我需要标准化并比较不同时区的日期/时间字段。例如,您如何找到以下两次之间的时差?...
"18-05-2012 09:29:41 +0800"
"18-05-2012 09:29:21 +0900"
使用日期/时间初始化标准变量的最佳方法是什么? 输出需要在时区(例如+0100)中显示差异和标准化数据,该时区与传入值不同且与本地环境不同。
预期产出:
18-05-2012 02:29:41 +0100
18-05-2012 01:29:21 +0100
Difference: 01:00:20
答案 0 :(得分:6)
import java.text.SimpleDateFormat
def dates = ["18-05-2012 09:29:41 +0800",
"18-05-2012 09:29:21 +0900"].collect{
new SimpleDateFormat("dd-MM-yyyy HH:mm:ss Z").parse(it)
}
def dayDiffFormatter = new SimpleDateFormat("HH:mm:ss")
dayDiffFormatter.setTimeZone(TimeZone.getTimeZone("UTC"))
println dates[0]
println dates[1]
println "Difference "+dayDiffFormatter.format(new Date(dates[0].time-dates[1].time))
哇。看起来不可读,不是吗?
答案 1 :(得分:3)
<强>解决方案:强>
-
import java.text.SimpleDateFormat
import java.text.DateFormat
//Initialise the dates by parsing to the specified format
Date timeDate1 = new Date().parse("dd-MM-yyyy HH:mm:ss Z","18-05-2012 09:29:41 +0800")
Date timeDate2 = new Date().parse("dd-MM-yyyy HH:mm:ss Z","18-05-2012 09:29:21 +0900")
DateFormat yearTimeformatter = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss Z")
DateFormat dayDifferenceFormatter= new SimpleDateFormat("HH:mm:ss") //All times differences will be less than a day
// The output should contain the format in UK time (including day light savings if necessary)
yearTimeformatter.setTimeZone(TimeZone.getTimeZone("Europe/London"))
// Set to UTC. This is to store only the difference so we don't want the formatter making further adjustments
dayDifferenceFormatter.setTimeZone(TimeZone.getTimeZone("UTC"))
// Calculate difference by first converting to the number of milliseconds
msDiff = timeDate1.getTime() - timeDate2.getTime()
Date differenceDate = new Date(msDiff)
println yearTimeformatter.format(timeDate1)
println yearTimeformatter.format(timeDate2)
println "Difference " + dayDifferenceFormatter.format(differenceDate)
答案 2 :(得分:3)
或者,使用JodaTime包
@Grab( 'joda-time:joda-time:2.1' )
import org.joda.time.*
import org.joda.time.format.*
String a = "18-05-2012 09:29:41 +0800"
String b = "18-05-2012 09:29:21 +0900"
DateTimeFormatter dtf = DateTimeFormat.forPattern( "dd-MM-yyyy HH:mm:ss Z" );
def start = dtf.parseDateTime( a )
def end = dtf.parseDateTime( b )
assert 1 == Hours.hoursBetween( end, start ).hours