java - Vaadin datepicker翻译月份

Question

有没有办法让日期选择器以默认英语以外的其他语言显示月份？

例如在德语/DE 中将它设置为将 June 显示为 Juni ？

Answer 1

您可以通过设置 I18N-ize DatePickersetI18n(DatePicker.DatePickerI18n) 值。例如

def datePicker = new DatePicker().tap {
    setI18n(new DatePicker.DatePickerI18n().tap {
        def locale = Locale.GERMAN

        // date formats
        setDateFormats(
            DateTimeFormatterBuilder.getLocalizedDateTimePattern(
                FormatStyle.MEDIUM,
                null,
                IsoChronology.INSTANCE,
                locale
            ).replace('y', 'yyyy'),
            // this would be useful in theory, but is not in practice, because the first format always wins
            DateTimeFormatterBuilder.getLocalizedDateTimePattern(
                FormatStyle.SHORT,
                null,
                IsoChronology.INSTANCE,
                locale
            )
        )

        // days
        def daysOfWeek = [DayOfWeek.SUNDAY] + DayOfWeek.values().toList() // sunday first, because ISO is a joke for some
        setWeekdays(daysOfWeek*.getDisplayName(TextStyle.FULL, locale))
        setWeekdaysShort(daysOfWeek*.getDisplayName(TextStyle.SHORT, locale))
        setFirstDayOfWeek(WeekFields.of(locale).firstDayOfWeek.value % 7) // this works because, because value is + 1

        // months
        setMonthNames(Month.values()*.getDisplayName(TextStyle.FULL, locale))

        // words (use your translation backend here)
        setWeek("Woche")
        setToday("Heute")
        setCancel("Abbrechen")
    })
    addValueChangeListener{
        Notification.show(it.value.toString())
    }
}