如何在Node.js和Mongoose中更新对象数组中的特定对象

const mongoose = require('mongoose');

const mySchema = new mongoose.Schema({
  name: String,
  objects: [{
    key: String,
    value: String
  }]
});

const MyModel = mongoose.model('MyModel', mySchema);

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 filter = { name: 'example' }; // 根据需要修改的对象的条件进行筛选
const update = { $set: { 'objects.$[elem].value': 'newValue' } }; // 更新特定对象的value字段
const options = { arrayFilters: [{ 'elem.key': 'specificKey' }] }; // 指定筛选条件

MyModel.findOneAndUpdate(filter, update, options)
  .then((result) => {
    console.log('Object updated successfully', result);
  })
  .catch((error) => {
    console.error('Error updating object', error);
  });