmail(msg)
        count=count+1
    time.sleep(timesleep)