import java.io.*;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.channels.FileChannel;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
/**
 * Description:
 * <br/>Copyright (C), 2005-2008, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee kongyeeku@163.com
 * @version  1.0
 */
public class ReadFile
{
	public static void main(String[] args)
	{
		FileChannel fcin = null;
		try
		{
			//創建文件輸入流
			FileInputStream fis = new FileInputStream("ReadFile.java");
			//創建一個FileChannel
			fcin = fis.getChannel();
			//定義一個ByteBuffer對象，用于重復取水
			ByteBuffer bbuff = ByteBuffer.allocate(1024);
			//將FileChannel中數據放入ByteBuffer中
			while( fcin.read(bbuff) != -1 )
			{
				//鎖定Buffer的空白區
				bbuff.flip();         
				//創建Charset對象
				Charset charset = Charset.forName("gb2312");
				//創建解碼器(CharsetDecoder)對象
				CharsetDecoder decoder = charset.newDecoder();
				//將ByteBuffer的內容轉碼
				CharBuffer cbuff = decoder.decode(bbuff);
				System.out.println(cbuff);
				//將Buffer初始化，為下一次取數據做準備
				bbuff.clear();
			}
		}
		catch (IOException ex)
		{
			ex.printStackTrace();
		}
		finally
		{
			try
			{
				if (fcin != null)
					fcin.close();
			}
			catch (IOException ex)
			{
				ex.printStackTrace();
			}
		}
	}
}