MongoDB连接失败：首次连接报错及URI格式问题求助

核心报错信息 #

MongoError: failed to connect to server [cluster0.mndwygw.mongodb.net:27017] on first connect [Error: getaddrinfo ENOTFOUND cluster0.mndwygw.mongodb.net
    at GetAddrInfoReqWrap.Onlookupall [as oncomplete] (node:dns:118:26) {
  name: 'MongoError'
}]: did not connect

使用的index.js代码 #

import express from "express";
import bodyParser from "body-parser";
import mongoose from "mongoose";
import cors from "cors";
import dotenv from "dotenv";
import helmet from "helmet"
import morgan from "morgan"

// CONFIGURATIONS
dotenv.config()
const app = express();
app.use(express.json());
app.use(helmet());
app.use(helmet.crossOriginResourcePolicy({policy: "cross-origin"}));
app.use(morgan("common"));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({extended:false}));
app.use(cors());


// MONGOOSE SETUP

const PORT = process.env.PORT || 9000;
mongoose.Promise = global.Promise;

mongoose.connect(process.env.MONGO_URL, {
    // useNewUrlParser: true,
    // useUnifiedTopology: true,
    useMongoClient: true,
})
.then(async () => {
    app.listen(PORT, ()=> console.log(`Server Port: ${PORT}`));
})
.catch((error) => console.log(`${error}: did not connect`));

.env配置（已确认URL正确） #

MONGO_URL ="mongodb+srv://dummyUser:<password>@cluster0.mndwygw.mongodb.net/?retryWrites=true&w=majority"

注：为实际密码占位符

已尝试的排查手段 #

• 修改集群网络访问权限，添加不同IP地址
• 清除笔记本DNS缓存
• 确认网络连接稳定
• 检查当前网络无防火墙或限制

异常情况与预期结果 #

• 预期结果：控制台打印代码中设置的端口号，但未实现
• 额外异常：MongoDB提供的连接URL以mongodb+srv://开头，但连接时控制台报错：

throw new Error('Invalid mongodb uri "' + str + '". Must begin with "mongodb://"');

现寻求解决该连接问题的方法。

内容的提问来源于stack exchange，提问作者JulianSW