如何用express和mongoose连接局域网内的MongoDB

npm install express mongoose

const express = require('express');
const mongoose = require('mongoose');
const app = express();

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true })
  .then(() => {
    console.log('Connected to MongoDB');
  })
  .catch((error) => {
    console.error('Error connecting to MongoDB', error);
  });

const userSchema = new mongoose.Schema({
  name: String,
  age: Number,
  email: String
});

const User = mongoose.model('User', userSchema);

app.post('/users', (req, res) => {
  const user = new User({
    name: req.body.name,
    age: req.body.age,
    email: req.body.email
  });

  user.save()
    .then(() => {
      res.send('User created successfully');
    })
    .catch((error) => {
      res.status(500).send('Error creating user');
    });
});