python发送邮件，,　　在实际开发中，有

python发送邮件，,　　在实际开发中，有

　　在实际开发中，有很多场景都需要消息通知，消息通知的类型主要分为短信、web页面消息、邮件。python发送邮件主要使用smtplib和email模块，smtplib模块主要负责发送邮件：是一个发送邮件的动作，连接发送邮件的动作，连接服务器，登录邮箱，发送邮件（发件人、收件人，邮件内容）；email模块主要负责构建邮件：指的是邮箱页面显示的一些构造，如发件人、收件人、主题、正文、附件等。

import smtplibfrom email import encodersfrom email.mime.base import MIMEBasefrom email.mime.image import MIMEImagefrom email.mime.multipart import MIMEMultipartfrom email.mime.text import MIMETextclass mailsender(object):    def __init__(self, host, port):        self.smtp = smtplib.SMTP()        self.smtp_ssl = smtplib.SMTP_SSL()        self.smtp.connect(host, port)        self.user = None        self.pwd = None    def login(self, user, pwd):        """        登录        :param user: 邮箱用户名        :param pwd: 邮箱密码        :return:        """        self.user = user        self.smtp.login(user, pwd)    def add_attachment(self, filename):        """        添加附加        :param filename:  附件路径        :return:        """        att = MIMEBase(‘application‘, ‘octet-stream‘)        att.set_payload(open(filename, ‘rb‘).read())        att.add_header(‘Content-Disposition‘, ‘attachment‘, filename=(‘utf-8‘, ‘‘, filename))        encoders.encode_base64(att)        return att    def add_img(self, filename, img_id):        """        添加正文中图片        :param filename: 图片路径        :param img_id: 图片ID机标识符        :return:        """        msg_image = MIMEImage(open(filename, ‘rb‘).read())  # 读取图片内容        msg_image.add_header(‘Content-ID‘, img_id)  # 指定文件的Content-ID,<img>,在HTML中图片src将用到        return msg_image    def structure_email(self, email_info):        """        构建邮件        :return:        """        msg = MIMEMultipart(‘alternative‘)        if email_info.get("is_html"):            # html格式            contents = MIMEText(email_info.get("content"), ‘html‘, _charset=‘utf-8‘)        else:            contents = MIMEText(email_info.get("content"), ‘plain‘, _charset=‘utf-8‘)        msg.attach(contents)        msg[‘subject‘] = email_info.get("subject")        msg[‘from‘] = self.user        msg[‘to‘] = email_info.get("send_target")        attachments = email_info.get("attachments", [])        # 处理附件        for attachment_item in attachments:            msg.attach(self.add_attachment(attachment_item))        if email_info.get("is_html"):            # 处理html正文中的图片            image_attachments = email_info.get("image_attachments", {})            for image_id, image_filename in image_attachments.items():                msg.attach(self.add_img(image_filename, image_id))        return msg    def send(self, msg, to_addr):        """        发送邮件        :param msg: 邮件体        :param to_addr: 收件人        :return:        """        self.smtp.sendmail(self.user, to_addr, msg.as_string())        self.smtp.quit()if __name__ == ‘__main__‘:    email_host = "smtp.163.com"    email_port = "25"    user = "92066@163.com"    password = "password"    message_data = {        "creator": "00000",  # 创建人        "create_time": 1345678123456,  # 创建时间        "subject": "邮件主题",        "content": ‘<font color=red> 官网业务周平均延时图表 :<br><img src="cid:image_id_1"><br>详细内容见附件</font>‘,      # image_id_1这个是和添加图片用的id对应上        "send_target": ["123@qq.com"],        "notice_type": 1,  # 1-邮件，2-短信，3-web        "status": 1,  # 1-待发送，2-发送成功，3发送失败        "try_times": 0,  # 尝试次数        "is_deleted": 0,  # 0-正常，1-已删除        "attachments": [],  # 附件列表        "is_html": 0,  # 0-正常文本，1-HTML        "image_attachments": {"image_id_1": ""}  # 正文是否为HTML,且带图片    }    email = mailsender(email_host, email_port)    email.login(user, password)    msg = email.structure_email(message_data)    email.send(msg, message_data.get("send_target"))

python发送邮件