package cn.com.xinchantou.light.utils;
import com.alibaba.fastjson.JSON;
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;
import java.util.HashMap;
import java.util.Map;
 
public class AddressLngLatExchanger {
    /**
     * 高德地图通过地址获取经纬度
     */
    public static Map<String,Double> addressToLngAndLag(String address) {
        Map<String,Double> map=new HashMap<String, Double>();
        String geturl = "http://restapi.amap.com/v3/geocode/geo?key=xxxxxxxxxxxxx&address="+address;
        String location = "";
        try {
            URL url = new URL(geturl);    // 把字符串转换为URL请求地址
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();// 打开连接
            connection.connect();// 连接会话
            // 获取输入流
            BufferedReader br = new BufferedReader(new InputStreamReader(connection.getInputStream()));
            String line;
            StringBuilder sb = new StringBuilder();
            while ((line = br.readLine()) != null) {// 循环读取流
                sb.append(line);
            }
            br.close();// 关闭流
            connection.disconnect();// 断开连接
            JSONObject a = JSON.parseObject(sb.toString());
            JSONArray sddressArr = JSON.parseArray(a.get("geocodes").toString());
            if(sddressArr.size() == 0) return null;
            JSONObject c = JSON.parseObject(sddressArr.get(0).toString());
            location = c.get("location").toString();
        } catch (Exception e) {
            e.printStackTrace();
            System.out.println("失败!");
        }
        return stringToMap(location);
    }
 //逗号截取经度  纬度
    public static  Map<String,Double> stringToMap(String LngLat){
        Map<String,Double> map=new HashMap<String, Double>();
        String[] strArr = LngLat.split("\\,");
        map.put("lng", Double.parseDouble(strArr[0]));
        map.put("lat", Double.parseDouble(strArr[1]));
        return map;
    }
 测试1
/*    public static void main(String[] args) {
        String address="东方明珠";
        Map<String, Double> map = addressToLngAndLag(address);
        for(Map.Entry<String, Double> entry : map.entrySet()){
            String mapKey = entry.getKey();
            Double mapValue = entry.getValue();
            System.out.println(mapKey+":"+mapValue);
        }    }
        */
}

测试2

public static List<Map<String, Double>> LngLat(String address){
List<Map<String, Double>> list=new ArrayList<Map<String, Double>>();
    Map<String, Double> map =addressToLngAndLag(address);
    for(Map.Entry<String, Double> entry : map.entrySet()){
        String mapKey = entry.getKey();
        Double mapValue = entry.getValue();
        map.put(mapKey,mapValue);
        list.add(map);
    }
    return list;
}

 public static void main(String[] args) {

List<Map<String, Double>> lngLatList=LngLat(address); Double lng= lngLatList.get(0).get("lng"); Double lat= lngLatList.get(1).get("lat"); System.out.println(lng+""+lat);

}

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