nodejs/sse_demo/mysql2.js

const mysql = require('mysql2');
const pool = mysql.createPool({
    host: 'localhost',
    user: 'root',
    password: 'Skyinno251,',
    database: 'appserver',
    connectionLimit: 10 // 连接池最大连接数
});

pool.query('SELECT * FROM user', (err, rows) => {
    if (err) {
        console.error('Error querying database:', err);
        //res.status(500).send('Internal Server Error');
    } else {
        //res.json(rows);
    }
});