如何使用mongoose在mongo db中使用经纬度查找附近的点

const mongoose = require('mongoose');

const locationSchema = new mongoose.Schema({
  name: String,
  location: {
    type: { type: String },
    coordinates: [Number]
  }
});

locationSchema.index({ location: '2dsphere' });

const Location = mongoose.model('Location', locationSchema);

const locationData = new Location({
  name: '某地点',
  location: {
    type: 'Point',
    coordinates: [longitude, latitude]
  }
});

locationData.save((err, savedLocation) => {
  if (err) {
    console.error(err);
  } else {
    console.log('地理位置数据保存成功：', savedLocation);
  }
});

const longitude = 123.456; // 经度
const latitude = 45.678; // 纬度
const maxDistance = 5000; // 最大距离（单位：米）

Location.find({
  location: {
    $near: {
      $geometry: {
        type: 'Point',
        coordinates: [longitude, latitude]
      },
      $maxDistance: maxDistance
    }
  }
}, (err, nearbyLocations) => {
  if (err) {
    console.error(err);
  } else {
    console.log('附近的点：', nearbyLocations);
  }
});