Java某个经纬度是否在genjson文件中问题

      <dependency>
            <groupId>org.geotools</groupId>
            <artifactId>gt-geojson</artifactId>
            <version>23.5</version>
        </dependency>

import lombok.Data;

@Data
public class LatLng {

    double lat;
    double lng;


    public LatLng(double lat,double lng){
        this.lat = lat;
        this.lng = lng;
    }
}

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;

import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.ArrayList;
import java.util.List;

public class GeojsonUtils {


    /**
     *
     * @param path genjson 位置
     * @param lat 纬度
     * @param lng 经度
     * @return
     */
    public static Boolean getGenjsonPosition(String path,Double lat,Double lng){
        try{
            String jsonString = new String(Files.readAllBytes(Paths.get(path)));
            ObjectMapper objectMapper = new ObjectMapper();
            JsonNode jsonNode = objectMapper.readTree(jsonString);
            JsonNode coordinatesNode = jsonNode.path("features").get(0).path("geometry").path("coordinates").get(0);
            List<LatLng> coordinatesList = new ArrayList<>();

            for (JsonNode coordinate : coordinatesNode) {
                double rlng = coordinate.get(0).asDouble();
                double rlat = coordinate.get(1).asDouble();
                LatLng point = new LatLng(rlat,rlng);
                coordinatesList.add(point);
            }

            LatLng targetPoint = new LatLng(lat, lng);
            boolean isInArea = false;
            int j = coordinatesList.size() - 1;

            for (int i = 0; i < coordinatesList.size(); i++) {
                LatLng point1 = coordinatesList.get(i);
                LatLng point2 = coordinatesList.get(j);

                if ((point1.getLng() < targetPoint.getLng() && point2.getLng() >= targetPoint.getLng()
                        || point2.getLng() < targetPoint.getLng() && point1.getLng() >= targetPoint.getLng())
                        && (point1.getLat() <= targetPoint.getLat() || point2.getLat() <= targetPoint.getLat())) {
                    if (point1.getLat() + (targetPoint.getLng() - point1.getLng()) / (point2.getLng() - point1.getLng())
                            * (point2.getLat() - point1.getLat()) < targetPoint.getLat()) {
                        isInArea = !isInArea;
                    }
                }

                j = i;
            }

            if (isInArea)  return true; //在区域内部
        }catch (Exception e){

        }
        return false; //不在区域内部

    }

    public static void main(String[] args) {
        String filePath = "C:\\Users\\Administrator\\Desktop\\林长制\\shanxi.geojson";
        System.out.println(getGenjsonPosition(filePath,39.34727,108.94647));
    }