Java计算两个经纬度间的距离最简单的方式

谁践踏了优雅 2023-06-21 10:27 149阅读 0赞

转载自：[https://article.itxueyuan.com/pM97O][https_article.itxueyuan.com_pM97O]

## 叙述 ##

开发中经常会遇到计算两个点（经纬度）之间的距离或者计算最近门店的场景，下面简单实现一下如何计算两个经纬度之间相隔的距离。

## 解决方案 ##

**加入第三方开发包**

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

**代码**

import org.gavaghan.geodesy.Ellipsoid;
    import org.gavaghan.geodesy.GeodeticCalculator;
    import org.gavaghan.geodesy.GeodeticCurve;
    import org.gavaghan.geodesy.GlobalCoordinates;
    
    public class CaculateDistanceTest
    {
        public static void main(String[] args)
        {
            GlobalCoordinates source = new GlobalCoordinates(29.490295, 106.486654);
            GlobalCoordinates target = new GlobalCoordinates(29.615467, 106.581515);
    
            double meter1 = getDistanceMeter(source, target, Ellipsoid.Sphere);
            double meter2 = 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");
        }
    
        public static double getDistanceMeter(GlobalCoordinates gpsFrom, GlobalCoordinates gpsTo, Ellipsoid ellipsoid)
        {
            //创建GeodeticCalculator，调用计算方法，传入坐标系、经纬度用于计算距离
            GeodeticCurve geoCurve = new GeodeticCalculator().calculateGeodeticCurve(ellipsoid, gpsFrom, gpsTo);
    
            return geoCurve.getEllipsoidalDistance();
        }
    }

**输出结果**

![format_png][]

对比百度地图，计算结果和Sphere坐标系计算结果一致，表明计算结果正确，WGS84坐标系的计算结果存在几十米的误差。不同的坐标系精度不同，计算结果不一样。大家根据实际情况自己选择。

![format_png 1][]

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