一、邮件发送 flask-mail说明
是一个邮件发送的扩展库，使用非常方便
二、安装
pip install flask-mail
三、配置
一定要写在创建Mail对象之前，否则将不起作用
代码语言：javascript复制<span class="hljs-comment"># 导入类库</span>
<span class="hljs-keyword">from</span> flask_mail <span class="hljs-keyword">import</span> Mail, Message
<span class="hljs-comment"># 邮箱服务器</span>
app.config[<span class="hljs-string">'MAIL_SERVER'</span>] = os.environ.get(<span class="hljs-string">'MAIL_SERVER'</span>, <span class="hljs-string">'smtp.163.com'</span>)
<span class="hljs-comment"># 用户名</span>
app.config[<span class="hljs-string">'MAIL_USERNAME'</span>] = os.environ.get(<span class="hljs-string">'MAIL_USERNAME'</span>, <span class="hljs-string">'15611833906@163.com'</span>)
<span class="hljs-comment"># 密码，密码有时是授权码</span>
app.config[<span class="hljs-string">'MAIL_PASSWORD'</span>] = os.environ.get(<span class="hljs-string">'MAIL_PASSWORD'</span>, <span class="hljs-string">'***'</span>)
<span class="hljs-comment"># 创建对象</span>
mail = Mail(app)
四、发送邮件
代码语言：javascript复制<span class="hljs-meta">@app.route('/')</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">index</span><span class="hljs-params">()</span>:</span>
<span class="hljs-comment"># 创建邮件对象</span>
msg = Message(subject=<span class="hljs-string">'账户激活'</span>, recipients=[<span class="hljs-string">'793390457@qq.com'</span>],
sender=app.config[<span class="hljs-string">'MAIL_USERNAME'</span>])
<span class="hljs-comment"># 浏览器打开邮件显示内容</span>
msg.html = <span class="hljs-string">'<h1>你好，Mr Lucky，激活请点击右边链接</h1>'</span>
<span class="hljs-comment"># 终端接受邮件显示内容</span>
msg.body = <span class="hljs-string">'你好，Mr Lucky，激活请点击右边链接'</span>
<span class="hljs-comment"># 发送邮件</span>
mail.send(message=msg)
<span class="hljs-keyword">return</span> <span class="hljs-string">'邮件已发送'</span>
五、封装发送邮件函数
代码语言：javascript复制<span class="hljs-comment"># 封装函数，发送邮件</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">send_mail</span><span class="hljs-params">(to, subject, template, **kwarg)</span>:</span>
<span class="hljs-comment"># 创建邮件对象</span>
msg = Message(subject=subject, recipients=[to],
sender=app.config[<span class="hljs-string">'MAIL_USERNAME'</span>])
<span class="hljs-comment"># 浏览器打开邮件显示内容</span>
msg.html = render_template(template <span class="hljs-string">'.html'</span>, **kwargs)
<span class="hljs-comment"># 终端接受邮件显示内容</span>
msg.body = render_template(template <span class="hljs-string">'.txt'</span>, **kwargs)
<span class="hljs-comment"># 发送邮件</span>
mail.send(message=msg)
调用邮件发送函数：
代码语言：javascript复制<span class="hljs-meta">@app.route('/')</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">index</span><span class="hljs-params">()</span>:</span>
send_mail(<span class="hljs-string">'793390457@qq.com'</span>, <span class="hljs-string">'找回密码'</span>, <span class="hljs-string">'activate'</span>,
username=<span class="hljs-string">'lucky'</span>)
<span class="hljs-keyword">return</span> <span class="hljs-string">'邮件已发送'</span>
六、异步发送邮件
代码语言：javascript复制<span class="hljs-comment"># 异步发送邮件</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">async_send_mail</span><span class="hljs-params">(app, msg)</span>:</span>
<span class="hljs-comment"># 发送邮件需要程序上下文，新的线程没有上下文，需要手动创建 </span>
<span class="hljs-keyword">with</span> app.app_context():
<span class="hljs-comment"># 发送邮件</span>
mail.send(message=msg)
<span class="hljs-comment"># 封装函数，发送邮件</span>
<span class="hljs-function"><span class="hljs-keyword">def</span> <span class="hljs-title">send_mail</span><span class="hljs-params">(to, subject, template, **kwargs)</span>:</span>
<span class="hljs-comment"># 根据current_app获取当前的实例</span>
app = current_app._get_current_object()
<span class="hljs-comment"># 创建邮件对象</span>
msg = Message(subject=subject, recipients=[to], sender=app.config[<span class="hljs-string">'MAIL_USERNAME'</span>])
<span class="hljs-comment"># 浏览器打开邮件显示内容</span>
msg.html = render_template(template <span class="hljs-string">'.html'</span>, **kwargs)
<span class="hljs-comment"># 终端接受邮件显示内容</span>
msg.body = render_template(template <span class="hljs-string">'.txt'</span>, **kwargs)
<span class="hljs-comment"># 创建线程</span>
thr = Thread(target=async_send_mail, args=[app, msg])
<span class="hljs-comment"># 启动线程</span>
thr.start()
<span class="hljs-keyword">return</span> thr
七、扩展
环境变量：好处是可以避免隐私的信息公布于众
windows配置
代码语言：javascript复制设置：set NAME=xiaoming
获取：set NAMElinux配置
代码语言：javascript复制导出：export NAME=lucky
获取：echo $NAME代码获取
代码语言：javascript复制<span class="hljs-keyword">import</span> os
app.config[<span class="hljs-string">'SECRET_KEY'</span>] = os.environ.get(<span class="hljs-string">'SECRET_KEY'</span>) <span class="hljs-keyword">or</span> <span class="hljs-string">'123456'</span>
os.environ.get(<span class="hljs-string">'NAME'</span>, <span class="hljs-string">'default'</span>)
