最近有些需求、想法，毕竟devops的风还是很强烈的啊，所以就跟风学学dev方面的东西； flask是一个很小巧很方便的webframe，听朋友说起django非常的重，于是我就在还有点python基础的能力下选择flask学学；准备用这个框架开发新的平台，首先就要有用户登录页面，用flask可以这样实现： 代码结构：
flasky
├── run.py
├── static
│ ├── av1.jpg
│ ├── av2.jpg
│ ├── av3.jpg
│ ├── bootstrap.min.css
│ ├── bootstrap.min.js
│ ├── bootstrap-responsive.min.css
│ ├── excanvas.min.js
│ ├── fullcalendar.css
│ ├── fullcalendar.min.js
│ ├── glyphicons-halflings.png
│ ├── GNU-Linux-Logo-Penguin-SVG.png
│ ├── jquery.flot.min.js
│ ├── jquery.flot.resize.min.js
│ ├── jquery.min.js
│ ├── jquery.peity.min.js
│ ├── jquery.ui.custom.js
│ ├── logo.png
│ ├── Tux.jpg
│ ├── unicorn.dashboard.js
│ ├── unicorn.grey.css
│ ├── unicorn.js
│ ├── unicorn.login.css
│ ├── unicorn.login.js
│ └── unicorn.main.css
└── templates
├── base.html
├── check.html
├── index.html
├── login.html
└── upload.html
前端就用bootstrap展示，login.html1
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40{% extends \"base.html\" %}
{% block title %} Dachen FTP {% endblock %}
</style></head>
{% block body %}
<body>
<div id="logo">
<img src="{ {url_for('static',filename='GNU-Linux-Logo-Penguin-SVG.png')}}" alt="">
</div>
<div id="loginbox">
<form id="loginform" class="form-vertical" action="" method="post">
<p>Sing in to blog.sctux.com</p>
<!--<div class="control-group"> -->
<div class="form-group">
<div class="controls">
<div class="input-prepend">
<input name="username" value="{ {request.form.username}}" placeholder="Username">
</div>
</div>
</div>
<!\-\- <div class="control-group"> -->
<div class="form-group">
<div class="controls">
<div class="input-prepend">
<input name="pass" placeholder="Password ">
</div>
</div>
</div>
<div class="form-group">
<div class="col-md-90 col-md-offset-12">
<button type="submit" class="btn btn-primary">Sign in</button>
</div>
{% if error %}
<p><font color="red">{ { error }}</font></p>
{% endif %}
</div>
</form>
{% endblock %}
</body>
run.py内容：1
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34\# coding:utf-8
from flask.ext.wtf import Form
from flask import render\_template, redirect, url\_for
app = Flask(\_\_name\_\_)
@app.route('/login',methods=\['POST','GET'\])
def login():
error=False
if request.method == 'POST':
if request.form\['username'\] != 'user1' or request.form\['pass'\] != 'user1@1qaz':
error="username or password error !"
else:
return redirect(url_for('index'))
return render_template('login.html',error=error)
@app.route('/index')
def index():
return render_template('index.html',result=result)
@app.route('/upload',methods=\['GET','POST'\])
def upload():
return render_template('upload.html')
@app.route('/check',methods=\['POST','GET'\])
def check():
return render_template('check.html')
@app.route('/logout')
def logout():
return redirect(url_for('login'))
if \_\_name\_\_=="\_\_main\_\_":
app.run(debug=True,host='xxxxxxxxx',port=4000)
启动 python run.py 访问 http://xxxxxxxxx:4000/ [](https://qcloud.coding.net/u/guomaoqiu/p/guomaoqiu/git/raw/master/uploads/2016/07/login-page-1.jpg) 登录主页的效果： [](https://qcloud.coding.net/u/guomaoqiu/p/guomaoqiu/git/raw/master/uploads/2016/07/2222.jpg)
