Mongodb 查找带有 $near 的查询并且坐标不起作用

Mongodb 查询中的 $near 运算符无效的解决方法

javascript
db.places.find({
  location: {
    $near: {
      $geometry: {
        type: "Point",
        coordinates: [longitude, latitude]
      },
      $maxDistance: distanceInMeters
    }
  }
});

javascript
db.places.createIndex({ location: "2dsphere" });

javascript
db.places.insert([
  { name: "Place A", location: { type: "Point", coordinates: [10, 20] } },
  { name: "Place B", location: { type: "Point", coordinates: [30, 40] } },
  { name: "Place C", location: { type: "Point", coordinates: [50, 60] } }
]);
db.places.createIndex({ location: "2dsphere" });
var longitude = 35;
var latitude = 45;
var distanceInMeters = 50000;
db.places.find({
  location: {
    $near: {
      $geometry: {
        type: "Point",
        coordinates: [longitude, latitude]
      },
      $maxDistance: distanceInMeters
    }
  }
});