测开之路六十七：监控平台之附加功能准备

实现效果，选择时间段和ip，展示所选时间段下该ip的资源使用情况

MongoDB里面增加一个获取表名的方法，后面用被监控的机器的ip做表名

def get_all_collections(self, database):
    """ 获取所有表名，database：数据库名"""
    _database = self.connect.get_database(database)
    return _database.collection_names()

common里面增加发邮件的功能，用于监控触发预设值后发邮件报警

def smtp_service(sender, password, receiver, message):
    """ 定义发送邮件，sender:发件人，receiver:收件人，message:要发送的信息 """
    server = 'smtp.qq.com'
    try:
        smtp = smtplib.SMTP()
        smtp.connect(server)
        smtp.login(sender, password)
        smtp.sendmail(sender, receiver, message.as_string())
        print("发送邮件给{0}成功！！！".format(receiver))
    except smtplib.SMTPException as error:
        print(error)
        print("发送邮件给{0}失败！！！".format(receiver))
    finally:
        smtp.quit()


def send_email(receiver, template):
    """ receiver: 接收者、template: 触发报警时的发送内容模板 """
    sender = '907728701@qq.com'
    password = "xxxxxxx"  # smtp密码
    title = '测试平台报警邮件！'
    message = MIMEText(template, 'html', 'utf-8')
    message['From'] = sender
    message['To'] = receiver
    message['Subject'] = Header(title, 'utf-8')
    smtp_service(sender, password, receiver, message)

准备好一个选时间的控件，这里使用bootstrap的