JAVA : 상대경로로 절대경로 얻기

  public ConfRead(String fileName) {

    this.fileName = fileName;

    try {
      java.net.URL url = ConfRead.class.getClassLoader().getResource(fileName);

      fis = url.openStream();
      isr = new InputStreamReader(fis);
      br = new BufferedReader(isr);
      }
      catch (FileNotFoundException ex) {
        System.err.println(fileName + " 파일 읽기 오류 : \n" + ex);
      }
      catch (IOException ex1) {
      }

  }

package kinotl.server.game;
import kinotl.client.game.store.*;
import java.io.*;
public class MapLoader {
static final MapData[] getMapList() {
File map_loader = new File(MapLoader.class.getResource("MapLoader.class").getPath()),
data_directory = new File(map_loader.getParent() + "\data");

System.out.println("map_loader : " + map_loader.getPath());
System.out.println("data_directory : " +data_directory.getPath());

if( data_directory.isDirectory() ) {
System.out.println("data is a directory.");
}

String[] file_list = data_directory.list();

for(String file_name : file_list ) {
System.out.println(file_name);
}

return null;
}

public static void main(String[] args) {
MapLoader.getMapList();
}
}