获取某年的所有周日期

实际项目中时间可能需要按周来计算，那么就需要知道某年度的所有周了

/*** 获取指定年的所有周* @param year* @return*/
public static List<Map<String, Object>> getWeekOfYear(int year) {List list = new ArrayList<>();// 获取当前日期属于第几周int weekNumOfYear = getWeekNumOfYear(new Date());//初始化，第一周至少四天,周天数占比WeekFields wfs = WeekFields.of(DayOfWeek.MONDAY, 4);//一年最后一天日期的LocalDate，如果该天获得的周数为1或52，那么该年就只有52周，否则就是53周//获取指定时间所在年的周数int num = LocalDate.of(year, 12, 31).get(wfs.weekOfWeekBasedYear());num = num == 1 ? 52 : num;// num控制周数for (int i = 1; i <= num; i++) {String days = getDay(year, i, DayOfWeek.MONDAY) + "," +getDay(year, i, DayOfWeek.TUESDAY) + "," +getDay(year, i, DayOfWeek.WEDNESDAY) + "," +getDay(year, i, DayOfWeek.THURSDAY) + "," +getDay(year, i, DayOfWeek.FRIDAY) + "," +getDay(year, i, DayOfWeek.SATURDAY) + "," +getDay(year, i, DayOfWeek.SUNDAY);String[] split = trim(days, ",").split(",");String start = split[0];String end = split[split.length - 1];days = start + "~" + end;System.out.println(2022 + "年,第" + i + "周，日期:" + days);
//            System.out.println(2022 + "week" + i + "(" + days + ")");HashMap<Object, Object> data = new HashMap<>();data.put("year", year);data.put("week", i);data.put("days", days);data.put("startDay", start);data.put("end", end);data.put("isCurrentWeek", 0);// 设置周数是否是当前周数if (weekNumOfYear == i) {data.put("isCurrentWeek", 1);}list.add(data);}return list;
}private static String getDay(Integer year, Integer num, DayOfWeek dayOfWeek) {//周数小于10在前面补个0String numStr = num < 10 ? "0" + String.valueOf(num) : String.valueOf(num);//2019-W01-01获取第一周的周一日期，2019-W02-07获取第二周的周日日期String weekDate = String.format("%s-W%s-%s", year, numStr, dayOfWeek.getValue());String date = LocalDate.parse(weekDate, DateTimeFormatter.ISO_WEEK_DATE).toString();String[] split = date.split("-");if (!split[0].equals(year.toString())) {//返回日期范围属于指定年return "";}date = split[1] + "-" + split[2];return date;
}/*** 去除首尾指定字符* @param str     字符串* @param element 指定字符* @return*/
public static String trim(String str, String element) {if (str == null || str.equals("")) return str;boolean beginIndexFlag = true;boolean endIndexFlag = true;do {int beginIndex = str.indexOf(element) == 0 ? 1 : 0;int endIndex = str.lastIndexOf(element) + 1 == str.length() ? str.lastIndexOf(element) : str.length();str = str.substring(beginIndex, endIndex);beginIndexFlag = (str.indexOf(element) == 0);endIndexFlag = (str.lastIndexOf(element) + 1 == str.length());} while (beginIndexFlag || endIndexFlag);return str;
}/*** 取得某天是一年中的多少周* @param date* @return*/
public static int getWeekNumOfYear(Date date) {Calendar c = new GregorianCalendar();c.setFirstDayOfWeek(Calendar.MONDAY);c.setMinimalDaysInFirstWeek(7);c.setTime(date);return c.get(Calendar.WEEK_OF_YEAR);
}

测试：

public static void main(String[] args) throws JSONException {List<Map<String, Object>> weekOfWeek = getWeekOfYear(2022);System.out.println(JSONUtils.serialize(weekOfWeek));
}

