java unicode转中文

public static String unicodeToString(String str) {

 

    Pattern pattern = Pattern.compile("(\\\\u(\\p{XDigit}{4}))");    

    Matcher matcher = pattern.matcher(str);

    char ch;

    while (matcher.find()) {

        ch = (char) Integer.parseInt(matcher.group(2), 16);

        str = str.replace(matcher.group(1), ch + "");    

    }

    return str;

}

获取字符串的unicode编码，这个我们可以通过直接获取字符串的unicode二进制，然后将其byte转换成对应的16进制表示

static String getUnicode(String s) {

        try {

            StringBuffer out = new StringBuffer("");

            byte[] bytes = s.getBytes("unicode");

            for (int i = 0; i < bytes.length - 1; i += 2) {

                out.append("\\u");

                String str = Integer.toHexString(bytes[i + 1] & 0xff);

                for (int j = str.length(); j < 2; j++) {

                    out.append("0");

                }

                String str1 = Integer.toHexString(bytes[i] & 0xff);

                out.append(str1);

                out.append(str);

                 

            }

            return out.toString();

        } catch (UnsupportedEncodingException e) {

            e.printStackTrace();

            return null;

        }

    }

http://www.cnblogs.com/xignzou/p/3329438.html