mysql查询出错时释放连接的任何方法
这是获取回调的简单测试代码。我只想问一下,在出现错误的情况下,如何释放连接,因为代码会转到catch块 这是我的密码:mysql查询出错时释放连接的任何方法,mysql,node.js,Mysql,Node.js,这是获取回调的简单测试代码。我只想问一下,在出现错误的情况下,如何释放连接,因为代码会转到catch块 这是我的密码: const express = require('express'); const mysql = require('mysql2'); const app = express(); const pool = mysql.createPool({ host: 'localhost', user: 'root', database: 'mydb', connec
const express = require('express');
const mysql = require('mysql2');
const app = express();
const pool = mysql.createPool({
host: 'localhost',
user: 'root',
database: 'mydb',
connectionLimit: 10
}).promise();
pool.getConnection()
.then(() => console.log('DB connected'))
.catch((err) => console.log(err));
app.get('/api/v1', async (req, res) => {
try {
const connection = await pool.getConnection();
const [rows, fields] = await connection.query('SELECT * FROM users WHERE is_active = ?', 'Y');
connection.release();
res.status(200).json({
message: 'success',
data: rows
});
} catch(error) {
res.status(404).json({
message: 'error',
error: error
});
}
});
app.listen(3000, console.log('Listening to 3000'));
connection.close()在catch块中不起作用吗?不起作用。仅当put
const connection=wait pool.getConnection()时起作用代码>在try块之外