javascript - Node.js:如何处理新 URL 解析器弃用警告？

Question

这个问题已经有答案了:

Avoid "current URL string parser is deprecated" warning by setting useNewUrlParser to true (22 个回答)

已关闭 4 年前。

当我使用 mongoose 和express 运行我的node.js 服务器时，我收到此警告:

(node:27809) DeprecationWarning: current URL string parser is deprecated, and will be removed in a future version. To use the new parser, pa ss option { useNewUrlParser: true } to MongoClient.connect.

当我将 { useNewUrlParser: true } 传递给我的连接选项时，我得到:

(node:27799) UnhandledPromiseRejectionWarning: TypeError: callback is not a function at $initialConnection.$initialConnection.then (node:27799) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async func tion without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1) (node:27799) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handl ed will terminate the Node.js process with a non-zero exit code.

这是我的代码:

//Mongoose Connection & Validation Process

mongoose.connect("mongodb://12.345.65.89:3000/db",
         {user: 'user', pass: 'p@ssword'},{ useNewUrlParser: true });

mongoose.connection.on('connected', function () {
     console.log('Mongoose connected!')
 });

mongoose.connection.on('error',function (err) {
     console.log('Mongoose default connection error');
});

我该如何解决这个问题？我认为这与我在 useNewUrlParser 之前传递用户和密码的方式有关，但我必须这样做，否则由于在密码中使用 @ ，我会收到错误:/有什么想法吗？

谢谢!

Answer 1

const db = require('./config/keys').mongoURI;
//mongoURI: 'mongodb://localhost:27017/mernApp'

mongoose
    .connect(db, { useNewUrlParser: true })
    .then(() => console.log("MongoDB connected"))
    .catch(err => console.log(err));