如何通过树莓派进行公网IP变动后自动邮件通知python

如何通过树莓派进行公网IP变动后自动邮件通知python，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

1. 获取公网IP

class Getmyip:        def getip(self):                try:                        myip = self.visit("http://www.ip138.com/ip2city.asp")                except Exception, e1:                         logging.warning(str(e1))                                                try:                                myip = self.visit("http://www.whereismyip.com")                        except Exception, e2:                                 logging.warning(str(e2))                                myip = "So sorry!!!"                return myip                        def visit(self,url):                opener = urllib2.urlopen(url)#               if url == opener.geturl():                mystr = opener.read()                return re.search('\d+\.\d+\.\d+\.\d+',mystr).group(0)

2. 发邮件

def send_mail(to_list,sub,content):          mail_host="smtp.163.com"  #设置服务器        mail_user="aaa"    #用户名        mail_pass="aaa"   #口令         mail_postfix="163.com"  #发件箱的后缀                me="hello"+"<"+mail_user+"@"+mail_postfix + ">"        msg = MIMEText(content,_subtype='plain',_charset='utf8')          msg['Subject'] = sub          msg['From'] = me          msg['To'] = ";".join(to_list)          try:                  server = smtplib.SMTP()                  server.connect(mail_host)                  server.login(mail_user,mail_pass)                  server.sendmail(me, to_list, msg.as_string())                  server.close()                  return True          except Exception, e:                  print str(e)                  return False

3. 每半小时检查一次

if __name__ == '__main__':                  strLastIP = ''        logging.info('Starting message')        while True:                logging.info('time.sleep begin')                time.sleep(1600)                logging.info('time.sleep end')                getmyip = Getmyip()                                logging.info('Getmyip')                localip = getmyip.getip()                logging.info('getmyip.getip =' + localip)                                if localip == 'So sorry!!!' or localip == '':                        continue                                                 if  localip == strLastIP :                        logging.info("The same ip : " + localip)                else:                                                logging.info( "localip ok : " + localip)                                          if send_mail(mailto_list,"IP " + localip, localip):                                  strLastIP = localip                                logging.info( "send ok")                          else:                                  logging.warning( "send err" )

4. 开机启动

编辑 /etc/init.d/rc.local

python /usr/local/work/sendmyip.py &

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