控制台打印输出结果：

2022年,第1周，日期:01-03~01-09
2022年,第2周，日期:01-10~01-16
2022年,第3周，日期:01-17~01-23
2022年,第4周，日期:01-24~01-30
2022年,第5周，日期:01-31~02-06
2022年,第6周，日期:02-07~02-13
2022年,第7周，日期:02-14~02-20
2022年,第8周，日期:02-21~02-27
2022年,第9周，日期:02-28~03-06
2022年,第10周，日期:03-07~03-13
2022年,第11周，日期:03-14~03-20
2022年,第12周，日期:03-21~03-27
2022年,第13周，日期:03-28~04-03
2022年,第14周，日期:04-04~04-10
2022年,第15周，日期:04-11~04-17
2022年,第16周，日期:04-18~04-24
2022年,第17周，日期:04-25~05-01
2022年,第18周，日期:05-02~05-08
2022年,第19周，日期:05-09~05-15
2022年,第20周，日期:05-16~05-22
2022年,第21周，日期:05-23~05-29
2022年,第22周，日期:05-30~06-05
2022年,第23周，日期:06-06~06-12
2022年,第24周，日期:06-13~06-19
2022年,第25周，日期:06-20~06-26
2022年,第26周，日期:06-27~07-03
2022年,第27周，日期:07-04~07-10
2022年,第28周，日期:07-11~07-17
2022年,第29周，日期:07-18~07-24
2022年,第30周，日期:07-25~07-31
2022年,第31周，日期:08-01~08-07
2022年,第32周，日期:08-08~08-14
2022年,第33周，日期:08-15~08-21
2022年,第34周，日期:08-22~08-28
2022年,第35周，日期:08-29~09-04
2022年,第36周，日期:09-05~09-11
2022年,第37周，日期:09-12~09-18
2022年,第38周，日期:09-19~09-25
2022年,第39周，日期:09-26~10-02
2022年,第40周，日期:10-03~10-09
2022年,第41周，日期:10-10~10-16
2022年,第42周，日期:10-17~10-23
2022年,第43周，日期:10-24~10-30
2022年,第44周，日期:10-31~11-06
2022年,第45周，日期:11-07~11-13
2022年,第46周，日期:11-14~11-20
2022年,第47周，日期:11-21~11-27
2022年,第48周，日期:11-28~12-04
2022年,第49周，日期:12-05~12-11
2022年,第50周，日期:12-12~12-18
2022年,第51周，日期:12-19~12-25
2022年,第52周，日期:12-26~12-31

