import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class Util {
public static final int BUFFER_SIZE = 4096;
public void read(File src, OutputStream dest) {
FileChannel channel = null;
int bytesRead = -1;
try {
channel = new FileInputStream(src).getChannel();
ByteBuffer buffer = ByteBuffer.allocate(BUFFER_SIZE);
while ((bytesRead = channel.read(buffer)) != -1) {
buffer.flip();
dest.write(buffer.array(), 0, bytesRead);
buffer.clear();
}
} catch (Exception e) {
System.out.println(e);
} finally {
try {
if (dest != null) {
dest.flush();
dest.close();
}
if (channel != null) {
channel.close();
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
}