js 无法访问已关闭的资源集

const mysql = require('mysql');
const pool = mysql.createPool({
  host: 'localhost',
  user: 'user',
  password: 'password',
  database: 'database_name'
});

pool.getConnection((err, connection) => {
  if (err) throw err;
  connection.query('SELECT * FROM table', (error, results, fields) => {
    connection.release(); // 释放连接回连接池
    if (error) throw error;
    console.log(results);
  });
});

const fs = require('fs');
const stream = fs.createReadStream('path_to_file');

stream.on('data', (chunk) => {
  console.log(chunk);
});

stream.on('end', () => {
  console.log('File read complete');
});

stream.on('error', (err) => {
  console.error('Error reading file', err);
});

let resource;
try {
  resource = acquireResource();
  // 使用资源的代码
} catch (error) {
  console.error('Error:', error);
} finally {
  if (resource) {
    resource.close();
  }
}

async function useResource() {
  let resource;
  try {
    resource = await acquireResourceAsync();
    // 使用资源的代码
  } catch (error) {
    console.error('Error:', error);
  } finally {
    if (resource) {
      await resource.closeAsync();
    }
  }
}