从零开始学Flask框架-007

Flash消息

from flask import flash

渲染Flash消息，在基模板base.html中引入get_flashed_messages()

{% extends "bootstrap/base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}Flasky{% endblock %}
{#引入moment.js 库#}
{% block scripts %}
    {{ super() }}
    {{ moment.include_moment() }}
{% endblock %}
{#包含导航条的程序基模板#}
{% 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="/">TEST</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">
        <div class="alert alert-warning">
            <button type="button" class="close" data-dismiss="alert">&times;</button>
            {% for message in get_flashed_messages() %}
                {{ message }}
            {% endfor %}
            {% block page_content %}{% endblock %}
    </div>
{% endblock %}

flash.html

{% extends "base.html" %}

index.html

@app.route('/flash')
def flash_test():
    if True:
        flash('12313213213')
        redirect('flash.html')
    return  render_template('flash.html')

运行结果