项目使用插件：
flask_bootstrap
flask_wtf
flask_login
flask_sqlalchemy
用户模型类：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : /8/1 14:45
# @File : Model.py
"""
数据模型
"""
from flask_login import LoginManager,login_user,UserMixin,logout_user,login_required
from Start import login_manger
from Start import db
class Users(UserMixin,db.Model):
__tablename__ = 'py_user'#对应mysql数据库表
id = db.Column(db.Integer, primary_key=True)
name = db.Column(db.String(64), unique=True, index=True)
pwd = db.Column(db.String(64), unique=True, index=True)
def __init__(self,name,pwd):
self.name=name
self.pwd=pwd
def get_id(self):
return unicode(self.id)
def __repr__(self):
return '' % self.name
def is_authenticated(self):
return True
def is_active(self):
return True
def is_anonymous(self):
return False
表单类：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : /8/1 14:46
# @File : Form.py
"""
表单类
"""
from wtforms import StringField,SubmitField,PasswordField
from wtforms.validators import Required
from flask_wtf import FlaskForm
#登录表单
class Login_Form(FlaskForm):
name=StringField('name',validators=[Required()])
pwd=PasswordField('pwd',validators=[Required()])
submit=SubmitField('Login in')
#注册表单
class Register_Form(FlaskForm):
name=StringField('name',validators=[Required()])
pwd=PasswordField('pwd',validators=[Required()])
submit=SubmitField('register')
视图类：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : /8/1 14:45
# @File : Views.py
"""
视图模型
"""
from flask import render_template,Blueprint,redirect,url_for,flash
from Start import login_manger
from Form import Login_Form,Register_Form
from Model import Users
from flask_login import LoginManager,login_user,UserMixin,logout_user,login_required
from DB import db
blog=Blueprint('blog',__name__) #蓝图
@blog.route('/')
def index():
form=Login_Form()
return render_template('login.html',form=form)
@blog.route('/index')
def l_index():
form = Login_Form()
return render_template('login.html',form=form)
@blog.route('/login',methods=['GET','POST'])
def login():
form=Login_Form()
if form.validate_on_submit():
user=Users.query.filter_by(name=form.name.data).first()
if user is not None and user.pwd==form.pwd.data:
login_user(user)
flash('登录成功')
return render_template('ok.html',name=form.name.data)
else:
flash('用户或密码错误')
return render_template('login.html',form=form)
#用户登出
@blog.route('/logout')
@login_required
def logout():
logout_user()
flash('你已退出登录')
return redirect(url_for('blog.index'))
@blog.route('/register',methods=['GET','POST'])
def register():
form=Register_Form()
if form.validate_on_submit():
user=Users(name=form.name.data,pwd=form.pwd.data)
db.session.add(user)
mit()
flash('注册成功')
return redirect(url_for('blog.index'))
return render_template('register.html',form=form)
项目启动类：
#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time : /8/1 14:50
# @File : Start.py
"""
应用启动类
"""
from flask import Flask,render_template,flash,url_for,redirect,Blueprint
from flask_bootstrap import Bootstrap
from flask_moment import Moment
from flask_wtf import FlaskForm
from flask_login import LoginManager,login_user,UserMixin,logout_user,login_required
from flask_sqlalchemy import SQLAlchemy
import sys
#解决flash的一个bug
defaultencoding = 'utf-8'
if sys.getdefaultencoding() != defaultencoding:
reload(sys)
sys.setdefaultencoding(defaultencoding)
app = Flask(__name__)
#各项插件的配置
app.config['SECRET_KEY']='kkk'
app.config['SQLALCHEMY_DATABASE_URI'] ='mysql://root:*****@localhost/mydata'#配置数据库
app.config['SQLALCHEMY_TRACK_MODIFICATIONS']=True
db = SQLAlchemy()
db.init_app(app)
bootstrap = Bootstrap(app)
moment=Moment(app)
login_manger=LoginManager()
login_manger.session_protection='strong'
login_manger.login_view='blog.login'
login_manger.init_app(app)
@login_manger.user_loader
def load_user(user_id):
from Model import Users
return Users.query.get(int(user_id))
"""
蓝图注册
"""
def init():
from Views import blog
app.register_blueprint(blueprint=blog,url_prefix='/blog')
if __name__ == '__main__':
init()
app.run(port=6626,debug=True)
本例使用了Jinja2模板进行渲染
基础类模板：
{% extends "bootstrap/base.html" %}
{% block title %}Flasky{% endblock %}
{% block head %}
{{ super() }}
{% endblock %}
{% block navbar %}
Toggle navigation
Flasky
Home
{% if current_user.is_authenticated %}
Log Out
{% else %}
Log In
{% endif %}
Register in
{% endblock %}
{% block content %}
{% for message in get_flashed_messages() %}
×
{{ message }}
{% endfor %}
{% block page_content %}{% endblock %}
{% endblock %}
{% block scripts %}
{{ super() }}
{{ moment.include_moment() }}
{% endblock %}
登录模板：
{% extends "form_base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}Flasky{% endblock %}
{% block page_content %}
Login
{{ wtf.quick_form(form) }}
{% endblock %}
注册模板：
{% extends "form_base.html" %}
{% import "bootstrap/wtf.html" as wtf %}
{% block title %}Flasky{% endblock %}
{% block page_content %}
Register
{{ wtf.quick_form(form) }}
{% endblock %}
登录后模板：
{% extends 'form_base.html' %}
Title
{% block page_content %}
Hello,{{ name }}
{% endblock %}
启动后访问：
