app.py
from flask import Flask,flash
from flask import url_for,render_template
# from flask_wtf.csrf import CSRFProtect
#导入定义的BaseLogin
from forms import BaseLogin
import config
app = Flask(__name__)
app.config.from_object(config)
# CSRFProtect(app)
#定义处理函数和路由规则，接收GET和POST请求
@app.route('/login',methods=('POST','GET'))
def baselogin():
form= BaseLogin()
#判断是否是验证提交
if form.validate_on_submit():
#跳转
flash(form.name.data+'|'+form.password.data)
return '表单数据提交成功！'
else:
#渲染
return render_template('login.html',form=form)
@app.route('/')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.run(debug=True)
config.py
#coding:utf8
import os
SECRET_KEY = os.urandom(24)
CSRF_ENABLED = True
forms.py
# -*- coding:utf-8 -*-
#引入Form基类
from flask_wtf import FlaskForm
#引入Form元素父类
from wtforms import StringField,PasswordField
#引入Form验证父类
from wtforms.validators import DataRequired,Length
#登录表单类,继承与Form类
class BaseLogin(FlaskForm):
#用户名
name=StringField('name',validators=[DataRequired(message="用户名不能为空")
,Length(6,16,message='长度位于6~16之间')],render_kw={'placeholder':'输入用户名'})
#密码
password=PasswordField('password',validators=[DataRequired(message="密码不能为空")
,Length(6,16,message='长度位于6~16之间')],render_kw={'placeholder':'输入密码'})
templates/login.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Flask_WTF</title>
<style type="text/css">
.div1 {
height:180px;
width:380px;
border:1px solid #8A8989;
margin:0 auto;
}
.input{
display: block;
width: 350px;
height: 40px;
margin: 10px auto;
}
.button
{
background: #2066C5;
color: white;
font-size: 18px;
font-weight: bold;
height: 50px;
border-radius: 4px;
}
</style>
</head>
<body>
<div class="div1"><form action="login" method = "post">
<!--启动CSRF-->
{{form.hidden_tag()}}
{{form.name(size=16,id='name',class='input' )}}
{%for e in form.name.errors%}
<span style="color: red">{{e}}</span>
{%endfor%}
{{form.password(size=16,id='password',class='input')}}
{%for e in form.password.errors%}
<span style="color: red">{{e}}</span>
{%endfor%}
<input type="submit" value="登录" class="input button">
</form></div>
</body>
</html>