java unicode轉中文

 /**
     * @param str unicode字符串
     * @return 中文的字符串
     */
    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;

    }

如輸入unicode字符串：\u670d\u88c5

返回中文 ：服裝