实际上我们项目要的不是这种格式，我们重新格式化一下返回json数据

isCurrentWeek 表示当前周

[{"week": 1,"year": 2022,"startDay": "01-03","days": "01-03~01-09","end": "01-09","isCurrentWeek": 0},{"week": 2,"year": 2022,"startDay": "01-10","days": "01-10~01-16","end": "01-16","isCurrentWeek": 0},{"week": 3,"year": 2022,"startDay": "01-17","days": "01-17~01-23","end": "01-23","isCurrentWeek": 0},{"week": 4,"year": 2022,"startDay": "01-24","days": "01-24~01-30","end": "01-30","isCurrentWeek": 0},{"week": 5,"year": 2022,"startDay": "01-31","days": "01-31~02-06","end": "02-06","isCurrentWeek": 0},{"week": 6,"year": 2022,"startDay": "02-07","days": "02-07~02-13","end": "02-13","isCurrentWeek": 0},{"week": 7,"year": 2022,"startDay": "02-14","days": "02-14~02-20","end": "02-20","isCurrentWeek": 0},{"week": 8,"year": 2022,"startDay": "02-21","days": "02-21~02-27","end": "02-27","isCurrentWeek": 0},{"week": 9,"year": 2022,"startDay": "02-28","days": "02-28~03-06","end": "03-06","isCurrentWeek": 0},{"week": 10,"year": 2022,"startDay": "03-07","days": "03-07~03-13","end": "03-13","isCurrentWeek": 0},{"week": 11,"year": 2022,"startDay": "03-14","days": "03-14~03-20","end": "03-20","isCurrentWeek": 0},{"week": 12,"year": 2022,"startDay": "03-21","days": "03-21~03-27","end": "03-27","isCurrentWeek": 0},{"week": 13,"year": 2022,"startDay": "03-28","days": "03-28~04-03","end": "04-03","isCurrentWeek": 1},{"week": 14,"year": 2022,"startDay": "04-04","days": "04-04~04-10","end": "04-10","isCurrentWeek": 0},{"week": 15,"year": 2022,"startDay": "04-11","days": "04-11~04-17","end": "04-17","isCurrentWeek": 0},{"week": 16,"year": 2022,"startDay": "04-18","days": "04-18~04-24","end": "04-24","isCurrentWeek": 0},{"week": 17,"year": 2022,"startDay": "04-25","days": "04-25~05-01","end": "05-01","isCurrentWeek": 0},{"week": 18,"year": 2022,"startDay": "05-02","days": "05-02~05-08","end": "05-08","isCurrentWeek": 0},{"week": 19,"year": 2022,"startDay": "05-09","days": "05-09~05-15","end": "05-15","isCurrentWeek": 0},{"week": 20,"year": 2022,"startDay": "05-16","days": "05-16~05-22","end": "05-22","isCurrentWeek": 0},{"week": 21,"year": 2022,"startDay": "05-23","days": "05-23~05-29","end": "05-29","isCurrentWeek": 0},{"week": 22,"year": 2022,"startDay": "05-30","days": "05-30~06-05","end": "06-05","isCurrentWeek": 0},{"week": 23,"year": 2022,"startDay": "06-06","days": "06-06~06-12","end": "06-12","isCurrentWeek": 0},{"week": 24,"year": 2022,"startDay": "06-13","days": "06-13~06-19","end": "06-19","isCurrentWeek": 0},{"week": 25,"year": 2022,"startDay": "06-20","days": "06-20~06-26","end": "06-26","isCurrentWeek": 0},{"week": 26,"year": 2022,"startDay": "06-27","days": "06-27~07-03","end": "07-03","isCurrentWeek": 0},{"week": 27,"year": 2022,"startDay": "07-04","days": "07-04~07-10","end": "07-10","isCurrentWeek": 0},{"week": 28,"year": 2022,"startDay": "07-11","days": "07-11~07-17","end": "07-17","isCurrentWeek": 0},{"week": 29,"year": 2022,"startDay": "07-18","days": "07-18~07-24","end": "07-24","isCurrentWeek": 0},{"week": 30,"year": 2022,"startDay": "07-25","days": "07-25~07-31","end": "07-31","isCurrentWeek": 0},{"week": 31,"year": 2022,"startDay": "08-01","days": "08-01~08-07","end": "08-07","isCurrentWeek": 0},{"week": 32,"year": 2022,"startDay": "08-08","days": "08-08~08-14","end": "08-14","isCurrentWeek": 0},{"week": 33,"year": 2022,"startDay": "08-15","days": "08-15~08-21","end": "08-21","isCurrentWeek": 0},{"week": 34,"year": 2022,"startDay": "08-22","days": "08-22~08-28","end": "08-28","isCurrentWeek": 0},{"week": 35,"year": 2022,"startDay": "08-29","days": "08-29~09-04","end": "09-04","isCurrentWeek": 0},{"week": 36,"year": 2022,"startDay": "09-05","days": "09-05~09-11","end": "09-11","isCurrentWeek": 0},{"week": 37,"year": 2022,"startDay": "09-12","days": "09-12~09-18","end": "09-18","isCurrentWeek": 0},{"week": 38,"year": 2022,"startDay": "09-19","days": "09-19~09-25","end": "09-25","isCurrentWeek": 0},{"week": 39,"year": 2022,"startDay": "09-26","days": "09-26~10-02","end": "10-02","isCurrentWeek": 0},{"week": 40,"year": 2022,"startDay": "10-03","days": "10-03~10-09","end": "10-09","isCurrentWeek": 0},{"week": 41,"year": 2022,"startDay": "10-10","days": "10-10~10-16","end": "10-16","isCurrentWeek": 0},{"week": 42,"year": 2022,"startDay": "10-17","days": "10-17~10-23","end": "10-23","isCurrentWeek": 0},{"week": 43,"year": 2022,"startDay": "10-24","days": "10-24~10-30","end": "10-30","isCurrentWeek": 0},{"week": 44,"year": 2022,"startDay": "10-31","days": "10-31~11-06","end": "11-06","isCurrentWeek": 0},{"week": 45,"year": 2022,"startDay": "11-07","days": "11-07~11-13","end": "11-13","isCurrentWeek": 0},{"week": 46,"year": 2022,"startDay": "11-14","days": "11-14~11-20","end": "11-20","isCurrentWeek": 0},{"week": 47,"year": 2022,"startDay": "11-21","days": "11-21~11-27","end": "11-27","isCurrentWeek": 0},{"week": 48,"year": 2022,"startDay": "11-28","days": "11-28~12-04","end": "12-04","isCurrentWeek": 0},{"week": 49,"year": 2022,"startDay": "12-05","days": "12-05~12-11","end": "12-11","isCurrentWeek": 0},{"week": 50,"year": 2022,"startDay": "12-12","days": "12-12~12-18","end": "12-18","isCurrentWeek": 0},{"week": 51,"year": 2022,"startDay": "12-19","days": "12-19~12-25","end": "12-25","isCurrentWeek": 0},{"week": 52,"year": 2022,"startDay": "12-26","days": "12-26~12-31","end": "12-31","isCurrentWeek": 0}
]

