Java對URL中的中文進行編碼工具類

public static String encode(String url,String chartSet)
    {
        try {
            Matcher matcher = Pattern.compile("[\\u4e00-\\u9fa5]").matcher(url);
            while (matcher.find()) {
                String tmp=matcher.group();
                url=url.replaceAll(tmp,java.net.URLEncoder.encode(tmp,chartSet));
            }
        } catch (UnsupportedEncodingException e) {
            e.printStackTrace();
        }
        return url;
    }