PG npm包的异常处理不起作用

Question

我安装了"pg": "^8.0.2"并使用数据库凭据创建了database.js文件。但无论出现什么错误，它都不会进入catch block中显示错误。相反，它总是记录connected to the database。有人能指出我做错了什么吗。非常感谢。

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，然后转到下一个语句。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'));