Java URL Download nio download(File dist, URL src)

Description

download

License

Open Source License

Declaration

public static boolean download(File dist, URL src) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.Closeable;
import java.io.File;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.net.URL;
import java.net.URLConnection;
import java.nio.channels.Channels;
import java.nio.channels.FileChannel;
import java.nio.channels.ReadableByteChannel;

public class Main {
    public static boolean download(File dist, URL src) {

        InputStream is = null;//from   www.j a v  a 2  s  . c  o  m
        ReadableByteChannel in = null;
        FileOutputStream fos = null;
        FileChannel out = null;
        try {

            URLConnection connection = src.openConnection();
            is = connection.getInputStream();
            in = Channels.newChannel(is);

            fos = new FileOutputStream(dist);
            out = fos.getChannel();

            out.transferFrom(in, 0, connection.getContentLength());

            return true;

        } catch (IOException e) {

            return false;

        } finally {
            close(in, is, out, fos);
        }

    }

    public static void close(Closeable... closeables) {

        for (Closeable c : closeables)
            try {
                c.close();
            } catch (IOException e) {
                /* ignore */ }

    }
}

Related

1. canDownload(String filePath)
2. download(String from, String to)
3. download(String link, File destFile)
4. download(String url, File output)
5. download(String url, String destPath)