Java获取2个日期之间的秒数[重复]

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• In Java, how do I get the difference in seconds between 2 dates? 11 answers

在Java中,如何获得2个日期之间的秒数差异? 11个答案

I'm trting to send data every 10 seconds , so I'm trying tp use this code I wrote but I think I made a mistake in the converting to seconds?

我每10秒发送一次数据,所以我正在尝试使用我编写的代码,但我认为我在转换为秒时犯了一个错误?

Calendar Time= Calendar.getInstance();
Calendar SendDate= Calendar.getInstance();

long upload = TimeBetweenDates(SendTime,Time);

if (upload > 10000) {
    String udp = "OK";
    SendUDP(udp);
    SendTime = Calendar.getInstance();
}


public static long TimeBetweenDates (Calendar Start , Calendar End) {
    long end = End.getTimeInMillis();
    long start = Start.getTimeInMillis();

    return TimeUnit.MILLISECONDS.toSeconds(Math.abs(end - start)); 
}

1 个解决方案

#1

If you're "trying to send data every 10 seconds", you can just do

如果您“尝试每10秒发送一次数据”,您就可以这样做

ScheduledExecutorService service = Executors.newScheduledThreadPool();

service.scheduleAtFixedRate(() -> sendUdp("OK"), 10, 10, TimeUnit.SECONDS);