SY_project/server/db.js

const { Pool } = require('pg');

const pool = new Pool({
  host: process.env.DB_HOST || '121.37.183.152',
  port: parseInt(process.env.DB_PORT || '5432'),
  database: process.env.DB_NAME || 'lp-card-test',
  user: process.env.DB_USER || 'postgres',
  password: process.env.DB_PASSWORD || '123456',
  max: 20,
  idleTimeoutMillis: 30000,
  connectionTimeoutMillis: 5000,
});

pool.on('error', (err) => console.error('数据库连接池异常:', err.message));

function getPool() {
  return pool;
}

module.exports = { getPool, pool };