This article describes the method of Java programming to obtain the distance between latitude and longitude. Share it for your reference, as follows:
public class GeoUtil { /** * Return a rectangular range based on latitude and distance* * @param lng * Longitude* @param lat * Latitude* @param distance * Distance (in meters) * @return [lng1,lat1, lng 2, lat2] The lower left corner of the rectangle (lng1,lat1) and the upper right corner of the rectangle (lng2,lat2) */ public static double[] getRectangle(double lng, double lat, long distance) { float delta = 111000; if (lng != 0 & & lat != 0) { double lng1 = lng - distance / Math.abs(Math.cos(Math.toRadians(lat)) * delta); double lng2 = lng + distance / Math.abs(Math.cos(Math.toRadians) (lat)) * delta); double lat1 = lat - (distance / delta); double lat2 = lat + (distance / delta); return new double[] { lng1, lat1, lng2, lat2 }; } else { // TODO ZHCH The calculation formula when equal to 0 double lng1 = lng - distance / delta; double lng2 = lng + distance / delta; double lat1 = lat - (distance / delta); double lat2 = lat + (distance /delta); return new double[] { lng1, lat1, lng2, lat2 }; } } /** * Get the distance between two points* * @param lat1 * @param lng1 * @param lat2 * @param lng2 * @return */ public static double getDistanceOfMeter(double lat1, double lng1, double lat2, double lng2) { double radLat1 = rad(lat1); double radLat2 = rad(lat2); double a = radLat1 - ra dLat2; double b = rad(lng1) - rad(lng2 ); double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2) + Math.cos(radLat1) * Math.cos(radLat2) * Math.pow(Math .sin(b / 2), 2))); s = s * EARTH_RADIUS; s = Math.round(s * 10000) / 10; return s; } private static double rad(double d) { return d * Math. PI / 180.0; } /** * Earth Radius: 6378.137KM */ private static double EARTH_RADIUS = 6378.137;}I hope this article will be helpful to everyone's Java programming.