日期工具类 DateTools

最新推荐文章于 2024-03-20 09:46:05 发布

转载最新推荐文章于 2024-03-20 09:46:05 发布 · 316 阅读

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原文链接：http://www.cnblogs.com/mengjianzhou/p/9066397.html

本文介绍了一个名为DateTools的日期工具类，该类提供了一种用于获取两个时间段交集的方法。通过转换时间戳并比较不同时间段的开始与结束时间来确定它们之间的交集。

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为了跟其他日期工具类进行区分起名字DateTools

public class DateTools {

    /** The DAT e_ forma t1. */
    public static String DATE_FORMAT1 = "yyyy-MM-dd HH:mm:ss";

/**
     * 获取两个时间段的交集
     * @param s1
     * @param e1
     * @param s2
     * @param e2
     * @return
     */
    public static Map<String, LocalDateTime> getOverlapDuration(LocalDateTime s1,LocalDateTime e1,LocalDateTime s2,LocalDateTime e2){
        Map<String, LocalDateTime> localDateTimeMap = new HashMap<>();
        //是否有交集
        long s1InMillis = Timestamp.valueOf(s1).getTime();
        long e1InMillis = Timestamp.valueOf(e1).getTime();
        long s2InMillis = Timestamp.valueOf(s2).getTime();
        long e2InMillis = Timestamp.valueOf(e2).getTime();

        long overlapStartTime = 0;
        long overlapEndTime = 0;
        if((s1InMillis>=s2InMillis&&s1InMillis<=e2InMillis)
                ||(e1InMillis>=s2InMillis&&e1InMillis<=e2InMillis)){
            overlapStartTime = s1InMillis>=s2InMillis?s1InMillis:s2InMillis;
            overlapEndTime = e1InMillis<=e2InMillis?e1InMillis:e2InMillis;
        }
        LocalDateTime start = LocalDateTime.ofInstant(Instant.ofEpochMilli(overlapStartTime), ZoneId.systemDefault());
        LocalDateTime end = LocalDateTime.ofInstant(Instant.ofEpochMilli(overlapEndTime), ZoneId.systemDefault());
        localDateTimeMap.put("start", start);
        localDateTimeMap.put("end" , end);
        return localDateTimeMap;
    }

}

转载于:https://www.cnblogs.com/mengjianzhou/p/9066397.html