GBK和UTF-8格式的转换

1、把UFT-8格式的字符串转化为UNICODE编码的字符串

String str = "/n1234";

String gbk="---";

 try {
String unicode = new String(str.getBytes(),"UTF-8");         
 gbk = new String(unicode.getBytes("GBK"));
 } catch (UnsupportedEncodingException e) {
  e.printStackTrace();
}