express框架

💡 创建服务器并启动

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

app.listen(80, () => {

  console.log('express server running at http://127.0.0.1');
})

💡 获取get和post请求

app.get('/user', (request, response) => {

    response.send({name: '25', age: 20});
})

app.post('/user', (req, res) => {

    res.send('请求成功');

})

💡 express的路由

const express = require('express');
const router = express.Router();

注册路由

app.use(router);

数据库的连接并测试

const db = mysql.createPool({
    host: 'localhost',
    user: 'root',
    password: '123456',
    database: 'hyy',
})

db.query('select 1', [2], (err, results) => {
    if (err) return console.log(err.message)
    console.log(results);
})