Java-通过高德地图Api把地址转换为经纬度

1、高德地图开发者注册和登入地址 https://id.amap.com/?ref=http%3A%2F%2Flbs.amap.com%2Fdev%2Fkey

2、后端代码

public static String getLnglat(String address) {
     
        //"http://restapi.amap.com/v3/geocode/geo?address=上海市东方明珠&output=JSON&key=xxxxxxxxx";
        String geturl = "http://restapi.amap.com/v3/geocode/geo?key="+YourKEY+"&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());
            //判断输入的位置点是否存在
            System.out.println(sb.toString());
            if(a.getJSONArray("geocodes").size()>0)
                location=a.getJSONArray("geocodes").getJSONObject(0).get("location").toString();
            System.out.println(location);
        } catch (Exception e) {
     
            e.printStackTrace();
            System.out.println("失败!");
        }
        return location;
    }