医院科研管理系统

from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()

class User(db.Model):

id = db.Column(db.Integer, primary_key=True)

username = db.Column(db.String(80), unique=True, nullable=False)

password = db.Column(db.String(120), nullable=False)

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from flask_login import LoginManager, UserMixin, login_user, logout_user, login_required, current_user

login_manager = LoginManager()

@login_manager.user_loader

def load_user(user_id):

return User.query.get(int(user_id))

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

app = Flask(__name__)

app.config['SECRET_KEY'] = 'your_secret_key'

app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///users.db'

db.init_app(app)

login_manager.init_app(app)

@app.route('/login', methods=['GET', 'POST'])

def login():

if request.method == 'POST':

username = request.form['username']

password = request.form['password']

user = User.query.filter_by(username=username).first()

if user and user.password == password:

login_user(user)

return redirect(url_for('dashboard'))

else:

flash('登录失败，请检查您的用户名或密码')

return '''

'''

@app.route('/logout')

@login_required

def logout():

logout_user()

return redirect(url_for('login'))

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