计算时间间隔

首先

<dependencies>
    <dependency>
        <groupId>joda-time</groupId>
        <artifactId>joda-time</artifactId>
        <version>2.10.1</version>
    </dependency>
</dependencies>

其次

import org.joda.time.Interval;
import org.joda.time.Period;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

/**
 * @Author youzi
 * @ClassName TestDateUtil
 * startDate 开始时间
 * endDate 结束时间
 * dateFormat 时间格式(形如 yyyy-MM-dd)
 * @return 相差的月份数和天数 months 、 days
 * @throws ParseException
 * @Date 2022/6/22 14:02
 * @Description 计算两个时间差
 */
public class TestDateUtil {
    public static void main(String[] args) throws ParseException {

        DateFormat df = new SimpleDateFormat("yyyy-MM-dd");
        Date dateStart = df.parse("2022-03-04");
        Date dateEnd = df.parse("2022-06-03");


        if (dateStart.getTime() > dateEnd.getTime()) {
            Date temp = dateStart;
            dateStart = dateEnd;
            dateEnd = temp;
        }


        Calendar c = Calendar.getInstance();
        c.setTime(dateEnd);
        c.add(Calendar.DAY_OF_MONTH, 1);
        //这是明天
        dateEnd = c.getTime();

        Interval interval = new Interval(dateStart.getTime(), dateEnd.getTime());
        Period p = interval.toPeriod();
        Integer years = p.getYears();
        Integer months = p.getMonths();
        Integer weeks = p.getWeeks();
        Integer days = p.getDays();

        Integer resultMonths = years * 12 + months;
        Integer resultDays = weeks * 7 + days;

        Map<String, Integer> result = new HashMap<>();
        result.put("months", resultMonths);
        result.put("days", resultDays);

        System.out.println(result);
    }

}

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