转换JAXBElement< XMLGregorianCalendar>到OffsetDateTime [英] Convert JAXBElement<XMLGregorianCalendar> to OffsetDateTime

问题描述

我正在尝试将JAXBElement-XMLGregorianCalendar转换为offsetDateTime.我能够做到这一点，但我想将日期转换为特定格式.

I am trying to convert the JAXBElement-XMLGregorianCalendar to offsetDateTime. I am able to do that but i want to convert the date in a particular format.

我正在转换的代码:calendarValue是2016-03-25T00:00:00 + 05:30，但我需要将类型转换为offsetDateTime，所以我在转换以下进行操作

Code i am using to convert : calendarValue is 2016-03-25T00:00:00+05:30 but i need to covert the type to offsetDateTime so i am doing below conversion

calendarValue.toGregorianCalendar().getTime().toInstant().atOffset(ZoneOffset.UTC)

作为响应，我将转换后的值转换为:2016-03-24T18:30:00Z，而我希望将转换后的值转换为:2016-03-25T00:00:00 + 05:30.

In response i am getting the value after converting as : 2016-03-24T18:30:00Z while i want the converted value as : 2016-03-25T00:00:00+05:30.

任何人都可以帮助获得所需的dateTime转换.

Could anyone pls help to get the desired conversion of dateTime.

推荐答案

tl; dr

myXMLGregorianCalendar
.toGregorianCalendar()
.toZonedDateTime()
.format( 
    DateTimeFormatter.ISO_OFFSET_DATE_TIME 
)

详细信息

将 XMLGregorianCalendar 传统对象转换为另一个传统类 GregorianCalendar 作为中间步骤.

Details

Convert an XMLGregorianCalendar legacy object to another legacy class, GregorianCalendar as an intermediate step.

GregorianCalendar gc = myXMLGregorianCalendar.toGregorianCalendar() ;

转换为现代班.

ZonedDateTime zdt = gc.toZonedDateTime() ;

此 ZonedDateTime 对象可能满足您的需求.

This ZonedDateTime object may meet your needs.

以所需的格式生成表示该时刻值的字符串，尽管不幸的是，格式会掩盖时区的名称，这是有价值的信息.

Generate a string representing the value of this moment in your desired format, though your format unfortunately masks the name of the time zone which is valuable information.

String output = zdt.format( DateTimeFormatter.ISO_OFFSET_DATE_TIME ) ;

但是，如果您希望将同一时刻调整为UTC，只需提取一个 Instant .

But if you want to see that same moment adjusted to UTC, just extract a Instant.

Instant instant = zdt.toInstant() ;

如果您需要更灵活的 OffsetDateTime 类，请应用一个偏移量.

If you need the more flexible OffsetDateTime class, apply an offset.

OffsetDateTime odt = instant.atOffset( ZoneOffset.UTC ) ;

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