java时间间隔-蒲公英云

java时间间隔

た入场券 2023-10-05 23:40 118阅读 0赞

package com.yx.dwdb.manage.utils;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;
/**
 * @Auther: hsd
 * @Date: 2022/8/9 13:01
 * @Description:
 */
public class DateBetweenUtils {
    /*季度*/
    public static List<String> getQuarterBetween(String startTime, String endTime) {
        List<String> monthList = new ArrayList<>();
        Set<String> months = new HashSet<String>();
        try {
            ArrayList<String> result = new ArrayList<String>();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 格式化为年月
            Calendar min = Calendar.getInstance();
            Calendar max = Calendar.getInstance();
            min.setTime(sdf.parse(startTime));
            min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
            max.setTime(sdf.parse(endTime));
            max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
            Calendar curr = min;
            while (curr.before(max)) {
                result.add(sdf.format(curr.getTime()));
                curr.add(Calendar.MONTH, 1);
            }
            for (String string : result) {
                Date date = sdf.parse(string);
                DateFormat format1 = new SimpleDateFormat("MM");
                DateFormat format = new SimpleDateFormat("yyyy");
                String year = format.format(date);
                String month = format1.format(date);
                int parseInt = Integer.parseInt(month);
                if (parseInt >= 1 && parseInt <= 3) {
                    month = "1";
                } else if (parseInt >= 4 && parseInt <= 6) {
                    month = "2";
                } else if (parseInt >= 7 && parseInt <= 9) {
                    month = "3";
                } else {
                    month = "4";
                }
                months.add(year + "年" + month + "季度");
            }
            for (String mm:  months ) {
                monthList.add(mm);
            }
            Collections.sort(monthList);
            return monthList;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return monthList;
    }
    /*月份*/
   public static List<String> getMonthBetween(String startTime, String endTime) {
        List<String> monthList = new ArrayList<>();
        try {
            ArrayList<String> result = new ArrayList<String>();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 格式化为年月
            Calendar min = Calendar.getInstance();
            Calendar max = Calendar.getInstance();
            min.setTime(sdf.parse(startTime));
            min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
            max.setTime(sdf.parse(endTime));
            max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
            Calendar curr = min;
            while (curr.before(max)) {
                result.add(sdf.format(curr.getTime()));
                curr.add(Calendar.MONTH, 1);
            }
            for (String string : result) {
                Date date = sdf.parse(string);
                DateFormat format = new SimpleDateFormat("yyyy-MM");
                String month = format.format(date);
                monthList.add(month);
            }
            Collections.sort(monthList);
            return monthList;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return monthList;
    }
    public static List<String> getYearBetween(String startTime, String endTime) {
        List<String> yearList = new ArrayList<>();
        try {
            ArrayList<String> result = new ArrayList<String>();
            SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");// 格式化为年月
            Calendar min = Calendar.getInstance();
            Calendar max = Calendar.getInstance();
            min.setTime(sdf.parse(startTime));
            min.set(min.get(Calendar.YEAR), min.get(Calendar.MONTH), 1);
            max.setTime(sdf.parse(endTime));
            max.set(max.get(Calendar.YEAR), max.get(Calendar.MONTH), 2);
            Calendar curr = min;
            while (curr.before(max)) {
                result.add(sdf.format(curr.getTime()));
                curr.add(Calendar.MONTH, 1);
            }
            Set<String> years = new HashSet<String>();
            for (String string : result) {
                Date date = sdf.parse(string);
                DateFormat format = new SimpleDateFormat("yyyy");
                String yearS = format.format(date);
                years.add(yearS);
            }
            for (String yy:  years ) {
                yearList.add(yy);
            }
            Collections.sort(yearList);
            return yearList;
        } catch (Exception e) {
            e.printStackTrace();
        }
        return yearList;
    }
}