代码如下：

 String startLongitude = entity.getLONGITUDE(); // 起点（当前位置）经度
                String startLatitude = entity.getLATITUDE();   // 起点纬度
                String endLongitude = entity.getLO();   // 终点经度
                String endLatitude = entity.getLA();     // 终点纬度

                String start = startLongitude + "," + startLatitude; //进行格式拼接（当前位置/起点）
                String end = endLongitude + "," + endLatitude;  //进行格式拼接（目的地当前位置/终点）
                String distance = DistinctUtil.getDistance(start, end); //将值给方法并调用，获取距离

 

 建一个工具类来进行调用：

package com.qmq.utils;

import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class DistinctUtil {
    private static final String API_KEY = "你的高德key";
    private static final String BASE_URL = "https://restapi.amap.com/v3/direction/driving";


    public static String getDistance(String origin, String destination) throws Exception {
//        String origin = "106.6240283203125,29.656462944878474";
//        String destination = "107.51576,26.305805";
        System.out.println("接搜的经纬度"+origin+"目的地"+destination);
        String url = BASE_URL + "?key=" + API_KEY +
                "&origin=" + origin +
                "&destination=" + destination +
                "&output=json";

        HttpURLConnection connection = (HttpURLConnection) new URL(url).openConnection();
        connection.setRequestMethod("GET");
        connection.connect();

        BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
        StringBuilder response = new StringBuilder();
        String line;
        while ((line = reader.readLine()) != null) {
            response.append(line);
        }
        reader.close();
        connection.disconnect();

        // 使用Fastjson解析JSON字符串
        JSONObject jsonResponse = JSONObject.parseObject(response.toString());

        // 获取路径信息并提取距离
        JSONObject routes = jsonResponse.getJSONObject("route");
        JSONArray path = routes.getJSONArray("paths");
        JSONObject jsonObject = path.getJSONObject(0);
        String distance = jsonObject.get("distance").toString();
        double number = Double.parseDouble(distance) / 1000;
        System.out.println("距离：" + number + "公里");
        return Double.toString(number);
    }

}