安装

pip install flask-mail

作用

发送邮件的扩展库

实例

from flask import Flask,render_template
from flask_script import manager
from flask_mail import Mail,Message
import time


app = Flask(__name__)
app.config['MAIL_SERVER'] = 'smtp.qq.com'
app.config['MAIL_USERNAME'] = '689668@qq.com'
# 授权码或者密码
app.config['MAIL_PASSWORD'] = xsaeccnuhttocaha
mail = Mail(app) # 实例化邮件对象
manager = Manager(app)


@app.route('/send_mail/')
def send_mail():
    msg = Message(subject='邮件激活',recipients=['1234567@qq.com'],sender=app.config['MAIL_USERNAME'])
    msg.html = render_template('emailhtml.html')
    mail.send(msg)
return '发送邮件'


if __name__ == '__main__':
    manager.run()

二、异步发送邮件

利用线程实现异步发送邮件，增加了用户的体验度，让用户先获取结果，而后在运行程序代码，利用from threading import Thread实现

实例

from flask import Flask,render_template
from flask_script import Manager
from flask_mail import Mail,Message
import os
from threading import Thread


app = Flask(__name__)
app.config['MAIL_SERVER'] = 'smtp.qq.com'
app.config['MAIL_USERNAME'] = '123456@qq.com'
app.config['MAIL_PASSWORD'] = os.environ.get('MAIL_PASSWORD')
mail = Mail(app)
manager = Manager(app)


# 异步发送
def send_mail_async(msg):
    with app.app_context():
        mail.send(msg)

@app.route('/send_mail/')
def send_mail():
    msg = Message(subject='邮件激活',recipient=['123445@qq.com'],sender=app.config['MAIL_USERNAME'])
    # 创建线程
    thr = Thread(target=send_mail_async,args=[msg])
    thr.start()  # 开启线程
    return '发送邮件'

if __name__ == '__main__':
    manager.run()

详细

settings.py

class Config:
    SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:abcd1234@127.0.0.1:3306/tpp1806'
    SQLALCHEMY_TRACK_MODIFICATIONS = False

    # flask-mail 的配置信息
    MAIL_USERNAME = 'chris_@126.com'
# 默认的发送者
    MAIL_DEFAULT_SENDER = 'chris_@126.com'
    MAIL_PASSWORD = 'abcd1234'
    MAIL_SERVER = 'smtp.126.com'

ext.py

from flask_cache import Cache
from flask_mail import Mail
from flask_migrate import Migrate
from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()
mail = Mail()
cache = Cache(config={'CACHE_TYPE': 'redis'})


def init_ext(app):
    db.init_app(app=app)
    Migrate(app=app, db=db)
    mail.init_app(app=app)
    cache.init_app(app=app)

import uuid

from flask import render_template, url_for
from flask_mail import Message
from flask_restful import Resource, reqparse, fields, marshal, marshal_with
from werkzeug.security import generate_password_hash

from App.ext import db, mail, cache
from App.models import User

parser = reqparse.RequestParser()

parser.add_argument('username', required=True, help='缺少用户名')
parser.add_argument('password', required=True, help='缺少密码')
parser.add_argument('email', required=True, help='缺少邮箱')

user_fields = {
    'user_name': fields.String,
    'e_mail': fields.String,
    '是否激活': fields.Boolean(attribute='is_activity')
}
result_fields = {
    'msg': fields.String,
    'status': fields.Integer,
    'data': fields.Nested(user_fields)
}

test_fields = {
    'result': fields.String,
    'hi': fields.String
}


class UerResource(Resource):
    @marshal_with(test_fields)
    def get(self):
        # url = url_for('accountresource', _external=True, token='dfasdfk')
        # print(url)

        return {'result': 'hello', 'sss': 'mmmm'}
    
    def post(self):
        args = parser.parse_args()
    
        username = args.get('username')
        password = args.get('password')
        email = args.get('email')
        # 根据用户名生成一个HASH值
        token = str(uuid.uuid5(uuid.NAMESPACE_DNS, username))
    
        user = User()
        user.user_name = username
        user.password = generate_password_hash(password)
        user.e_mail = email
        user.token = token
    
        # save里有异常的处理机制
        msg = user.save()
    
        # 如果有异常，直接返回
        if msg.get('error'):
            return msg
    
        # 用户写入数据库成功
        cache.set(token, user.id, timeout=60)
    
        # 发送激活邮件
        # 1. 创建一个Message对象
        message = Message()
    
        # 2. 配置Message
        # 2.1 拿到post提交时填写的邮箱地址
        message.recipients = [email]
        # 2.2 设置邮箱的主题
        message.subject = '欢迎注册1024网'
        # 2.3 设置邮箱的内容
        # http://127.0.0.1:5000/accounts/?token=
        url = url_for('accountresource', _external=True, token=token)
        message.html = render_template('ActivatePage.html', username=username,
                                       activate_url=url)
        # 2.4 设置发送者。如果在settings里设置里MAIL_DEFAULT_SENDER配置项，可以不再设置sender属性
        # message.sender = 'chris@126.com'
    
        # 3. 把Message对象发出去
        mail.send(message)
    
        # return {'msg': '注册成功', 'status': 201, 'data': user}
        return marshal({'msg': '注册成功', 'status': 201, 'data': user}, result_fields)]]

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