最近在做个人网站，但是由于服务器资源不足，偶尔会出现系统崩溃的现象，所以想写一个程序来实时监控系统状态。当系统资源占用过高时发送邮件提醒。
psutil（进程和系统实用程序）是一个跨平台的库，用于检索 Python中有关正在运行的进程和系统利用率（CPU，内存，磁盘，网络，传感器）的信息。它主要用于系统监视，概要分析和限制进程资源以及管理正在运行的进程。
1、安装psutil
pip3 install psutil # python2用户直接使用pip install psutil
2、创建get_system_info.py文件，获取系统状态
1 import psutil as p 2 3 4 def memory(): # 获取内存信息 5 info = p.virtual_memory() 6 return info[2] 7 8 9 def disk(): # 获取磁盘使用情况 10 info = p.disk_usage('/') 11 return info[-1], info[-2] 12 13 14 def cpu(): # 获取CPU使用率 15 info = p.cpu_percent(1) 16 return info
# 在此只使用了博主所需的相关功能，详细说明见 https://pypi.org/project/psutil/
3、创建邮件发送send_Email.py文件
1 import smtplib 2 from email.header import Header 3 from email.mime.text import MIMEText 4 from email.utils import formataddr 5 6 7 class send_Email(): 8 def __init__(self, mail_host, mail_port, mail_user, mail_pass, sender): 9 self.mail_host = mail_host 10 self.mail_port = mail_port 11 self.mail_user = mail_user 12 self.mail_pass = mail_pass 13 self.sender = sender 14 15 def make_mail(self, title, code, receiver): # 生成邮件 16 mail_msg = """ 17 <h1>%s</h1> 18 <p>%s</p> 19 """ % (title, code) 20 self.message = MIMEText(mail_msg, "html", "utf-8") 21 self.message['From'] = formataddr(["XX", self.sender]) 22 self.message['To'] = formataddr(["User", receiver]) 23 subject = title 24 self.message['Subject'] = Header(subject, "utf-8") 25 26 def send(self, receiver, title, code): # 发送邮件 27 status = 0 28 self.make_mail(title, code, receiver) 29 try: 30 self.smtpObj = smtplib.SMTP_SSL(self.mail_host, self.mail_port) 31 # print(1) 32 self.smtpObj.login(self.mail_user, self.mail_pass) 33 # print(2) 34 self.smtpObj.sendmail(self.sender, [receiver], self.message.as_string()) 35 self.smtpObj.quit() 36 status = 1 37 except smtplib.SMTPException as e: 38 print("Error！ 无法发送邮件！！！" + e) 39 return status
4、整合代码
from send_Email import send_Email import get_system_info as gsi email = send_Email("smtp.163.com", 465, "*******@***.com", "**********", "********@***.com") # 初始化 memory = gsi.memory() disk, capacity = gsi.disk() info = str(memory)+" "+str(disk)+" "+str(round(capacity/1024/1024/1024, 2)) email.send(code=info, title="系统状态异常", receiver="*******@***.***") status_d = 0 status_m = 0 while True: # 实时检测系统状态，会占用一定的系统资源 memory = gsi.memory() disk, capacity = gsi.disk() if memory >= 80 and status_m == 0: status_m = 1 data = "当前内存占用率为"+str(memory)+"%，建议清理或扩充内存！" email.send(code=data, title="系统状态异常", receiver="*******@***.***") elif memory < 80: status_m = 0 if disk >= 80 and status_d == 0: status_d = 1 data = "当前硬盘已使用"+str(disk)+"%，剩余"+str(round(capacity/1024/1024/1024, 2))+"GB，请及时扩充！" email.send(receiver="*******@***.***", title="系统状态异常", code=data) elif disk < 80: status_d = 0 if memory >= 90 and status_m == 1: status_m = 2 data = "当前内存占用率为"+str(memory)+"%，建议清理或扩充内存！" email.send(code=data, title="系统状态异常", receiver="*******@***.***") elif memory < 90: status_m = 1 if disk >= 90 and status_d == 1: status_d = 2 data = "当前硬盘已使用"+str(disk)+"%，剩余"+str(round(capacity/1024/1024/1024, 2))+"GB，请及时扩充！" email.send(receiver="*******@***.***", title="系统状态异常", code=data) elif disk < 90: status_d = 1
程序仍有不足之处，请大佬多多指教。
