/**
* 日期加法
*
* @param txDate 日期格式"20150404"
* @param proi DAYS|加上几天|MONTHS|加上几月|YEARS|加上几年
* @param type 选择 DAYS||MONTHS||YEARS
* @return
*/
public static String plus(String txDate, int proi, String type) {
if (txDate != null) {
DateTime txDT = DateTime.parse(txDate, ISODateTimeFormat.basicDate());
if (type.toUpperCase().endsWith("DAYS")) {
return txDT.plusDays(proi).toString(ISODateTimeFormat.basicDate());
} else if (type.toUpperCase().endsWith("MONTHS")) {
return txDT.plusMonths(proi).toString(ISODateTimeFormat.basicDate());
} else if (type.toUpperCase().endsWith("YEARS")) {
return txDT.plusYears(proi).toString(ISODateTimeFormat.basicDate());
}
}
return txDate;
}
/**
* 求两个直接的日期差,月份.
*
* <p>*MSECONDS|*SECONDS|*MINUTES|*HOURS|*DAYS|*MONTHS|*YEARS
*
* @param tDate 日期格式"20150404"
* @param txDate 日期格式"20150404"
* @param type type 选择 DAYS||MONTHS||YEARS
* @return
*/
public static int diff(String tDate, String txDate, String type) {
if (txDate != null && tDate != null) {
DateTime txDT = DateTime.parse(txDate, ISODateTimeFormat.basicDate());
DateTime tDT = DateTime.parse(tDate, ISODateTimeFormat.basicDate());
if (type.toUpperCase().endsWith("DAYS")) {
return Days.daysBetween(txDT, tDT).getDays();
} else if (type.toUpperCase().endsWith("MONTHS")) {
return Months.monthsBetween(txDT, tDT).getMonths();
} else if (type.toUpperCase().endsWith("YEARS")) {
return Years.yearsBetween(txDT, tDT).getYears();
} else if (type.toUpperCase().endsWith("YEARS")) {
return Years.yearsBetween(txDT, tDT).getYears();
}
}
return 0;
}
/**
* @param when The instant
* @param locale The required locale
* @return The instant formatted as "yyyyMMdd" in the system timezone
*/
public static String formatCompactDateLocal(ReadableInstant when, Locale locale) {
if (when == null) {
return "";
}
return ISODateTimeFormat.basicDate()
.withZone(DateTimeZone.getDefault())
.withLocale(locale)
.print(when);
}
/**
* @param when The instant
* @return The instant formatted as "yyyyMMdd" in UTC
*/
public static String formatCompactDate(ReadableInstant when) {
if (when == null) {
return "";
}
return ISODateTimeFormat.basicDate().withZoneUTC().print(when);
}
/**
* date是 星期几
*
* @param date
* @return
*/
public static int week(String date) {
DateTime dateTime = DateTime.parse(date, ISODateTimeFormat.basicDate());
return dateTime.dayOfWeek().get();
}