java 从mysql中的integer转成时间类型

 Date nedate = new Date();
        DateFormat dateformat = new SimpleDateFormat("yyy-MM-dd HH:mm:ss");
        int seconds=1481194381;
        long millions=new Long(seconds)*1000;
        nedate.setTime(millions);
        System.out.println(dateformat.format(nedate));

时间转换

 Date date=new Date();
                    int seconds=popSsuSku.getFirstOnlineTime();
                    long millions=new Long(seconds)*1000;
                    date.setTime(millions);
                     DateUtil.getDateFormat(date);//首次上架时间