Flask ==> 简单用户登录

Flask ==>  简单用户登录

from flask import Flask,render_template,request,redirect,session
import functools

app=Flask(__name__,template_folder='templates',static_url_path='/xxxxxx')

app.secret_key = "sdfasdfasdf3fsdf" #加密钥


def wapper(func):
    @functools.wraps(func)
    def inner(*args,**kwargs):
        if not session.get('user_info') and request.path != "/login":
            return redirect('/login')
        return func(*args,**kwargs)
    return inner



@app.route('/login',methods=['GET','POST'])
@wapper
def login():
    if request.method == "GET":
        return render_template('login.html')
    else:
        user = request.form.get('user')
        pwd = request.form.get('pwd')
        if user =='zxc' and pwd == '123':
            session['user_info'] = user
            # print(session['user_info'])
            return redirect('/index')
        else:
            # return render_template('login.html',msg='用户名或者密码有误')
            return render_template('login.html',**{'msg':'用户名或者密码有误'})
    # return "index"  #类似于HttpResponse
    # return render_template('login.html')

@app.route('/index',methods=['GET'])
@wapper
def index():

    return  render_template('/index.html')



if __name__ == '__main__':
    app.run()
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Title</title>
</head>
<body>
<h1>欢迎登录</h1>
<form action="" method="post">
    <input type="text" name="user">
    <input type="text" name="pwd">
    <input type="submit">{{msg}}
    <img src="/xxxxxx/111.jpg" alt="">
</form>
</body>
</html>
login.html
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Title</title>
</head>
<body>
<h1>
    恭喜！已登录
</h1>
</body>
</html>
index.html

 

posted @ 2018-01-04 23:16  Aray007  阅读(982)  评论(0)    收藏  举报