from abc import ABCMeta

from abc import abstractmethod

class BaseMessage(metaclass=ABCMeta):

    @abstractmethod

    def send(self,subject,body,to,name):

        pass

class BaseMessage(object):

    def send(self, subject, body, to, name):

        raise NotImplementedError('未实现send方法')

import smtplib

from email.mime.text import MIMEText

from email.utils import formataddr

from .base import BaseMessage

class Email(BaseMessage):

    def __init__(self):

        self.email = "寄件人的邮箱地址"

        self.user = "寄件人姓名"

        self.pwd = '邮箱密码或SMTP授权码'

    def send(self,subject,body,to,name):

        '''

        :param subject: 主题

        :param body: 内容

        :param to:接受者

        :param name:接受者姓名

        :return:

        '''

        msg = MIMEText(body, 'plain', 'utf-8')  # 发送内容

        msg['From'] = formataddr([self.user,self.email])  # 发件人

        msg['To'] = formataddr([name, to])  # 收件人

        msg['Subject'] = subject # 主题

        server = smtplib.SMTP("smtp.126.com", 25) # SMTP服务

        server.login(self.email, self.pwd) # 邮箱用户名和密码

        server.sendmail(self.email, [to, ], msg.as_string()) # 发送者和接收者

        server.quit()

# ################## 自定义消息提醒的配置 ###################

MESSAGE_CLASSES = [

    'utils.message.email.Email',

    'utils.message.msg.Msg',

    'utils.message.wx.WeChat',

    'utils.message.dingding.DingDing',

]

import importlib

from django.conf import settings

def send_message(to,name,subject,body):

    """

    短信、邮件、微信

    :param to: 接受者

    :param name: 接受者姓名

    :param subject: 主题

    :param body: 内容

    :return:

    """

    for cls_path in settings.MESSAGE_CLASSES:

        # cls_path是字符串

        module_path,class_name = cls_path.rsplit('.',maxsplit=1)　　# 得到模块名的地址和模块里的一个类名（都是字符串）

        m = importlib.import_module(module_path)　　# 导入模块

        obj = getattr(m,class_name)()·# 通过反射，得到字符串class_name对应的类，并实例化

        obj.send(subject,body,to,name,)　　# 执行对应的send方法