Download from URL
/**
*
DEScribe - A Discrete Experience Sampling cross platform application
Copyright (C) 2011
Sbastien Faure <sebastien.faure3@gmail.com>,
Bertrand Gros <gros.bertrand@gmail.com>,
Yannick Prie <yannick.prie@univ-lyon1.fr>.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*
*
* Source : http://www.javafr.com/codes/TELECHARGER-FICHIER-PARTIR-URL_42988.aspx
* Author : Jaoued Zahraoui for Javafr.
*
*
*/
//package api.utils;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
/**
* Class UrlHelper.java
* @description Tool to download file from url
* @author Sbastien Faure <sebastien.faure3@gmail.com>
* @author Bertrand Gros <gros.bertrand@gmail.com>
* @version 2011-02-01
*/
public class UrlHelper {
public static void downloadFile(String adresse) {
downloadFile(adresse, null);
}
public static void downloadFile(String adresse, File dest) {
BufferedReader reader = null;
FileOutputStream fos = null;
InputStream in = null;
try {
// cration de la connection
URL url = new URL(adresse);
URLConnection conn = url.openConnection();
String FileType = conn.getContentType();
int FileLenght = conn.getContentLength();
if (FileLenght == -1) {
throw new IOException("Fichier non valide.");
}
// lecture de la rponse
in = conn.getInputStream();
reader = new BufferedReader(new InputStreamReader(in));
if (dest == null) {
String FileName = url.getFile();
FileName = FileName.substring(FileName.lastIndexOf('/') + 1);
dest = new File(FileName);
}
fos = new FileOutputStream(dest);
byte[] buff = new byte[1024];
int l = in.read(buff);
while (l > 0) {
fos.write(buff, 0, l);
l = in.read(buff);
}
} catch (Exception e) {
e.printStackTrace();
} finally {
try {
fos.flush();
fos.close();
} catch (IOException e) {
e.printStackTrace();
}
try {
reader.close();
} catch (Exception e) {
e.printStackTrace();
}
}
}
}
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