网站管理登录

from flask import Flask, request, redirect, url_for, render_template_string

app = Flask(__name__)

users = {
    'admin': 'password123',
    'user': 'secret'
}

@app.route('/login', methods=['GET', 'POST'])
def login():
    if request.method == 'POST':
        username = request.form['username']
        password = request.form['password']
        if username in users and users[username] == password:
            return redirect(url_for('dashboard'))
        else:
            return render_template_string('''
                <form method="POST">
                    Username: <input type="text" name="username"><br>
                    Password: <input type="password" name="password"><br>
                    <input type="submit" value="Login">
                </form>
                <p style="color:red;">Invalid credentials</p>
            ''')
    return render_template_string('''
        <form method="POST">
            Username: <input type="text" name="username"><br>
            Password: <input type="password" name="password"><br>
            <input type="submit" value="Login">
        </form>
    ''')

@app.route('/dashboard')
def dashboard():
    return 'Welcome to the dashboard!'

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