我在使用Joda Time的PeriodFormatter时遇到了麻烦.我想要一个人报告日,小时,分钟和秒钟,但我的尝试似乎在几周之内.我应该做些什么呢？
import org.joda.time.DateTime;
import org.joda.time.Period;
import org.joda.time.format.PeriodFormatter;
import org.joda.time.format.PeriodFormatterBuilder;
public class Problems {
public static void main(String[] args) {
PeriodFormatter formatter = new PeriodFormatterBuilder()
.printZeroNever()
.appendDays()
.appendSuffix(" day"," days")
.appendSeparator(",")
.appendHours()
.appendSuffix(" hour"," hours")
.appendSeparator(",")
.appendMinutes()
.appendSuffix(" minute"," minutes")
.appendSeparator(",")
.appendSeconds()
.appendSuffix(" second"," seconds")
.toFormatter();
DateTime now = new DateTime();
DateTime justUnderAWeekAgo = now.minusDays(7).plusMinutes(1);
DateTime justOverAWeekAgo = now.minusDays(7).minusMinutes(1);
System.out.println(now);
System.out.println(justUnderAWeekAgo);
System.out.println(justOverAWeekAgo);
// I am happy with the following:
System.out.println(
formatter.print(new Period(justUnderAWeekAgo,now)));
// But not with this (outputs "1 minute" but I want "7 days,1 minute"):
System.out.println(
formatter.print(new Period(justOverAWeekAgo,now)));
}
}
编辑：我想我可以看到为什么这不起作用 – 即格式化程序只打印Period的各种值,并且由于Periods存储了一个值数周,我的问题期间的天数值确实为0.但我仍然需要这样做的好方法……
解决方法
在您的情况下,问题是您不要求您的PeriodFormatter显示周.
两种可能性：
PeriodFormatter formatter = new PeriodFormatterBuilder()
.printZeroNever()
.appendWeeks()
.appendSuffix(" week"," weeks")
.appendSeparator(",")
.appendDays()
.appendSuffix(" day"," days")
.appendSeparator(",")
.appendHours()
.appendSuffix(" hour"," hours")
.appendSeparator(",")
.appendMinutes()
.appendSuffix(" minute"," minutes")
.appendSeparator(",")
.appendSeconds()
.appendSuffix(" second"," seconds")
.toFormatter();
您的示例中的第二个输出将是：
1 week,1 minute
解决方案2：仅显示日期,因此您必须使用PeriodType.yearMonthDayTime()：
new Period(justUndeAWeekAgo,now,PeriodType.yearMonthDayTime());
使用第二个解决方案,您可以保持PeriodFormatter现在的状态.您的示例中的第二个输出将是：
7 days,1 minute
