java 如何根据经纬度查询出一千米内的资源数据

import java.util.ArrayList;
import java.util.List;

public class ResourceLocator {
    public static void main(String[] args) {
        // 给定经纬度
        double latitude = 39.909736;  
        double longitude = 116.397478;

        // 资源数据集合
        List<Resource> resources = new ArrayList<>();
        resources.add(new Resource(39.913753, 116.403663, "Resource 1"));
        resources.add(new Resource(39.911234, 116.390768, "Resource 2"));
        resources.add(new Resource(39.908765, 116.392345, "Resource 3"));
        resources.add(new Resource(39.906543, 116.409876, "Resource 4"));

        // 查询一千米内的资源数据
        List<Resource> nearbyResources = new ArrayList<>();

        for (Resource resource : resources) {
            double distance = calculateDistance(latitude, longitude, resource.getLatitude(), resource.getLongitude());
            if (distance <= 1000) {
                nearbyResources.add(resource);
            }
        }

        // 输出结果
        for (Resource nearbyResource : nearbyResources) {
            System.out.println(nearbyResource.getName());
        }
    }

    // 计算两个坐标点之间的距离（haversine公式）
    public static double calculateDistance(double lat1, double lon1, double lat2, double lon2) {
        double earthRadius = 6371; // 地球半径（单位：千米）

        double dLat = Math.toRadians(lat2 - lat1);
        double dLon = Math.toRadians(lon2 - lon1);

        double a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
                   Math.cos(Math.toRadians(lat1)) * Math.cos(Math.toRadians(lat2)) *
                   Math.sin(dLon / 2) * Math.sin(dLon / 2);
        double c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));

        double distance = earthRadius * c;
        return distance;
    }
}

class Resource {
    private double latitude;
    private double longitude;
    private String name;

    public Resource(double latitude, double longitude, String name) {
        this.latitude = latitude;
        this.longitude = longitude;
        this.name = name;
    }

    public double getLatitude() {
        return latitude;
    }

    public double getLongitude() {
        return longitude;
    }

    public String getName() {
        return name;
    }
}