从JSON字符串确定TimeZone? [英] Determine TimeZone from a JSON String?

问题描述

我正在查询返回如下内容的JSON API:

I'm querying a JSON API that returns something like this:

{
  "created_time": "2017-01-05T16:32:29+0100",
  "updated_time": "2017-01-11T09:38:41+0100",
  "id": "23842536731240607"
}

我需要以UTC格式存储时间，但是为了更改时区，我首先需要将其解析为ZonedDateTime.

I need to store the times in UTC format, but in order to change the timezone, I first need to parse it as a ZonedDateTime.

将"+0100"转换为"+01:00"很容易.但是，如何将(创建/更新的)_time解析为ZonedDateTime，以便将其转换为UTC?

To convert "+0100" to "+01:00" is easy enough. But how can I parse the (created/updated)_time into a ZonedDateTime so I can convert it to UTC?

推荐答案

好，让我分解一下问题陈述.

Well let me break down the problem statement.

首先，如果您要查询API，则可以假定它们遵循某种标准的Date-Time格式(即使您正在创建一个).查看给定的日期，就像他们遵循的那样-** ISO 8601 -日期和时间格式**

First if you are querying an API then it can be assumed that they are following some standard Date-Time format (even if you are creating one). Looking over the given date it looks like they follow - ** ISO 8601 - Date and time format **

所以问题是如何解析 ISO 8601-日期和时间格式

有哪些最佳选择?

• 使用 Joda时间.

• 使用日期时间API Java- 8

//Joda
String jtDate = "2010-01-01T12:00:00+01:00";
DateTimeFormatter yoda = ISODateTimeFormat.dateTimeNoMillis();
System.out.println(parser2.parseDateTime(jtDate));

//using Java 8 (As you specified - To convert "+0100" to "+01:00"    is easy enough.)
String strDate = "2017-01-05T16:32:29+01:00";
DateTimeFormatter timeFormatter = DateTimeFormatter.ISO_DATE_TIME;
TemporalAccessor convertMe = timeFormatter.parse(strDate);
Date date = Date.from(Instant.from(convertMe));
System.out.println(date);

希望它会有所帮助:)

Hope it helps :)

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