java时间间隔

た入场券 2023-10-05 23:40 55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;
        }
    
    
    }