자바 응용 프로그램 개발 실전 테크닉 1강 - 구글 맵 연동

public class Execute {

    public static void main(String[] args) {

        Main main = new Main();

    }

}

import javax.swing.JFrame;

public class Main extends JFrame{

    public Main() {
        setTitle("Google Maps");
        setVisible(true);
        pack(); 
    }

}

import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLEncoder;

import javax.swing.ImageIcon;

public class GoodleAPI {

    public void downloadMap(String location){
        try {
            String imageURL =  "https://developers.google.com/maps/api/staticmap?center="
                                +URLEncoder.encode(location, "UTF-8") + "&zoom=11&size=612x612&scale=2";
            URL url = new URL(imageURL);
            InputStream is = url.openStream();
            OutputStream os = new FileOutputStream(location);
            byte[] b = new byte[2048];
            int length;
            while ((length = is.read(b)) != -1) {
                os.write(b,0,length);
            }
            is.close();
            os.close();
        }catch(Exception e) {
            e.printStackTrace();
        }

    }
    public ImageIcon getMap(String location) {
        return new ImageIcon((new ImageIcon(location)).getImage().getScaledInstance(612, 612, java.awt.Image.SCALE_SMOOTH));
    }
    public void fileDelete(String fileName) {
        File f = new File(fileName);
        f.delete();
    }
}

• URLEncoder.encode
  • 인코딩이 다르면 안되니깐 utf-8로 맞춰준다.

import javax.swing.JFrame;
import javax.swing.JLabel;

public class Main extends JFrame{

    private GoogleAPI googleAPI = new GoogleAPI();
    private String location = "서울";
    private JLabel googleMap;

    public Main() {
        googleAPI.downloadMap(location);
        googleMap = new JLabel(googleAPI.getMap(location));
        googleAPI.fileDelete(location);

        setTitle("Google Maps");
        setVisible(true);
        pack(); 
    }

}

• 현재 api는 다른 주소로 바꿔서 해야한다. 구글맵에서 따로 api키를 받아서 입력하는 방식으로 변했다.