如何用Python开发CMS系统的网站性能监控功能

import requests
import time
import smtplib
from email.mime.text import MIMEText

class WebsiteMonitor:
    def __init__(self, url):
        self.url = url

    def check_response_time(self):
        start_time = time.time()
        response = requests.get(self.url)
        end_time = time.time()
        response_time = end_time - start_time
        return response_time

    def send_alert(self, subject, message):
        # 发送警报通知的邮件设置，需要填写你的邮箱服务器信息和账号密码
        smtp_server = 'smtp.example.com'
        smtp_port = 587
        sender = 'sender@example.com'
        password = 'password'
        receiver = 'receiver@example.com'

        # 创建邮件内容
        msg = MIMEText(message)
        msg['Subject'] = subject
        msg['From'] = sender
        msg['To'] = receiver

        # 发送邮件
        server = smtplib.SMTP(smtp_server, smtp_port)
        server.starttls()
        server.login(sender, password)
        server.sendmail(sender, receiver, msg.as_string())
        server.quit()

    def monitor(self):
        while True:
            response_time = self.check_response_time()

            if response_time > 5:  # 响应时间超过5秒，发送警报通知
                subject = 'Website Performance Alert'
                message = 'The website {} is responding slowly ({} seconds)'.format(self.url, response_time)
                self.send_alert(subject, message)

            time.sleep(60)  # 每分钟监测一次

# 使用示例
if __name__ == '__main__':
    monitor = WebsiteMonitor('http://example.com')
    monitor.monitor()