node.js - $geoNear 仅在我给出 maxDistance = 100 * 1000 时给出结果；

Question

我想要附近的律师名单，我使用了 MongoDB 聚合，但只有当我通过 maxDistance 大于 100 公里时它才会给出结果。如果我想设置 maxDistance = 10 * 1000; 那么它没有给出任何结果，但数据库中有可用的数据。

这是模型：

const mongoose = require('mongoose')
const Schema = mongoose.Schema;

const lawyerSchema = new mongoose.Schema({
    name: {
        type: String,
        required: true
    },
    email: {
        type: String,
        required: true
    },
    password: {
        type: String,
        required: true
    },
    location: {
        type: { type: String, default: 'Point' },
        coordinates: { type: [Number], default: [0, 0] }
    }
})

lawyerSchema.index({ "location": "2dsphere" });

const Lawyer = mongoose.model('Lawyer', lawyerSchema)
module.exports = Lawyer

这是路线：

//route for find nearby lawyer
router.get("/findLawyer", (req, res) => {
  const long = parseInt(req.query.long);
  const lat = parseInt(req.query.lat);

  Lawyer.aggregate(
    [
      {
        $geoNear: {
          near: {
            type: "Point",
            coordinates: [long, lat],
          },
          distanceField: "dist",
          minDistance: 10 * 1000,
          maxDistance: 10 * 1000,
          distanceMultiplier: 6371,
          spherical: true,
          key: "location",
        },
      },
    ],
    (err, results) => {
      if (err) {
        res.status(400).json({ error: err });
      } else {
        res.status(200).json({ result: results });
      }
    }
  );
});

这是数据库内的记录：

这是我的邮递员：

如果我犯了任何错误，请纠正我。谢谢

标签： node.jsmongodblocationgeonear