两个字段相同的list去重

首先是24小时以内的查timesten里面的超过24小时 先查timesten再查stat4imsi，但是里面会有IMSI相同的，根据IMEI不同取最新的数据

 List<TimestenStat4imsi> timestenStat4imsiList = timestenStat4imsiMapper.findTimestenStat4imsi(statMap);
        List<Stat4imsi> stat4imsiList = stat4imsiMapper.findAllStat4imsi(statMap);
for (TimestenStat4imsi timestenStat4imsi : timestenStat4imsiList){
             ttimsi = timestenStat4imsi.getImsi();
             ttimei = timestenStat4imsi.getImei();

        }
        for (Stat4imsi stat4imsi : stat4imsiList){
             aimsi = stat4imsi.getImsi();
             aimei = stat4imsi.getImei();

        }
        Date date = new Date();
        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String format = formatter.format(date);
        Date starttime = formatter.parse(start);
        Date uptime = formatter.parse(format);
        long time1 = starttime.getTime();
        long time2 = uptime.getTime();
        int hours = (int) ((time2 - time1) / (1000 * 60 * 60));
        if (hours<=24){
            listend.add(timestenStat4imsiList);
        }
        else {
            if (aimsi.equals(ttimsi)){

            }
        }

采用stream.filter过滤一下就行了