在項目根目錄安裝mysql
npm i mysql
實現增刪改查(注意要設計好自己的表和字段,增刪改查語法和普通sql一樣)
// 掛載Mysql
var mysql = require('mysql');
// 數據庫連接信息
var connection = mysql.createConnection({
host : '127.0.0.1',
user : 'root',
password : 'root',
database : 'demo'
});
// 連接數據庫
connection.connect();
// 增刪改查(和寫普通的mysql語句一樣)
// 增加
connection.query('INSERT INTO `nodemysql`.`users` (`id`, `username`, `password`) VALUES (NULL,"admin", "123456");', function (error, results, fields) {
if (error) throw error;
console.log('The solution is: ', results);
});
// 刪除
// connection.query(' DELETE FROM users WHERE id=1', function (error, results, fields) {
// if (error) throw error;
// console.log('The solution is: ', results);
// });
//
// 修改
// connection.query(' UPDATE users SET username = "user" WHERE id=2', function (error, results, fields) {
// if (error) throw error;
// console.log('The solution is: ', results);
// });
// 查詢
// connection.query('SELECT * FROM users;', function (error, results, fields) {
// if (error) throw error;
// console.log('The solution is: ', results);
// });
// 關閉連接
connection.end();