네이버 지도 api 사용

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
public class NaverGeoApi {

    public static void main(String[] args) {
        String clientId = "clientId "; //clientId 
        String clientSecret = "clientSecret ";  //clientSecret 
        
        try {
            String addr = URLEncoder.encode("주소입력", "UTF-8");  //주소입력
            String apiURL = "https://naveropenapi.apigw.ntruss.com/map-geocode/v2/geocode?query=" + addr; //json
            //String apiURL = "https://openapi.naver.com/v1/map/geocode.xml?query=" + addr; // xml
            URL url = new URL(apiURL);
            HttpURLConnection con = (HttpURLConnection)url.openConnection();
            con.setRequestMethod("GET");
            con.setRequestProperty("X-NCP-APIGW-API-KEY-ID", clientId);
            con.setRequestProperty("X-NCP-APIGW-API-KEY", clientSecret);
            int responseCode = con.getResponseCode();
            BufferedReader br;
            if(responseCode==200) { 
                br = new BufferedReader(new InputStreamReader(con.getInputStream()));
            } else {  
                br = new BufferedReader(new InputStreamReader(con.getErrorStream()));
            }
            String inputLine;
            StringBuffer response = new StringBuffer();
            while ((inputLine = br.readLine()) != null) {
                response.append(inputLine);
            }
            br.close();
            System.out.println(response.toString());
        } catch (Exception e) {
            System.out.println(e);
        }
    }
}