package com.example.listdemo.utils;

import com.alibaba.fastjson.JSONObject;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;

/**
 * 地址轉(zhuǎn)經(jīng)緯度（使用高德地圖獲取地址信息的經(jīng)緯度）
 */
public class AddressLocationUtil {
    /**
     * Key
     */
    private static String KEY="<高德key>";

    public  static String GD_URL="https://restapi.amap.com/v3/geocode/geo?address=%s&key=%s";

    /**
     * 成功標(biāo)識(shí)
     */
    private static String SUCCESS_FLAG="1";

    /**
     * 根據(jù)地址獲取對應(yīng)的經(jīng)緯度信息
     * @param address
     * @return
     */
    public static String getLonAndLatByAddress(String address){
        String location="";
        GD_URL = String.format(GD_URL, address, KEY);
        //高德接口返回的是JSON格式的字符串
        String queryResult = getResponse(GD_URL);
        JSONObject obj = JSONObject.parseObject(queryResult);
        if(String.valueOf(obj.get("status")).equals(SUCCESS_FLAG)){
            JSONObject jobJSON = JSONObject.parseObject(obj.get("geocodes").toString().substring(1, obj.get("geocodes").toString().length() - 1));
            location = String.valueOf(jobJSON.get("location"));
        }else{
            throw new RuntimeException("地址轉(zhuǎn)換經(jīng)緯度失敗，錯(cuò)誤碼：" + obj.get("infocode"));
        }
        return location;
    }
    /**
     * 發(fā)送請求
     *
     * @param serverUrl 請求地址
     */
    private static String getResponse(String serverUrl) {
        // 用JAVA發(fā)起http請求，并返回json格式的結(jié)果
        StringBuffer result = new StringBuffer();
        try {
            URL url = new URL(serverUrl);
            URLConnection conn = url.openConnection();
            BufferedReader in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result.append(line);
            }
            in.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return result.toString();
    }

    public static void main(String[] args) {
        String address="北京市朝陽區(qū)阜通東大街6號";
        String location=getLonAndLatByAddress(address);
        System.out.println("經(jīng)緯度：" + location);
    }
}

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

public class AMapAPI {
    public static void main([string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)[] args) {
        try {
            [string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083) url = "https://restapi.amap.com/v3/geocode/regeo?key=YOUR_KEY&location=經(jīng)度,緯度&extensions=all";
            // YOUR_KEY 需要替換為高德地圖開發(fā)者平臺(tái)申請的 Web 服務(wù) API 的 KEY；
            // 經(jīng)度和緯度需要替換為實(shí)際的值。

            URL obj = new URL(url);
            HttpURLConnection con = (HttpURLConnection) obj.openConnection();

            BufferedReader in = new BufferedReader(new InputStreamReader(con.getInputStream()));
            [string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083) inputLine;
            [string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)Buffer response = new [string](https://geek.csdn.net/edu/8802d631b97a4a6af1f4d0bbf8527465?dp_token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpZCI6NDQ0MDg2MiwiZXhwIjoxNzA3MzcxOTM4LCJpYXQiOjE3MDY3NjcxMzgsInVzZXJuYW1lIjoid2VpeGluXzY4NjQ1NjQ1In0.RrTYEnMNYPC7AQdoij4SBb0kKEgHoyvF-bZOG2eGQvc&spm=1055.2569.3001.10083)Buffer();
            while ((inputLine = in.readLine()) != null) {
                response.append(inputLine);
            }
            in.close();

            // 解析 JSON 數(shù)據(jù)，獲取海拔高度信息。
            String result = response.toString();
            int indexStart = result.indexOf("\"elevations\":[") + "\"elevations\":[".length();
            int indexEnd = result.indexOf("]", indexStart);
            String elevations = result.substring(indexStart, indexEnd);
            System.out.println("海拔高度（單位：米）：" + elevations);

        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}