java - 计算两个 Java Timestamp 对象之间耗时

Question

我有两个 Timestamp 对象，一个用于当前时间，一个用于过去的某个时间。如何计算两个时间戳之间经过的小时数？

java.sql.Timestamp currentTS = Timestamp(Calendar.getInstance().get(Calendar.MILLISECOND));
java.sql.Timestamp lastProcessedTS = Timestmp.valueOf(<some value in past>);

Answer 1

long elapsedTimeMillis = lastProcessedTS.getTime() - currentTS.getTime();
long hours = (elapsedTimeMillis / (1000 * 60 * 60)) % 24;