mysql、java中根据经纬度计算距离

曾经终败给现在 2022-11-22 12:58 364阅读 0赞

### mysql ###

点1(lon1,lat1)      点2(lon2,lat2)    (经度，纬度)

SELECT
    ROUND(
            6378.138 * 2 * ASIN(
                SQRT(
                    POW(
                        SIN(
                            (
                                lat1 * PI() / 180 - lat2 * PI() / 180
                            ) / 2
                        ),
                        2
                    ) + COS(lat1 * PI() / 180) * COS(lat2 * PI() / 180) * POW(
                        SIN(
                            (
                                lon1 * PI() / 180 - lon2 * PI() / 180
                            ) / 2
                        ),
                        2
                    )
                )
            ) * 1000
        ) AS distance

### java ###

1、依赖

<dependency>
    			<groupId>org.gavaghan</groupId>
    			<artifactId>geodesy</artifactId>
    			<version>1.1.3</version>
    		</dependency>

2、工具类

package com.dy.utils;
    
    import org.gavaghan.geodesy.Ellipsoid;
    import org.gavaghan.geodesy.GeodeticCalculator;
    import org.gavaghan.geodesy.GeodeticCurve;
    import org.gavaghan.geodesy.GlobalCoordinates;
    
    /**
     * @program: xiudo-ota
     * @description: 经纬度计算工具类
     * @author: zhang yi
     * @create: 2020-10-22 14:37
     */
    public class LonLatUtil {
    
        /**
         * 创建GeodeticCalculator，调用计算方法，传入坐标系、经纬度用于计算距离
         * @param gpsFrom 当前位置
         * @param gpsTo 目标位置
         * @param ellipsoid 坐标系
         * @return
         */
        public static double getDistanceMeter(GlobalCoordinates gpsFrom, GlobalCoordinates gpsTo,
                                              Ellipsoid ellipsoid){
            GeodeticCurve geoCurve = new GeodeticCalculator().calculateGeodeticCurve(ellipsoid, gpsFrom, gpsTo);
            return geoCurve.getEllipsoidalDistance();
        }
    }

3、使用

public static void main(String[] args) {
            GlobalCoordinates source = new GlobalCoordinates(30.299766, 108.03805);
            GlobalCoordinates target = new GlobalCoordinates(29.465956, 107.169763);
    
            double meter1 = LonLatUtil.getDistanceMeter(source, target, Ellipsoid.Sphere);
            double meter2 = LonLatUtil.getDistanceMeter(source, target, Ellipsoid.WGS84);
    
            System.out.println("Sphere坐标系计算结果："+meter1 + "米");
            System.out.println("WGS84坐标系计算结果："+meter2 + "米");
            
        }

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[20201104163924616.png]: /images/20221120/0e4828edb39f423cae334af4b53e68c9.png