摘要：弄了好久終于，踩了很多坑，感覺自己好菜，提供我的參考在外面設置，如，注意沒有引號和空格郵箱設置賬號獲取授權碼，在外部傳遞安全如，注意沒有引號和空格發送者郵箱接收者郵箱，，注意沒有引號參考的一個作者的文章插件系列，還有廖雪峰的教程

弄了好久終于OK，踩了很多坑，感覺自己好菜，提供我的參考

# -*- coding: utf-8 -*-
import os
from flask import Flask, render_template, session, redirect, url_for
from flask_script import Manager, Shell
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_wtf import FlaskForm
from wtforms import StringField, SubmitField
from wtforms.validators import Required
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate, MigrateCommand
from flask_mail import Mail, Message

basedir = os.path.abspath(os.path.dirname(__file__))

app = Flask(__name__)
app.config["SECRET_KEY"] = "hard to guess string"
app.config["SQLALCHEMY_DATABASE_URI"] =
    "sqlite:///" + os.path.join(basedir, "data.sqlite")
app.config["SQLALCHEMY_COMMIT_ON_TEARDOWN"] = True
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False

app.config["MAIL_SERVER"] = "smtp.qq.com"
app.config["MAIL_PORT"] = 25
app.config["MAIL_USE_TLS"] = True
# 在外面設置，如：set MAIL_USERNAME=123456@qq.com ，注意沒有引號和空格！
app.config["MAIL_USERNAME"] = os.environ.get("MAIL_USERNAME")
# 123456@qq.com郵箱-->設置-->賬號,獲取授權碼，在外部傳遞安全,如：set MAIL_PASSWORD=xfnftzjycypzjica，注意沒有引號和空格
app.config["MAIL_PASSWORD"] = os.environ.get("MAIL_PASSWORD")
app.config["FLASKY_MAIL_SUBJECT_PREFIX"] = "[Flasky]"
# 發送者郵箱
app.config["FLASKY_MAIL_SENDER"] = "123456@qq.com"
# 接收者郵箱，set FLASKY_ADMIN = 987654@qq.com，注意沒有引號
app.config["FLASKY_ADMIN"] = os.environ.get("FLASKY_ADMIN")


manager = Manager(app)
bootstrap = Bootstrap(app)
moment = Moment(app)
db = SQLAlchemy(app)
migrate = Migrate(app, db)
mail = Mail(app)


class Role(db.Model):
    __tablename__ = "roles"
    id = db.Column(db.Integer, primary_key=True)
    name = db.Column(db.String(64), unique=True)
    users = db.relationship("User", backref="role", lazy="dynamic")

    def __repr__(self):
        return "" % self.name


class User(db.Model):
    __tablename__ = "users"
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), unique=True, index=True)
    role_id = db.Column(db.Integer, db.ForeignKey("roles.id"))

    def __repr__(self):
        return "" % self.username


def send_email(to, subject, template, **kwargs):
    msg = Message(app.config["FLASKY_MAIL_SUBJECT_PREFIX"] + " " + subject,
                  sender=app.config["FLASKY_MAIL_SENDER"], recipients=[to])
    msg.body = render_template(template + ".txt", **kwargs)
    msg.html = render_template(template + ".html", **kwargs)
    mail.send(msg)


class NameForm(FlaskForm):
    name = StringField("What is your name?", validators=[Required()])
    submit = SubmitField("Submit")


def make_shell_context():
    return dict(app=app, db=db, User=User, Role=Role)
manager.add_command("shell", Shell(make_context=make_shell_context))
manager.add_command("db", MigrateCommand)


@app.errorhandler(404)
def page_not_found(e):
    return render_template("404.html"), 404


@app.errorhandler(500)
def internal_server_error(e):
    return render_template("500.html"), 500


@app.route("/", methods=["GET", "POST"])
def index():
    form = NameForm()
    if form.validate_on_submit():
        user = User.query.filter_by(username=form.name.data).first()
        if user is None:
            user = User(username=form.name.data)
            db.session.add(user)
            session["known"] = False
            if app.config["FLASKY_ADMIN"]:
                send_email(app.config["FLASKY_ADMIN"], "New User",
                           "mail/new_user", user=user)
        else:
            session["known"] = True
        session["name"] = form.name.data
        return redirect(url_for("index"))
    return render_template("index.html", form=form, name=session.get("name"),
                           known=session.get("known", False))


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

參考的一個作者：funhacks的文章Flask 插件系列 - Flask-Mail，還有廖雪峰的python教程