package test.albert.datetime;
import java.time.LocalDate;
import java.time.Month;
import java.time.format.DateTimeFormatter;
import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.extern.slf4j.Slf4j;
@Slf4j
public class TestDateTime {
private static final DateTimeFormatter FROMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd");
public static void main(String[] args) {
TestDateTime test = new TestDateTime();
DateRange today = test.getToday();
log.debug("Get today: {} ", today.toString());
DateRange yesterday = test.getYesterday();
log.debug("Get yesterday: {} ", yesterday.toString());
DateRange lastWeek = test.getLastWeek();
log.debug("Get last week: {} ", lastWeek.toString());
DateRange withinOneMonth = test.getWithinOneMonth();
log.debug("Get within one month: {} ", withinOneMonth.toString());
DateRange lastMonth = test.getLastMonth();
log.debug("Get last month: {} ", lastMonth.toString());
DateRange thisYear = test.getThisYear();
log.debug("Get this year: {} ", thisYear.toString());
DateRange lastYear = test.getLastYear();
log.debug("Get last year: {} ", lastYear.toString());
}
/**
* 計算起訖日期: 今天
*
* @return start/end date
*/
public DateRange getToday() {
LocalDate now = LocalDate.now();
DateRange dateRange = new DateRange(formatDate(now), formatDate(now));
return dateRange;
}
/**
* 計算起訖日期: 今天減去一天
*
* @return start/end date
*/
public DateRange getYesterday() {
LocalDate now = LocalDate.now();
LocalDate yesterday = now.minusDays(1);
DateRange dateRange = new DateRange(formatDate(yesterday), formatDate(yesterday));
return dateRange;
}
/**
* 計算起訖日期: 今天減去六天到今天
*
* @return start/end date
*/
public DateRange getLastWeek() {
LocalDate now = LocalDate.now();
LocalDate lastWeek = now.minusDays(6);
DateRange dateRange = new DateRange(formatDate(lastWeek), formatDate(now));
return dateRange;
}
/**
* 計算起訖日期: 今天減去一個月到今天
*
* @return start/end date
*/
public DateRange getWithinOneMonth() {
LocalDate now = LocalDate.now();
LocalDate lastMonth = now.minusMonths(1);
DateRange dateRange = new DateRange(formatDate(lastMonth), formatDate(now));
return dateRange;
}
/**
* 計算起訖日期: 上個月的第一天到上個月的最後一天
*
* @return start/end date
*/
public DateRange getLastMonth() {
LocalDate now = LocalDate.now();
LocalDate lastMonth = now.minusMonths(1);
DateRange dateRange = new DateRange(formatDate(lastMonth.withDayOfMonth(1)),
formatDate(lastMonth.withDayOfMonth(lastMonth.lengthOfMonth())));
return dateRange;
}
/**
* 計算起訖日期: 今年度的第一天到今天
*
* @return start/end date
*/
public DateRange getThisYear() {
LocalDate now = LocalDate.now();
LocalDate from = LocalDate.of(now.getYear(), Month.JANUARY, 1);
DateRange dateRange = new DateRange(formatDate(from), formatDate(now));
return dateRange;
}
/**
* 計算起訖日期: 去年度的第一天到去年度的最後一天
*
* @return start/end date
*/
public DateRange getLastYear() {
LocalDate now = LocalDate.now();
LocalDate from = LocalDate.of(now.getYear() - 1, Month.JANUARY, 1);
LocalDate to = LocalDate.of(now.getYear() - 1, Month.DECEMBER, 31);
DateRange dateRange = new DateRange(formatDate(from), formatDate(to));
return dateRange;
}
private String formatDate(LocalDate date) {
return date.format(FROMATTER);
}
@Data
@AllArgsConstructor
private static class DateRange {
private String from;
private String to;
}
}
Console
2018-05-09 11:27:31.661 - DEBUG- t.a.datetime.TestDateTime - Get today: TestDateTime.DateRange(from=2018-05-09, to=2018-05-09)
2018-05-09 11:27:31.664 - DEBUG- t.a.datetime.TestDateTime - Get yesterday: TestDateTime.DateRange(from=2018-05-08, to=2018-05-08)
2018-05-09 11:27:31.664 - DEBUG- t.a.datetime.TestDateTime - Get last week: TestDateTime.DateRange(from=2018-05-03, to=2018-05-09)
2018-05-09 11:27:31.664 - DEBUG- t.a.datetime.TestDateTime - Get within one month: TestDateTime.DateRange(from=2018-04-09, to=2018-05-09)
2018-05-09 11:27:31.665 - DEBUG- t.a.datetime.TestDateTime - Get last month: TestDateTime.DateRange(from=2018-04-01, to=2018-04-30)
2018-05-09 11:27:31.665 - DEBUG- t.a.datetime.TestDateTime - Get this year: TestDateTime.DateRange(from=2018-01-01, to=2018-05-09)
2018-05-09 11:27:31.665 - DEBUG- t.a.datetime.TestDateTime - Get last year: TestDateTime.DateRange(from=2017-01-01, to=2017-12-31)
