将变量赋值给会话nodejs

// 引入必要的模块和中间件
const express = require('express');
const session = require('express-session');

// 创建Express应用程序
const app = express();

// 配置会话中间件
app.use(session({
  secret: 'your-secret-key', // 用于加密会话数据的密钥
  resave: false,
  saveUninitialized: true
}));

// 定义路由处理程序
app.get('/', (req, res) => {
  // 将变量赋值给会话
  req.session.myVariable = 'Hello, World!';
  res.send('Variable assigned to session.');
});

app.get('/retrieve', (req, res) => {
  // 从会话中获取变量的值
  const myVariable = req.session.myVariable;
  res.send(`Value of myVariable: ${myVariable}`);
});

// 启动服务器
app.listen(3000, () => {
  console.log('Server started on port 3000');
});