[英]ISO8601 to DateTime with time zone information preserved
Below is a deserialization of an ISO8601 date string that contains time zone information. 下面是包含时区信息的ISO8601日期字符串的反序列化。 Notice that the time zone information is lost: 请注意,时区信息丢失:
scala> val date1 = new DateTime().withZone(DateTimeZone.forID("Europe/Berlin"))
date1: org.joda.time.DateTime = 2013-09-22T18:42:15.348+02:00
scala> date1.getZone()
res45: org.joda.time.DateTimeZone = Europe/Berlin
scala> val date2 = new DateTime(date1.toString())
date2: org.joda.time.DateTime = 2013-09-22T19:42:15.348+03:00
scala> date2.getZone()
res46: org.joda.time.DateTimeZone = Europe/Vilnius
scala> date1.getZone() == date2.getZone()
res47: Boolean = false
Time zone information (UTC offset) is serialized, as in +03:00
and +02:00
at the end of the ISO8601 strings, but it is lost after deserialization. 时区信息(UTC偏移)被序列化,如ISO8601字符串末尾的+ +03:00
和+02:00
,但在反序列化后丢失。 As you can see the date2
DateTime object, which I expected to be a copy of date1
has the system's UTC offset instead of +02:00
, which date1
had. 正如你所看到的date2
DateTime对象,这是我预计的副本date1
对系统的UTC偏移,而非+02:00
,其中date1
了。
How do I deserialize an ISO8601 string as to preserve the UTC offset? 如何反序列化ISO8601字符串以保留UTC偏移量?
The constructor you are using, new DateTime(Object instant)
, (actually passed through to BaseDateTime
) doesn't parse , instead it converts the given object (in your case, a String
). 您正在使用的构造函数, new DateTime(Object instant)
,(实际传递给BaseDateTime
)不会解析 ,而是转换给定的对象(在您的情况下,为String
)。
Long story short, it uses the default time zone: 长话短说,它使用默认时区:
Instant
and requests an InstantConverter from ConverterManager
构造函数将传递的参数视为Instant
并从ConverterManager
请求InstantConverter getInstantMillis()
on that StringConverter
构造函数在StringConverter
上调用getInstantMillis()
DateTimeFormatter
, however instead of parse
it calls parseMillis()
. 该方法实际上使用标准的ISO 8601 DateTimeFormatter
,但是它不是parse
而是调用parseMillis()
。 parseMillis
, as you can see from the javadocs , returns a date in the default time zone . 从javadocs可以看到, parseMillis
在默认时区中返回一个日期。 Use DateTime.parse
instead: 改为使用DateTime.parse
:
DateTime date2 = DateTime.parse(date1.toString());
// 2013-09-22T19:21:48.461+02:00
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.