如何使用Spring Data将原始的GeoJson MultiPolygon存储到MongoDB中

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-data-mongodb</artifactId>
</dependency>

import org.springframework.data.annotation.Id;
import org.springframework.data.mongodb.core.geo.GeoJsonMultiPolygon;
import org.springframework.data.mongodb.core.mapping.Document;

@Document(collection = "geopolygon")
public class GeoPolygonEntity {

    @Id
    private String id;

    private GeoJsonMultiPolygon multiPolygon;

    // 省略构造函数、getter和setter方法
}

import org.springframework.data.mongodb.repository.MongoRepository;

public interface GeoPolygonRepository extends MongoRepository<GeoPolygonEntity, String> {

}

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service
public class GeoPolygonService {

    private final GeoPolygonRepository geoPolygonRepository;

    @Autowired
    public GeoPolygonService(GeoPolygonRepository geoPolygonRepository) {
        this.geoPolygonRepository = geoPolygonRepository;
    }

    public void saveGeoPolygon(GeoPolygonEntity geoPolygonEntity) {
        geoPolygonRepository.save(geoPolygonEntity);
    }
}