获取json化的时间相差的秒

import java.time.Duration;
import java.time.Instant;
import java.time.LocalDateTime;
import java.time.ZoneId;

/**
 * 期间
 *
 * @param startTime 开始时间
 * @param endTime   结束时间
 * @return {@link String}
 */
private long duration(Date startTime, Date endTime) {
    Instant startInstant = startTime.toInstant();
    Instant endInstant = endTime.toInstant();
    ZoneId zoneId = ZoneId.systemDefault();
    LocalDateTime start = startInstant.atZone(zoneId).toLocalDateTime();
    LocalDateTime end = endInstant.atZone(zoneId).toLocalDateTime();
    long minutes = Duration.between(start, end).toMinutes();
    return minutes * 60;
}