scala 获得两个日期之间的时间序列，左闭右开

最新推荐文章于 2024-06-23 09:39:15 发布

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最新推荐文章于 2024-06-23 09:39:15 发布

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分类专栏： Scala 文章标签： scala java

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/**
   * 给定开始日期、结束日期，得到之间的时间序列
   * 左闭右开
   * 最细粒度到天
   * println(getBetweenDaySeq("2021-01-03","2021-01-06","yyyy-MM-dd").toList.toString())
   * 
   * @param bTime 开始日期
   * @param eTime 结束日期
   * @param format
   * @return
   */
  def getBetweenDaySeq(bTime: String, eTime: String, format: String = "yyyy-MM-dd HH:mm:ss"): ArrayBuffer[String] = {
    val betweenDaySeq = ArrayBuffer[String]()
    try {
      val simpleDateFormat = new SimpleDateFormat(format)
      val bDateFormat = simpleDateFormat.parse(bTime)
      val eDateFormat = simpleDateFormat.parse(eTime)
      val outSimpleDateFormat = new SimpleDateFormat("yyyy-MM-dd")
      val bCalender = java.util.Calendar.getInstance()
      val eCalender = java.util.Calendar.getInstance()
      bCalender.setTime(bDateFormat)
      eCalender.setTime(eDateFormat)
      val bYear = bCalender.get(Calendar.YEAR)
      val bMonth = bCalender.get(Calendar.MONTH)
      val bDay = bCalender.get(Calendar.DATE)

      val eYear = eCalender.get(Calendar.YEAR)
      val eMonth = eCalender.get(Calendar.MONTH)
      val eDay = eCalender.get(Calendar.DATE)

      bCalender.set(bYear, bMonth, bDay, 0, 0, 0)
      eCalender.set(eYear, eMonth, eDay, 0, 0, 0)

      while (bCalender.before(eCalender)) {
        betweenDaySeq.append(outSimpleDateFormat.format(bCalender.getTime))
        bCalender.add(Calendar.DAY_OF_YEAR, 1)
      }
      // 是否包含右侧边界，解除注释将变为左闭右闭
      //      betweenDaySeq.append(outSimpleDateFormat.format(eCalender.getTime))
    }
    catch {
      case ex: Exception => ex.printStackTrace() // 打印到标准err
    }
    betweenDaySeq
  }