public class LocationUtils {
private static double EARTH_RADIUS = 6378.137;
private static double rad(double d) {
return d * Math.PI / 180.0;
}
/**
* 通过经纬度获取距离(单位:米)
*
* @param lat1
* @param lng1
* @param lat2
* @param lng2
* @return 距离
*/
public static double getDistance(double lat1, double lng1, double lat2,
double lng2) {
double radLat1 = rad(lat1);
double radLat2 = rad(lat2);
double a = radLat1 - radLat2;
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 * 10000d) / 10000d;
s = s * 1000;
return s;
}
public static void main(String[] args) {
double distance = getDistance(34.2675560000, 108.9534750000,
34.2464320000, 108.9534750000);
System.out.println("距离" + distance / 1000 + "公里");
}
}
原文地址:https://blog.51cto.com/7218743/2373999
时间: 2024-10-10 17:20:14