LirePage.java

package ParcoursDeGrapheSansMemoireUneGeneration;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.logging.Level;
import java.util.logging.Logger;
 
/**
 * Charger une page HTML
 * http://www.fobec.com/java/908/ouvrir-une-url-charger-son-contenu-format-texte.html
 */
 
public class LirePage {
/**
 * Open a url and read text data, for example html file
 * @param _url url
 * @return String file content
 */
    public static String getTextFile(String _url)  {
        BufferedReader reader = null;
        try {
            URL url = new URL(_url);
            URLConnection urlConnection = url.openConnection();
            reader = new BufferedReader(new InputStreamReader(urlConnection.getInputStream()));
            StringBuilder sb = new StringBuilder();
            String line = null;
            while ((line = reader.readLine()) != null) {
                sb.append(line);
                sb.append("\n");
            }
            return sb.toString();
        } catch (IOException ex) {
            Logger.getLogger(LirePage.class.getName()).log(Level.SEVERE, null, ex);
            return "";
            
        }
        finally {
            try {
                if (reader != null) {
                    reader.close();
                }
            } catch (IOException ex) {
                Logger.getLogger(LirePage.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
}