1）scala 时间格式转换（String、Long、Date）
1、时间字符类型转Date类型
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import java.text.SimpleDateFormat
val time = "2017-12-18 00:01:56"
val newtime :Date = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(time)
println(newtime)
//output:Mon Dec 18 00:01:56 CST 2017
2、Long类型转字符类型
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val time:Long= //秒
val newtime :String = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(time*)
println(newtime)
//output:2017-12-21 15:01:07
3、时间字符类型转Long类型
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val time = "2017-12-18 00:01:56"
val newtime :Long= new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").parse(time).getTime
println(newtime)
//output:1513526516000
2)scala 时间和时间戳互转
时间转换为时间戳：
import java.text.SimpleDateFormat
object test {
def main(args: Array[String]): Unit = {
val tm = "2017-08-01 16:44:32"
val a = tranTimeToLong(tm)
println(a)
}
def tranTimeToLong(tm:String) :Long={
val fm = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
val dt = fm.parse(tm)
val aa = fm.format(dt)
val tim: Long = dt.getTime()
tim
}
}
时间戳转化为时间：
import java.text.SimpleDateFormat
import java.util.Date object test { def main(args: Array[String]): Unit = { val tm = ""
val a = tranTimeToString(tm)
println(a) } def tranTimeToString(tm:String) :String={
val fm = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss")
val tim = fm.format(new Date(tm.toLong))
tim
}
}