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python中Flask框架下session的使用

news 2026/5/11 22:04:11

配置session的secret_key 和有效期PERMANENT_SESSION_LIFETIME

from flask import Flask, request,session, redirect
from .views.account import ac# 拦截器
def auth():if request.path == '/login' or request.path == '/register':return # 放行静态资源if request.path.startswith('/static'):return # 从session中获取用户信息user = session.get('user')if user:return return redirect('/login')def create_app():app = Flask(__name__)# 设置session的SECRET_KEYapp.config['SECRET_KEY'] = 'secret-key-goes-here'# 设置session的有效期app.config['PERMANENT_SESSION_LIFETIME'] = 60 * 60 * 24 * 7  # 60秒 * 60分 * 24小时 * 7天  app.register_blueprint(ac)# 挂载拦截器app.before_request(auth)return app

一般在登录接口中添加session

from flask import Flask, jsonify, session, request,Blueprint,render_template,redirect
from app.config import dbac = Blueprint('account', __name__)@ac.route('/login', methods=['GET','POST'])
def login():if request.method == 'POST':mobile,password = request.form.get('mobile'),request.form.get('password')if not mobile or not password: return render_template('login.html', error="请填写账号和密码")sql = "select * from users"user_dict = db.fetch_one(sql)if not user_dict or user_dict['password'] != password:return render_template('login.html', error="账号或密码错误")# 设置session， 可以设置多个 session['mobile']   session['user_id']等session['user'] = {'mobile':mobile, 'id':user_dict['id']}return redirect('/index')return render_template('login.html')

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