如何利用MongoDB图集连接MongoDB

Question

MongoDB连接错误MongoNetworkError：在第一次连接[MongoNetworkError：到Cluster0-Shard-00-00-C487Z.MongoDB.net:27017的连接5已关闭......]时连接到服务器[Cluster0-Shard-00-00-C487Z.MongoDB.net:27017]失败

这是我的代码。

const mongoose = require('mongoose');
const express = require('express');
var cors = require('cors');
const bodyParser = require('body-parser');
const logger = require('morgan');
const Data = require('./data');
const API_PORT = 3001;
const app = express();
app.use(cors());
const router = express.Router();
const dbRoute = 'mongodb+srv://<username>:<Password>@cluster0-c487z.mongodb.net/fullstack_app';
mongoose.connect(dbRoute, {useNewUrlParser: true});
let db = mongoose.connection;
db.once('open', () => console.log('connected to the database'));
db.on('error', console.log.bind(console, 'MongoDB connection error'));
router.post('/putData', (req, res) => {
    let data = new Data();
    const { id, message } = req.body;
    if ((!id && id !== 0) || !message) {
      return res.json({
        success: false,
        error: 'INVALID INPUTS',
      });
    }
    data.message = message;
    data.id = id;
    data.save((err) => {
      if (err) return res.json({ success: false, error: err });
      return res.json({ success: true });
    });
  });

  app.use('/api', router);
  app.listen(API_PORT, () => console.log(`LISTENING ON PORT ${API_PORT}`));

Answer 1

选择“连接应用程序”

选择语言和驱动程序版本（截图中的node.js驱动程序3.0+)，并复制连接字符串以在应用程序中使用：

确保您阅读并理解smallprint--您将需要用实际值替换login和password。