面试题：Node.js Express中如何获取路由参数和查询字符串

Question

在Node.js的Express框架下，给定一个路由 '/user/:id?name=John'，请编写代码获取路由参数id以及查询字符串中的name值，并在控制台打印出来。

Answer 1

const express = require('express');
const app = express();

app.get('/user/:id?name=John', (req, res) => {
    const id = req.params.id;
    const name = req.query.name;
    console.log(`id: ${id}, name: ${name}`);
    res.send('Data printed in console');
});

const port = 3000;
app.listen(port, () => {
    console.log(`Server running on port ${port}`);
});