Here you can find the source of copyResource(URL from, File to)
public static void copyResource(URL from, File to)
//package com.java2s; /*//from ww w .j av a 2 s.c o m * HJB4U is toolchain for creating a HyperJAXB front end for database users. * Copyright (C) 2010 NigelB * * 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.*; import java.net.URL; public class Main { public static void copyResource(URL from, File to) { if (from == null) { System.out.printf("Resource could not be copied to: %s%n", to); return; } System.out.printf("Copring resource: %s to: %s%n", from, to); try { OutputStream fos = new BufferedOutputStream(new FileOutputStream(to)); InputStream in = new BufferedInputStream(from.openStream()); int data = -1; while (true) { data = in.read(); if (data == -1) break; fos.write(data); } fos.close(); in.close(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } }