charsettransform.java

疯狂Java讲义_源码(含Java设计模式CHM

import java.nio.charset.*;
import java.nio.*;
/**
 * Description:
 * <br/>Copyright (C), 2008-2010, Yeeku.H.Lee
 * <br/>This program is protected by copyright laws.
 * <br/>Program Name:
 * <br/>Date:
 * @author  Yeeku.H.Lee [e-mail]
 * @version  1.0
 */
public class CharsetTransform
{
	public static void main(String[] args)
		throws Exception
	{
		//创建简体中文对应的Charset
		Charset cn = Charset.forName("GBK");
		//获取cn对象对应的编码器和解码器
		CharsetEncoder cnEncoder = cn.newEncoder();
		CharsetDecoder cnDecoder = cn.newDecoder();
		//创建一个CharBuffer对象
		CharBuffer cbuff = CharBuffer.allocate(8);
		cbuff.put('孙');
		cbuff.put('悟');
		cbuff.put('空');
		cbuff.flip();
		//将CharBuffer中的字符序列转换成字节序列
		ByteBuffer bbuff = cnEncoder.encode(cbuff);
		//循环访问ByteBuffer中的每个字节
		for (int i = 0; i < bbuff.capacity() ; i++)
		{
			System.out.print(bbuff.get(i) + " ");
		}
		//将ByteBuffer的数据解码成字符序列
		System.out.println("\n"
			+ cnDecoder.decode(bbuff));
	}
}