|
获取当前时间
var dateFormat: SimpleDateFormat = new SimpleDateFormat("yyyy-MM-dd")
var cal: Calendar = Calendar.getInstance()
val nowday = dateFormat.format(cal.getTime())
println(nowday)
获取前1天日期
val date = "2020-09-13"
val myformat = new SimpleDateFormat("yyyy-MM-dd")
var dnow = new Date()
dnow = myformat.parse(date)
val cal1 = Calendar.getInstance()
cal1.setTime(dnow)
cal1.add(Calendar.DATE, -1)
println(myformat.format(cal1.getTime()))
获取两日期时间差
val dateFormat = new SimpleDateFormat("yyyyMMdd")
val st = dateFormat.parse("20200101")
val end = dateFormat.parse("20200104")
val tm1 = st.getTime
val tm2 = end.getTime
val btDays = (tm2-tm1)/(1000*3600*24)
获取两日期间所有日期
/**
* 获取两个日期之间的日期
*
* @param start 开始日期
* @param end 结束日期
* @return 日期集合
*/
def getBetweenDates(start: String, end: String) = {
val startData = new SimpleDateFormat("yyyy-MM-dd").parse(start); //定义起始日期
val endData = new SimpleDateFormat("yyyy-MM-dd").parse(end); //定义结束日期
val dateFormat: SimpleDateFormat = new SimpleDateFormat("yyyyMMdd")
var buffer = new ListBuffer[String]
buffer += dateFormat.format(startData.getTime())
val tempStart = Calendar.getInstance()
tempStart.setTime(startData)
tempStart.add(Calendar.DAY_OF_YEAR, 1)
val tempEnd = Calendar.getInstance()
tempEnd.setTime(endData)
while (tempStart.before(tempEnd)) {
// result.add(dateFormat.format(tempStart.getTime()))
buffer += dateFormat.format(tempStart.getTime())
tempStart.add(Calendar.DAY_OF_YEAR, 1)
}
buffer += dateFormat.format(endData.getTime())
buffer.toList
}
| 
转播
