python flask发送邮件

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python flask发送邮件
* SMTPAuthenticationError: (535, ‘Error: authentication failed’)
解决办法：调用163邮箱服务器来发送邮件,我们需要开启POP3/SMTP服务,这时163邮件会让我们设置客户端授权码，这个授权码替代上面代码部分的passwd即可成功发送邮件
安装flask-mail

pip3 install flask-mail

总体结构图

hello.py

import osfrom flask import Flask, render_template, session, redirect, url_forfrom flask_script import Manager, Shellfrom flask_bootstrap import Bootstrapfrom flask_moment import Momentfrom flask_wtf import Formfrom wtforms import StringField, SubmitFieldfrom wtforms.validators import Requiredfrom flask_mail import Mail, Messageapp = Flask(__name__)app.config['SECRET_KEY'] = 'hard to guess string'app.config['SQLALCHEMY_COMMIT_ON_TEARDOWN'] = Trueapp.config['MAIL_SERVER'] = 'smtp.163.com'  # 163smtp服务器app.config['MAIL_PORT'] = 25  # 端口号app.config['MAIL_USERNAME'] = "aaa@163.com"app.config['MAIL_PASSWORD'] = "abcabc"   #填写客户端授权码app.config['FLASKY_MAIL_SUBJECT_PREFIX'] = '[Flasky]'app.config['FLASKY_MAIL_SENDER'] = 'aaa@163.com'app.config['FLASKY_ADMIN'] = "aaa@163.com"manager = Manager(app)bootstrap = Bootstrap(app)moment = Moment(app)mail = Mail(app)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(Form):    name = StringField('What is your name?', validators=[Required()])    submit = SubmitField('Submit')def make_shell_context():    return dict(app=app)manager.add_command("shell", Shell(make_context=make_shell_context))@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 = form.name.data        session['known'] = True        if app.config['FLASKY_ADMIN']:            send_email([app.config['FLASKY_ADMIN'], 'abc@qq.com'], 'New User',                       'mail/new_user', user=user)        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()

404.html

{% extends "base.html" %}{% block title %}Flasky - Page Not Found{% endblock %}{% block page_content %}<div class="page-header">    <h1>Not Found</h1></div>{% endblock %}

500.html

{% extends "base.html" %}{% block title %}Flasky - Internal Server Error{% endblock %}{% block page_content %}<div class="page-header">    <h1>Internal Server Error</h1></div>{% endblock %}

index.html

{% extends "base.html" %}{% import "bootstrap/wtf.html" as wtf %}{% block title %}Flasky{% endblock %}{% block page_content %}<div class="page-header">    <h1>Hello, {% if name %}{{ name }}{% else %}Stranger{% endif %}!</h1>    {% if not known %}    <p>Pleased to meet you!</p>    {% else %}    <p>Happy to see you again!</p>    {% endif %}</div>{{ wtf.quick_form(form) }}{% endblock %}

base.html

{% extends "bootstrap/base.html" %}{% block title %}Flasky{% endblock %}{% block head %}{{ super() }}<link rel="shortcut icon" href="{{ url_for('static', filename='favicon.ico') }}" type="image/x-icon"><link rel="icon" href="{{ url_for('static', filename='favicon.ico') }}" type="image/x-icon">{% endblock %}{% block navbar %}<div class="navbar navbar-inverse" role="navigation">    <div class="container">        <div class="navbar-header">            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">                <span class="sr-only">Toggle navigation</span>                <span class="icon-bar"></span>                <span class="icon-bar"></span>                <span class="icon-bar"></span>            </button>            <a class="navbar-brand" href="/">Flasky</a>        </div>        <div class="navbar-collapse collapse">            <ul class="nav navbar-nav">                <li><a href="/">Home</a></li>            </ul>        </div>    </div></div>{% endblock %}{% block content %}<div class="container">    {% for message in get_flashed_messages() %}    <div class="alert alert-warning">        <button type="button" class="close" data-dismiss="alert">&times;</button>        {{ message }}    </div>    {% endfor %}    {% block page_content %}{% endblock %}</div>{% endblock %}{% block scripts %}{{ super() }}{{ moment.include_moment() }}{% endblock %}

异步发送电子邮件

from threading import Threaddef send_async_email(app,msg):    with app.app_context():        mail.send(msg)def send_email(to,subject,template, **kwargs):    msg = Message(app.config['FLASK_MAIL_SUBJECT_PREFIX']+subject,            sender=app.config['FLASK_MAIL_SENDER'],recipients=[to])    msg.body=render_template(template+'.txt',**kwargs)    msg.html=render_template(template+'.html',**kwargs)    thr = Thread(target=send_async_email,args=[app,msg])    thr.start()    return thr

注意：很多Flask扩展都假设已经存在激活的程序上下文和请求上下文。Flask-Mail中的send()函数使用current_app,因此必须激活程序上下文。不过，在不同线程中执行mail.send()函数时，程序上下文要使用app.app_context()人工创建。

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