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Flask+简单的登录案例

app.py

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

app = Flask(__name__)

app.secret_key = '\xc9ixnRb\xe40\xd4\xa5\x7f\x03\xd0y6\x01\x1f\x96\xeao+\x8a\x9f\xe4'

@app.route('/', methods=['GET', 'POST'])
def login():
    if request.method == 'GET':
        return render_template('login.html')
    user = request.form.get('user')
    pwd = request.form.get('pwd')
    print(pwd)
    if user == 'kevin' and pwd == '123':
        session['user_info'] = user
        return redirect('/index')
    else:
        return render_template('login.html', msg='用户名或密码错误')

@app.route('/index', methods=['GET'])
def index():
    user_info = session.get('user_info')
    if not user_info:
        return redirect('/login')
    return "欢迎登录"


if __name__ == '__main__':
    app.run()

login.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>LOGIN</title>
</head>
<body>
    <form method="post">
        <input type="text" name="user">
        <input type="password" name="pwd">
        <input type="submit" name="submit">{{ msg }}
    </form>
</body>
</html>

运行结果：

 

 

 

posted @ 2021-12-01 16:12  江雪独钓翁  阅读(228)  评论(0)  编辑  收藏  举报