(1)包含经纬度的点对象
package com.ict.dto;
/**
public class Point {
public double lon;
public double lat;
public Point(double lon, double lat) {
this.lon = lon;
this.lat = lat;
}
public double getLon() {
return lon;
}
public void setLon(double lon) {
this.lon = lon;
}
public double getLat() {
return lat;
}
public void setLat(double lat) {
this.lat = lat;
}
}
(2)核心计算方法，返回两个点之间的距离(单位：米)
private int R=6371000;//地球半径
public double getDistance(Point p1,Point cirp2){
double rad=Math.PI/180;
double lat1=p1.getLat()*rad;
double lat2=cirp2.getLat()*rad;
double a=Math.sin(lat1)*Math.sin(lat2)+Math.cos(lat1)*Math.cos(lat2)*Math.cos((cirp2.getLon()-p1.getLon())*rad);
double distance=R*Math.acos((Math.min(a,1)));
return distance;
}