Question

我正在使用Mern堆栈开发Web服务器。当我尝试使用猫鼬连接到我的mongodb Atlas集群时，出现错误。奇怪的是，当我尝试使用Compass连接到群集时，也会出现该错误。我将来自Atlas控制台的所有IP地址列入了白名单。我住在哥伦比亚，选择了GCP /圣保罗作为我的地区，那可能会成为问题的一部分吗？

这是我的服务器代码

const express = require('express');
const multer = require('multer');
const path = require('path');
let mongoose = require('mongoose');
const fileModel = require('./file_model.js');

let app = express();

let upload = multer();

mongoose.connect('mongodb+srv://username:password@psylockecluster-na7vy.gcp.mongodb.net/test', {useNewUrlParser: true, useUnifiedTopology:true}).catch(()=>console.log('did not connect'));
const db = mongoose.connection;

db.once('open', () => console.log('connected to mongo'));
db.on('error', (e) => console.log(e));

let port = process.env.PORT || 8000;

app.route('/interface').get((_, res) => {
    try {
        res.sendFile(__dirname + '/interface.html');
    } catch (e) {
        res.status(404).send(e.message);
    }
})

app.post('/upload', upload.any(), (req, res) => {
    let fileModels = req.files.map((file) => (
        new fileModel({
            root:path.dirname(file.fieldname),
            fieldname:file.fieldname,
            originalname:file.originalname,
            encoding:file.encoding,
            mimetype:file.mimetype,
            buffer:file.buffer,
            size:file.size
        })
    ));
    let test = fileModels[0];
    test.save((err, test) => {
        console.log('uploaded file');
        if (err) {
            console.log(err);
        }
    });
    res.status(200).send("Files were uploaded succesfuly");
})

app.listen(port, () => console.log(`Server running on port ${port}`));

这是错误：

did not connect
Error: queryTxt ETIMEOUT cluster0-na7vy.mongodb.net
    at QueryReqWrap.onresolve [as oncomplete] (dns.js:202:19) {
  errno: 'ETIMEOUT',
  code: 'ETIMEOUT',
  syscall: 'queryTxt',
  hostname: 'cluster0-na7vy.mongodb.net'
}

用猫鼬连接到MongoDB地图集时出错

0 个答案: