Java字符串转码操作

package com.gionee.baserom.search.util;

import java.io.UnsupportedEncodingException;

public class StringEncodeDecodeTest {

public static void main(String[] args) {

String s = "123abc四五六七";  

        byte[] b;

try {

b = s.getBytes("utf-8");

String sa = new String(b, "utf-8");//解码:用什么字符集编码就用什么字符集解码  

System.out.println(sa);  

b = sa.getBytes("gbk");//编码  

sa = new String(b, "gbk");//解码  

System.err.println(sa);

} catch (UnsupportedEncodingException e) {

e.printStackTrace();

}

}

}