filechannelexample1.java

JAVA SE6 全方位学习 朱仲杰 编著 机械工业出版社出版

import java.io.*;
import java.nio.*;
import java.nio.channels.*;

public class FileChannelExample1
{
	public static void main(String args[]) throws Exception
	{
		FileInputStream fin = new FileInputStream(args[0]);
		FileChannel fcin = fin.getChannel();
		FileOutputStream fout = new FileOutputStream(args[1]);
		FileChannel fcout = fout.getChannel();
		
		ByteBuffer bb = ByteBuffer.allocate(1048576); //1 MB
		while (fcin.read(bb) >= 0)
		{
			bb.flip();
			fcout.write(bb);
			bb.clear();
		}

		fcout.close();
		fcin.close();
		fin.close();
		fout.close();
	}
}