java实现汉字转unicode与汉字转16进制实例

public static String toUnicode(String s)
{
        String as[] = new String[s.length()];
        String s1 = "";
        for (int i = 0; i < s.length(); i++)
        {
            as[i] = Integer.toHexString(s.charAt(i) & 0xffff);
            s1 = s1 + as[i]+"\t";
        }
        return s1;
}

public static String toChineseHex(String s)
{
        String ss = s;
        byte[] bt = ss.getBytes();
        String s1 = "";
        for (int i = 0; i < bt.length; i++)
        {
            String tempStr = Integer.toHexString(bt[i]);
            if (tempStr.length() > 2)
                tempStr = tempStr.substring(tempStr.length() - 2);
            s1 = s1 + tempStr + " ";
        }
        return s1.toUpperCase();
}