魔域掉钱版赚ms如何在Windows上安装MySQL数据库?Windows MySQL安装指南:新手
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// 1. 安装MySQL驱动 // npm install mysql2 // 2. 连接示例代码 const mysql = require('mysql2'); // 创建连接 const connection = mysql.createConnection({ host: 'localhost', port: 3306, user: 'root', password: 'your_password', database: 'test_db', charset: 'utf8mb4' }); // 连接数据库 connection.connect((err) => { if (err) { console.error('连接失败: ' + err.stack); return; } console.log('连接成功,魔域掉钱版赚ms连接ID: ' + connection.threadId); }); // 执行查询 connection.query('SELECT * FROM test_table', (error, results, fields) => { if (error) { console.error('查询失败: ' + error.message); return; } results.forEach(row => { console.log(`ID: ${row.id}, Name: ${row.name}, Email: ${row.email}`); }); }); // 关闭连接 connection.end(); // 3. 使用连接池(推荐用于生产环境) const pool = mysql.createPool({ connectionLimit: 10, host: 'localhost', user: 'root', password: 'your_password', database: 'test_db', acquireTimeout: 60000, timeout: 60000, reconnect: true }); // 使用连接池执行查询 pool.query('SELECT * FROM test_table', (error, results) => { if (error) throw error; console.log(results); });2025-11-07 23:49 点击量:5