WGS84到Google地图位置和返回的Java代码

import java.util.Scanner;

public class WGS84ToGoogleMaps {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入WGS84坐标系的经度：");
        double longitude = scanner.nextDouble();
        System.out.print("请输入WGS84坐标系的纬度：");
        double latitude = scanner.nextDouble();

        double[] googleMapsLocation = wgs84ToGoogleMaps(longitude, latitude);
        System.out.printf("Google地图位置的经度为：%.6f\n", googleMapsLocation[0]);
        System.out.printf("Google地图位置的纬度为：%.6f\n", googleMapsLocation[1]);
    }

    public static double[] wgs84ToGoogleMaps(double longitude, double latitude) {
        double[] googleMapsLocation = new double[2];
        double[] wgs84Location = new double[] {longitude, latitude};

        double[] xy = wgs84ToMercator(wgs84Location);
        double[] mercatorLocation = new double[] {xy[0], xy[1]};

        double[] googleMapsLocation = mercatorToGoogleMaps(mercatorLocation);
        return googleMapsLocation;
    }

    public static double[] wgs84ToMercator(double[] wgs84Location) {
        double[] mercatorLocation = new double[2];
        double longitude = wgs84Location[0];
        double latitude = wgs84Location[1];

        double x = longitude * 20037508.34 / 180;
        double y = Math.log(Math.tan((90 + latitude) * Math.PI / 360)) / (Math.PI / 180);
        y = y * 20037508.34 / 180;

        mercatorLocation[0] = x;
        mercatorLocation[1] = y;
        return mercatorLocation;
    }

    public static double[] mercatorToGoogleMaps(double[] mercatorLocation) {
        double[] googleMapsLocation = new double[2];
        double x = mercatorLocation[0];
        double y = mercatorLocation[1];

        double longitude = x / 20037508.34 * 180;
        double latitude = y / 20037508.34 * 180;
        latitude = 180 / Math.PI * (2 * Math.atan(Math.exp(latitude * Math.PI / 180)) - Math.PI / 2);

        googleMapsLocation[0] = longitude;
        googleMapsLocation[1] = latitude;
        return googleMapsLocation;
    }
}