异常处理不适用于 PG npm 包

Question

我安装了"pg": "^8.0.2" 并使用数据库凭据创建了database.js 文件。但无论出现什么问题，它都不会进入catch block 以显示错误。相反，它总是记录connected to the database。谁能指出我做错了什么。谢谢！

Database.js

const Pool = require('pg').Pool;

  const pool = new Pool({
    user: 'roothjk',
    host: 'localhost',
    database: 'sf',
    password: 'admin',
    port: 5432
  });
  try {
    pool.connect()
    console.log('connected to the db');

  } catch (e) {
    console.log('Error connecting to db');

  }

Answer 1

connect 返回一个Promise，然后您转到下一条语句。相反，您应该使用then 和cath 方法：

pool.connect()
    .then(c => console.log('connected to the db'))
    .catch(e => console.log('Error connecting to db'));