将字符串转换为 java.time.ZonedDateTime

Question

I want to convert elements of an array list into ZonedDateTime object after parsing them. A string is shown below.

"2017-02-12 06:59:00 +1300"

At the moment I use the DateTimeFormatter :

DateTimeFormatter dateTimeFormatter =
  DateTimeFormatter.ofPattern("YYYY-MM-dd HH:mm:ss ZZ");

And try to use parse , to get the time:

this.actionTime = dateTimeFormatter.parse(actionTime, ZonedDateTime::from);

See below method:

public DateCalculatorTest(String actionTime, int expectedDayOfWeek) {
    DateTimeFormatter dateTimeFormatter = 
      DateTimeFormatter.ofPattern("YYYY-MM-dd HH:mm:ss ZZ");
    DateTimeFormatter localTimeFormatter = 
      DateTimeFormatter.ofPattern("YYYY-MM-dd");
    this.actionTime = dateTimeFormatter.parse(actionTime, ZonedDateTime::from);
    this.expectedDayOfWeek = expectedDayOfWeek;
}

However, I am not able to parse the string. I get the following error:

Text '2017-02-12 06:59:00 +1300' could not be parsed: Unable to obtain ZonedDateTime from TemporalAccessor: {WeekBasedYear[WeekFields[SUNDAY,1]]=2017, DayOfMonth=12, MonthOfYear=2, OffsetSeconds=46800},ISO resolved to 06:59 of type java.time.format.Parsed

Is there a way to do this with java.time ?

Answer 1

In the DateTimeFormatter years should be small letters. Replace

 YYYY-MM-dd HH:mm:ss ZZ

with

yyyy-MM-dd HH:mm:ss ZZ

And you don't require two ZZ, single is enough. In your code the ZoneId instance will give you default ZoneId . It will fall back to LocalDateTime . If you want to specify the ZoneId use the following

this.actionTime =  ZonedDateTime.parse(actionTime, dateTimeFormatter.withZone(ZoneId.of(<<yourxoneid>>)));

Answer 2

I managed to fix this using the following:

DateTimeFormatter dateTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss ZZ");
DateTimeFormatter localTimeFormatter = DateTimeFormatter.ofPattern("yyyy-MM-dd");
this.symbol = symbol;
this.actionTime = ZonedDateTime.parse(actionTime, dateTimeFormatter);
this.actionDate = LocalDate.parse(expectedResult, localTimeFormatter);