根据经纬度查询最近距离，mysql查询经纬度附近范围

public class Test{

    private static List<LocalAddress> ilist = new ArrayList<LocalAddress>();    public static void main(String[] args) {        Test test3 = new Test();        Double localDouble  = 0.0;

        //定义一个二维数组存放经纬度        Double[][] doubles = {                { 22.6036906766, 113.8793209706 }, //雍华源                { 22.5205569549, 113.9394272419 }, //西海湾花园                { 22.6494305358, 114.0411629507 }, //世纪春城4期                { 22.5255080247,114.0384880750 },  //金海湾花园                { 22.5246432654,114.0720634923 },   //金港豪庭                { 22.5963291708,113.9689558477 },   //得意名居                { 22.5509638661,113.9358124450 },   //麒麟花园A区西门                { 22.5509638661,113.9358124450 },   //麒麟花园A区北门                { 22.5254496086,114.0555439122 },   //裕康时尚名居                { 22.7789489191,114.3063672776 },   //桑泰丹华园                { 22.5240537775,114.0641924822 },   //皇庭彩园                { 22.5141408858,114.0624887496 } }; //城市3米6

        //门店的经纬度        Double[] initlocal = {22.539899298946577,113.95296375395431 };

        for (int i = 0; i < doubles.length; i++) {            System.out.println("doubles.length==============="+doubles.length);            System.out.println("(" + doubles[i][0] + "," + doubles[i][1] + ")");            Double z = test3.getDistance(doubles[i][0], doubles[i][1],initlocal[0], initlocal[1]);            System.out.println(z);            //获取最短距离后把经纬度和距离存放到对象中            LocalAddress localaddress = new LocalAddress(doubles[i][0], doubles[i][1], z);            //将对象用list保存            ilist.add(localaddress);        }

        List<LocalAddress> shotlocal =  getLocalList();        Double lat=shotlocal.get(0).getLat();        Double lon= shotlocal.get(0).getLon();        localDouble = shotlocal.get(0).getDistance();        System.err.println("最近的距离：" + localDouble + "。对应的经纬是：" +"(" + lat + "," + lon + ")");    }

    /*第一种求最近距离 ===================================================*/    /**     * 获取最短的距离     * @param lat     * @param lon     * @param initlat     * @param initlon     * @return     */    public Double GetShotLocal(Double lat, Double lon, Double initlat,Double initlon) {        Double x = (initlat - lat) * (initlat - lat);        Double y = (initlon - lon) * (initlon - lon);        Double z = Math.sqrt(x + y);        return z;    }

    /**     * 对List<LocalAddress> 进行排序     * @return     */    public static List<LocalAddress> getLocalList()  {        Collections.sort(ilist, new Comparator<LocalAddress>() {            @Override            public int compare(LocalAddress arg0, LocalAddress  arg1) {                Double double1 = arg0.getDistance();                Double double2 = arg1.getDistance();                if(double1>double2){                    return 1;                }else if (double1 == double2) {                    return 0;                }else {                    return -1;                }            }        });        return ilist;    }

/*    第二种求最近距离                         ==================================================================*/    private static final double EARTH_RADIUS = 6378.137;//地球半径,单位千米    private static double rad(double d)    {        return d * Math.PI / 180.0;    }

    /**     *     * @param lat1 第一个纬度     * @param lng1 第一个经度     * @param lat2 第二个纬度     * @param lng2 第二个经度     * @return 两个经纬度的距离     */    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 * 10000) / 10000;        return s;

    }

}

entity

public class LocalAddress {

    private Double lat;     //纬度    private Double lon;     //经度    private Double distance;    //最近距离

    public LocalAddress() {        // TODO Auto-generated constructor stub    }

    public LocalAddress(Double lat, Double lon, Double distance) {        super();        this.lat = lat;        this.lon = lon;        this.distance = distance;    }

}

<!--根据经纬度查询最近距离范围--><select id="SelectDistanceByLat" parameterType="map" resultType="map">   SELECT   *,(   6371 * acos (   cos ( radians(#{lat}) )   * cos( radians( lat ) )   * cos( radians( lng ) - radians(#{lng}) )   + sin ( radians(#{lat}) )   * sin( radians( lat ) )   )   ) AS distance   FROM machine   HAVING   3 > distance   ORDER BY distance   LIMIT 0 , 20;</select>

原文地址：https://www.cnblogs.com/tomingto/p/11102240.html