Java URL Download download(String url, String toFile)

Description

download

License

Apache License

Declaration

public static void download(String url, String toFile) throws MalformedURLException, IOException 

Method Source Code

//package com.java2s;
/*//  w  w w.  ja va 2s  . c o m
 * Copyright 2011 ancoron.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.logging.Level;
import java.util.logging.Logger;

public class Main {
    private final static int BUFFER = 4 * 1024;
    private static final Logger log = Logger.getLogger("glassfishtest");

    public static void download(String url, String toFile) throws MalformedURLException, IOException {
        log.log(Level.INFO, "Downloading {0} ...", url);

        long startTime = System.currentTimeMillis();

        URL intUrl = new URL(url);
        intUrl.openConnection();
        InputStream reader = intUrl.openStream();

        /*
         * Setup a buffered file writer to write
         * out what we read from the website.
         */
        FileOutputStream writer = new FileOutputStream(toFile);

        try {
            byte[] buffer = new byte[BUFFER];
            int totalBytesRead = 0;
            int bytesRead = 0;

            // log.info("Reading ZIP file 150KB blocks at a time.\n");

            while ((bytesRead = reader.read(buffer)) > 0) {
                writer.write(buffer, 0, bytesRead);
                totalBytesRead += bytesRead;
            }

            long endTime = System.currentTimeMillis();

            log.log(Level.INFO, "Done. {0} bytes read ({1} milliseconds).", new Object[] {
                    new Integer(totalBytesRead).toString(), new Long(endTime - startTime).toString() });
        } finally {
            writer.close();
            reader.close();
        }
    }
}

Related

1. download(String downloadUrlStr, String filename)
2. download(String fileUrl, String savePath, String fileName)
3. download(String url)
4. download(String url, String path)
5. download(String url, String saveFile)
6. download(String urlAddress, File file)
7. download(String urlString)
8. download(String urlString, File output)
9. download(URL source, File destination)