如何将Json数据保存到node js中的mongoose

npm install mongoose

const mongoose = require('mongoose');

mongoose.connect('mongodb://localhost/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });

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

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

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

newUser.save((err, savedUser) => {
  if (err) {
    console.error(err);
  } else {
    console.log('User saved successfully:', savedUser);
  }
});