【代码列表】

1、时间格式化

Date date = new Date();
date.setTime(1345016039L * 1000);
SimpleDateFormat dateformat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
System.out.println(dateformat.format(date))

 2、正则表达式获取域名

private String getDomainFromUrl(String url) {

        Pattern p = Pattern.compile("(?<=//|)((\\w|-)+\\.)+\\w+", Pattern.CASE_INSENSITIVE);

        Matcher matcher = p.matcher(url);
        if (matcher.find()) {
            return matcher.group(0);
        } else {
            return "";
        }
    }