Question

我试图以下列格式显示两个DateTime之间的时间差：

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

我显示它几乎就是这样，但它没有显示周。我尝试过使用PeriodType.standard（），但这省略了几个月和几年。有可能这样做吗？

以下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 $1")
        .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，则会忽略年份和月份。

Answer 1

搞清楚了。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(), };

<击>

没关系，您甚至不需要标准化标准，因为它默认包含所有字段。现在我考虑一下，这是有道理的。这是我完整的工作代码供参考：

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 $1") .replaceAll("^(?![\\s\\S])", "No difference"); }

JodaTime显示持续数周

1 个答案: