如何获得以秒为单位的时差？ [复制]

【问题标题】：How to get the time difference in seconds? [duplicate]如何获得以秒为单位的时差？ [复制]
【发布时间】：2015-03-04 12:18:33
【问题描述】：

我使用过 Jodha Library，并试图在几秒钟内获得两个日期之间的差异。但它只准确到最新。不是秒。

 public static int getDateDifference(DateTime dateCreatedPa)
    {
        LocalDate dateCreated = new LocalDate (dateCreatedPa);
        LocalDate now = new LocalDate();

        Seconds secondsBetween = Seconds.secondsBetween(dateCreated, now);

        return secondsBetween.getSeconds();
    }
       ///code calling the above method

        DateTime dateCreated=new DateTime(drivingLicense.getDateCreated());
        int dateDiff=Common.getDateDifference(dateCreated);            
        request.setAttribute("dateDiff", dateDiff);

        System.out.println("Timestamp: "+dateDiff);

这显示了日期差异。但是如果我在同一日期给出不同的时间进行比较，它会返回 0。

【问题讨论】：

标签： java datetime jodatime

【解决方案1】：

LocalDate 就是这样，只有日期，没有时间信息。请改用LocalDateTime

import org.joda.time.DateTime;
import org.joda.time.LocalDateTime;
import org.joda.time.Seconds;

public class Test {

    public static void main(String[] args) {

        DateTime today = DateTime.now();
        today = today.minusDays(5);
        int dateDiff = getDateDifference(today);
        System.out.println("Timestamp: " + dateDiff);
    }

    public static int getDateDifference(DateTime dateCreatedPa) {
        LocalDateTime dateCreated = new LocalDateTime(dateCreatedPa);
        LocalDateTime now = new LocalDateTime();

        System.out.println(dateCreated);
        System.out.println(now);

        Seconds secondsBetween = Seconds.secondsBetween(dateCreated, now);

        return secondsBetween.getSeconds();
    }

}

输出...

2015-02-27T15:20:56.524
2015-03-04T15:20:56.628
Timestamp: 432000

【讨论】：