flask web开发中，第六章，邮件总是发不出去。

Question

我的代码如下，希望能够帮我解答一下，谢谢

#-*- coding: UTF-8 -*-
import os
from flask import Flask, render_template, session, redirect, url_for, flash
from flask_sqlalchemy import SQLAlchemy
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from datetime import datetime
#加入一个datetime变量
from flask_wtf import Form
from wtforms import StringField, SubmitField
from wtforms.validators import Required
#调用表单模块
from flask_mail import Mail
#配置并使用邮箱
from flask_mail import Message
#集成电子邮件功能

app = Flask(__name__)

mail = Mail(app)
app.config['MAIL_SERVER'] = 'smtp.163.com'
app.config['MAIL_PORT'] = 25
app.config['MAIL_USE_TLS'] = True
app.config['MAIL_USERNAME'] = os.environ.get('MAIL_USERNAME')
app.config['MAIL_PASSWORD'] = os.environ.get('MAIL_PASSWORD')

app.config['FLASKY_MAIL_SUBJECT_PREFIX'] = '[Flasky]'
app.config['FLASKY_MAIL_SENDER'] = 'Flasky Admin <[e-mail]>'

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)

basedir = os.path.abspath(os.path.dirname(__file__))
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(basedir, 'data.sqlite')
app.config['SQLALCHEMY_COMMIT_ON_TEARDOWN'] = True
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = True
db = SQLAlchemy(app)
app.config['SECRET_KEY'] = 'hard to guess string'
bootstrap = Bootstrap(app)
moment = Moment(app)

class NameForm(Form):
    name = StringField(u'在下方告诉我你的名字吧。', validators=[Required()])
    submit = SubmitField(u'提交')

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 '<Role %r>' % 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 '<User %r>' % self.username

@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
        else:
            session['known'] = True
        session['name'] = form.name.data
        form.name.data = ''
        return redirect(url_for('index'))
    return render_template('index.html',
        form = form, name = session.get('name'),
        known = session.get('known', False))

@app.route('/user/<name>')
def user(name):
    return render_template('user.html',name=name)

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

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

Answer 1

163邮箱默认使用的是SSL协议吧，你把前面app.config里的MAIL_USE_SSL改成True，MAIL_USE_TLS无需设置，还有端口改成465即可，如果不行把错误信息贴上来吧。

Answer 2

1. 注意一下排版吧，我已经帮你调整了。

2. 提问的时候最好能把console的信息也贴出来，不管是否报错，没有输出内容也要说明一下。

因为没有提出任何有价值的调试信息，我目前只能问一下，你的邮箱账号和密码是怎么设置的，是否确定无误。