获取某年的所有周日期相关推荐

某年中某周的开始与结束日期以及某月的开始结束
最近项目有个需求,获取某年中某一周的开始与结束日期,某年中某一个月的开始与结束日期. 1.获取某年中某一周的日期:一般来说,一年最多有53周,平年365天,即52周余一天,闰年366天,即52周余二天 ...
java获取一年的周数、单周开始时间与结束时间、一年所有周开始时间与结束时间、月开始时间与结束时间
java获取一年的周数.单周开始时间与结束时间.一年所有周开始时间与结束时间.月开始时间与结束时间 package com.frgk.produce.util;import org.springfra ...
php获取7天,php 获取未来七天的日期和星期
php获取未来七天的日期和星期代码 for($i=4;$i<8;$i++){ $dateArray[$i]=date('Y-m-d',strtotime(date('Y-m-d').'+'.$i ...
oracle中怎样获取一周的日期,Oracle如何获取某年每月第N周星期X的所有日期
Oracle如何获取某年每月第N周星期X的所有日期要求:列出2012年每月第二周星期二的日期两种理解: www.2cto.com 1.认为每周第一天为星期一(中国习惯),且需求为第二周周二(非第二 ...
java处理最后一周_Java获取某年某周的最后一天
package test; import java.text.SimpleDateFormat; import java.util.Calendar; /** * ClassName: LastDay ...
java 一周的第一天_Java获取某年某周的第一天
Java获取某年某周的第一天 1.设计源代码 FirstDayOfWeek.java: /** * @Title:FirstDayOfWeek.java * @Package:com.you.free ...
Java获取某年某周的第一天
Java获取某年某周的第一天 1.设计源码 FirstDayOfWeek.java: /*** @Title:FirstDayOfWeek.java* @Package:com.you.freemar ...
根据年份获取周次，根据周次获取日期范围，获取当前年份，周次列表信息。
在原文的基础上改的,适应我这边的需求,从周一开始到周日(姑且算个原创哈,原文链接在最下边). (1)根据年份获取周次 (2) 获取当前年份周次 (3) 根据选择周次获取日期时间范围谁有更简单的方法也 ...
js 获取某年的某天是第几周
/** 2 * 判断年份是否为润年 3 * 4 * @param {Number} year 5 */ 6 function isLeapYear(year) { 7 return (yea ...
c#日期转换周几_C#获取每个年,月,周的起始日期和结束日期的方法
这篇文章主要介绍了C#获取每个年,月,周的起始日期和结束日期的方法,涉及C#时间与日期基本操作技巧,具有一定参考借鉴价值,需要的朋友可以参考下本文实例讲述了C#获取每个年,月,周的起始日期和结束日期 ...

获取某年的所有周日期

获取某年的所有周日期相关推荐

最新文章

热门文章