优化国标录像服务端，使用zlm新接口实现功能

648540858

2023-12-05 ad36354ef46a31f24b2583263f575d6736c0ad28

 src/main/java/com/genersoft/iot/vmp/utils/DateUtil.java

@@ -139,4 +139,13 @@
        Instant beforeInstant = Instant.from(formatter.parse(keepaliveTime));
        return ChronoUnit.MILLIS.between(beforeInstant, Instant.now());
    }

    public static long getDifference(String startTime, String endTime) {
        if (ObjectUtils.isEmpty(startTime) || ObjectUtils.isEmpty(endTime)) {
            return 0;
        }
        Instant startInstant = Instant.from(formatter.parse(startTime));
        Instant endInstant = Instant.from(formatter.parse(endTime));
        return ChronoUnit.MILLIS.between(endInstant, startInstant);
    }
}