It makes sense: your input is not really a date because it does not have a day information. You should parse it as a YearMonth and use that result if you don’t care about the day. String date = “04.2013”; DateTimeFormatter formatter = DateTimeFormatter.ofPattern(“MM.yyyy”); YearMonth ym = YearMonth.parse(date, formatter); If you do need to apply … Read more
For Hibernate 5.X just add <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-java8</artifactId> <version>${hibernate.version}</version> </dependency> and @NotNull @Column(name = “date_time”, nullable = false) protected LocalDateTime dateTime; will work without any additional effort. See https://hibernate.atlassian.net/browse/HHH-8844 UPDATE: Please have a look at Jeff Morin comment: since Hibernate 5.2.x it is enough <dependency> <groupId>org.hibernate</groupId> <artifactId>hibernate-core</artifactId> <version>5.2.1.Final</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-…</artifactId> <version>4.3.1.RELEASE</version> </dependency> See … Read more
You are looking for ZonedDateTime class in Java8 – a complete date-time with time-zone and resolved offset from UTC/Greenwich. In terms of design, this class should be viewed primarily as the combination of a LocalDateTime and a ZoneId. The ZoneOffset is a vital, but secondary, piece of information, used to ensure that the class represents … Read more
The ISO_INSTANT formatter is documented here – “This is a special case formatter intended to allow a human readable form of an Instant”. As such, this formatter is intended for use with an Instant not a ZonedDateTime. Formatting When formatting, ISO_INSTANT can format any temporal object that can provide ChronoField.INSTANT_SECONDS and ChronoField.NANO_OF_SECOND. Both Instant and … Read more
You can use java.time.format.DateTimeFormatter. https://docs.oracle.com/javase/8/docs/api/java/time/format/DateTimeFormatter.html Here there is an example ZonedDateTime date = ZonedDateTime.now(); System.out.println(DateTimeFormatter.ofPattern(“dd/MM/yyyy – hh:mm”).format(date));
Converting from LocalDate to XMLGregorianCalendar: LocalDate date = LocalDate.now(); GregorianCalendar gcal = GregorianCalendar.from(date.atStartOfDay(ZoneId.systemDefault())); XMLGregorianCalendar xcal = DatatypeFactory.newInstance().newXMLGregorianCalendar(gcal); Converting back is simpler: xcal.toGregorianCalendar().toZonedDateTime().toLocalDate();
Let’s look at what the docs say: This class models a quantity or amount of time in terms of seconds and nanoseconds. That basically means that the unit used to store the amount of time represented is seconds. For example, to store the duration 5 minutes and 10 nanoseconds, 300 (seconds) and 10 (nanoseconds) are … Read more
The string “9999-12-31” only contains information about a date. It does not contain any information about the time-of-day or offset. As such, there is insufficient information to create an Instant. (Other date and time libraries are more lenient, but java.time avoids defaulting these values) Your first choice is to use a LocalDate instead of an … Read more
Assuming you mainly want to iterate over the date range, it would make sense to create a DateRange class that is iterable. That would allow you to write: for (LocalDate d : DateRange.between(startDate, endDate)) … Something like: public class DateRange implements Iterable<LocalDate> { private final LocalDate startDate; private final LocalDate endDate; public DateRange(LocalDate startDate, LocalDate … Read more
This does not work because your input (and your Formatter) do not have time zone information. A simple way is to parse your date as a LocalDate first (without time or time zone information) then create a ZonedDateTime: public static ZonedDateTime convertirAFecha(String fecha) { DateTimeFormatter formatter = DateTimeFormatter.ofPattern(“dd/MM/yyyy”); LocalDate date = LocalDate.parse(fecha, formatter); ZonedDateTime resultado … Read more