Java URL Download downloadUrlToFile(URL url, File file)

Description

Downloads the byte contents of a URL to a specified file.

License

Open Source License

Parameter

Parameter	Description
url	URL to download
file	File to which to write downloaded data

Exception

Parameter	Description
IOException	an exception

Declaration

public static void downloadUrlToFile(URL url, File file) throws IOException 

Method Source Code

//package com.java2s;
/*//from w  w w .jav  a2s .  c om
 * The Shepherd Project - A Mark-Recapture Framework
 * Copyright (C) 2011 Jason Holmberg
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;

import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.net.URL;

public class Main {
    /**
     * Downloads the byte contents of a URL to a specified file.
     * @param url URL to download
     * @param file File to which to write downloaded data
     * @throws IOException
     */
    public static void downloadUrlToFile(URL url, File file) throws IOException {
        BufferedInputStream is = null;
        BufferedOutputStream os = null;
        try {
            is = new BufferedInputStream(url.openStream());
            os = new BufferedOutputStream(new FileOutputStream(file));
            byte[] b = new byte[4096];
            int len = -1;
            while ((len = is.read(b)) != -1)
                os.write(b, 0, len);
            os.flush();
        } finally {
            if (os != null)
                os.close();
            if (is != null)
                is.close();
        }
    }
}

Related

1. downloadURL(String addr, File outFile)
2. downloadURL(String url, String outFile)
3. downloadURL(URL url, File file)
4. downloadURL(URL url, String localPath)
5. downloadUrlToFile(String surl, File file, String method)
6. downloadUrlToFile(URL url, File result)
7. downloadWebpage(String url)
8. downloadZip(URL file, File dump)
9. downlod(String url, File dest)