JodaTime 显示周数

Question

我正在尝试以下列格式显示两个日期时间之间的时间差：

? years, ? months, ? weeks, ? days, ? hours, ? minutes, ? seconds and ? milliseconds

我已经得到它显示几乎像这样，但它不显示星期。我试过使用 PeriodType.standard()，但省略了月份和年份。可以这样做吗？

这是我用来实现当前结果的代码：

private String getPeriodBetween(DateTime from, DateTime to, boolean showMilliseconds) {
    Period period;

    if (from.isAfter(to)) {
        period = new Period(to, from);
    } else {
        period = new Period(from, to);
    }

    PeriodFormatterBuilder builder = new PeriodFormatterBuilder().appendYears()
        .appendSuffix(" year, ", " years, ")
        .appendMonths()
        .appendSuffix(" month, ", " months, ")
        .appendWeeks()
        .appendSuffix(" week, ", " weeks, ")
        .appendDays()
        .appendSuffix(" day, ", " days, ")
        .appendHours()
        .appendSuffix(" hour, ", " hours, ")
        .appendMinutes()
        .appendSuffix(" minute, ", " minutes, ")
        .appendSeconds()
        .appendSuffix(" second, ", " seconds, ");

    if (showMilliseconds) {
        builder = builder.appendMillis().appendSuffix(" millisecond", " milliseconds");
    }

    return builder.toFormatter()
        .print(period.normalizedStandard(PeriodType.yearMonthDayTime()))
        .replaceAll("[,]\s*$", "")
        .replaceAll("(?:,\s*)([^,]+)$", " and ")
        .replaceAll("^(?![\s\S])", "No difference");
}

如果我使用 PeriodType.forFields(); 并指定包含所有必填字段的 DurationFieldType 数组，它会省略年和月。

Answer 1

想通了。问题是我最初使用 Duration 并将其转换为 Period。我曾尝试使用以下代码来修复它，但它并没有给我预期的结果。在我将其更改为 Period 之后，我可以使用 Period.forFields(); 指定我需要的所有字段，接受以下内容：

private static final DurationFieldType[] DURATION_FIELD_TYPES = { DurationFieldType.years(), DurationFieldType.months(), DurationFieldType.weeks(), DurationFieldType.days(), DurationFieldType.hours(), DurationFieldType.minutes(), DurationFieldType.seconds(), DurationFieldType.millis(), };

没关系，您甚至不需要规范化标准，因为它已经默认包含所有字段。现在想想，也有道理。这是我的完整工作代码供参考：

private String getDifference(DateTime from, DateTime to, boolean showMilliseconds) {
    Period period;

    if (from.isAfter(to)) {
        period = new Period(to, from);
    } else {
        period = new Period(from, to);
    }

    PeriodFormatterBuilder builder = new PeriodFormatterBuilder()
        .appendYears()
        .appendSuffix(" year, ", " years, ")
        .appendMonths()
        .appendSuffix(" month, ", " months, ")
        .appendWeeks()
        .appendSuffix(" week, ", " weeks, ")
        .appendDays()
        .appendSuffix(" day, ", " days, ")
        .appendHours()
        .appendSuffix(" hour, ", " hours, ")
        .appendMinutes()
        .appendSuffix(" minute, ", " minutes, ")
        .appendSeconds()
        .appendSuffix(" second, ", " seconds, ");

    if (showMilliseconds) {
        builder = builder.appendMillis().appendSuffix(" millisecond", " milliseconds");
    }

    return builder
        .toFormatter()
        .print(period)
        .replaceAll("[,]\s*$", "")
        .replaceAll("(?:,\s*)([^,]+)$", " and ")
        .replaceAll("^(?![\s\S])", "No difference");
}

JodaTime 显示周数

JodaTime show weeks in duration

java

datetime

duration

jodatime