与Node js的MongoDb连接

npm install mongoose

const mongoose = require('mongoose');

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

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

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

const user = new User({
  name: 'John',
  age: 25,
  email: 'john@example.com'
});

user.save()
  .then(() => {
    console.log('User saved');
  })
  .catch((error) => {
    console.error('Failed to save user', error);
  });