August 2018
Intermediate to advanced
230 pages
6h 42m
Chinese
Content preview from Flask Web开发：基于Python的Web应用开发实战（第2版）
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第 6 章
电子邮件
很多类型的应用都需要在特定事件发生时通知用户，而常用的通信方法是电子邮件。本章
介绍如何在
Flask
应用中发送电子邮件。
使用
Flask-Mail
提供电子邮件支持
虽然
Python
标准库中的 smtplib 包可用于在
Flask
应用中发送电子邮件，但包装了 smtplib
的
Flask-Mail
扩展能更好地与
Flask
集成。
Flask-Mail
使用
pip
安装：
(venv) $
pip install flask-mail
Flask-Mail
连接到简单邮件传输协议（
SMTP
，
simple mail transfer protocol
）服务器，把邮
件交给这个服务器发送。如果不进行配置，则
Flask-Mail
连接
localhost
上的
25
端口，无
须验证身份即可发送电子邮件。表
6-1
列出了可用来设置
SMTP
服务器的配置。
表6-1：Flask-Mail SMTP服务器的配置
配置 默认值 说 明
MAIL_SERVER
localhost
电子邮件服务器的主机名或
IP
地址
MAIL_PORT
25
电子邮件服务器的端口
MAIL_USE_TLS False
启用传输层安全（
TLS
，
transport layer security
）协议
MAIL_USE_SSL False
启用安全套接层（
SSL
，
secure sockets layer
）协议
MAIL_USERNAME None
邮件账户的用户名
MAIL_PASSWORD None
邮件账户的密码
在开发过程中，连接到外部
SMTP
服务器可能更方便。举个例子 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.