原始需求:
某個員工提交xxxxx申請,需要領導審批,領導收到待辦通知。
問:領導從收到審批待辦開始,到執行審批操作,用了多少分鐘?(有效工作時長)
類似問題:你開發某個功能,從xx開始,到xx做好發佈,一共用了多少有效工作時長?
那何爲有效工作時長?
答:就是按實際上班時間嘛,比如上午幾點上班,幾點開始午休,下午幾點上班,幾點下班?公司是否是雙休?。。。。。之類的
參數舉例:
1.每天上班時間,如:
A、不定義上班時間
B、上班時間00:00到24:00 (其實就是A)
C、上班時間09:00到17:00
D、上班時間09:00到12:00;14:00到17:00 (有午休)
E、上班時間09:00到12:00;14:00到17:00 (其實就是D)
public static List<Map<String, String>> getOnWorkTimes() {
List<Map<String, String>> onWorks = new ArrayList<Map<String, String>>(2);
// 上班時間08:30-12:00,13:00-17:30
Map<String, String> work1 = new HashMap<String, String>(2);
Map<String, String> work2 = new HashMap<String, String>(2);
work1.put("begin", "08:30:00");
work1.put("end", "12:00:00");
work2.put("begin", "13:00:00");
work2.put("end", "17:30:00");
onWorks.add(work1);
onWorks.add(work2);
return onWorks;
}
2.是否排除週末,如:
A、是
B、否
定義一個方法,大概是長這樣:
看似簡單,其實情況複雜:
一、同一天
1.就是同一天(這裏也好多情況。。。。。。。自己領悟)
2.排除週末:週五到週六這種
3.排除週末:週六到下週一這種
二、跨天
三、多天
多天只需要取前後2天按上面的一、二處理,中間的每天都是完整小時
上代碼吧:(2個java文件,main方法測試效果)
A.工具類:MyUtil.java ,實現一些通用的方法,比如必要的日期格式化等:
package com.solar.oa.card.hikvision.util;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StringUtils;
/**
* @ClassName: MyUtil.java
* @Description: TODO
* @date 2021年1月14日 下午9:03:31
* @author yqwang
*/
public class MyUtil {
public static String PATTERN_HH_MM_SS = "HH:mm:ss";
public static String PATTERN_DEFAULT = "yyyy-MM-dd";
public static String PATTERN_FULL = "yyyy-MM-dd HH:mm:ss";
/**
* 相差毫秒數
* "10:00:00", "10:01:00", "HH:mm:ss" -->6000
* @return end-begin
*/
public static long diffMilliseconds(String begin, String end, String pattern) {
Date b = string2Date(begin, pattern);
Date e = string2Date(end, pattern);
if(b==null || e==null){
return 0;
}
return e.getTime() - b.getTime();
}
/**日期格式化*/
public static Date formatDate(Date date, String... pattern) {
try {
if (date == null) {
return null;
}
SimpleDateFormat formatter = null;
if (pattern != null && pattern.length > 0) {
formatter = new SimpleDateFormat(pattern[0].toString());
} else {
formatter = new SimpleDateFormat(PATTERN_DEFAULT);
}
return formatter.parse(formatter.format(date));
} catch (Exception e) {
return null;
}
}
/**字符串轉日期*/
public static Date string2Date(String dateStr, String... pattern) {
if (StringUtils.isEmpty(dateStr)) {
return null;
}
try {
SimpleDateFormat formatter = null;
if (pattern != null && pattern.length > 0) {
formatter = new SimpleDateFormat(pattern[0].toString());
} else {
formatter = new SimpleDateFormat(PATTERN_DEFAULT);
}
return formatter.parse(dateStr);
} catch (Exception e) {
return null;
}
}
/**日期轉字符串*/
public static String date2String(Date date, String... pattern) {
if (date == null) {
return "";
}
SimpleDateFormat formatter = null;
if (pattern != null && pattern.length > 0) {
formatter = new SimpleDateFormat(pattern[0].toString());
} else {
formatter = new SimpleDateFormat(PATTERN_DEFAULT);
}
return formatter.format(date);
}
/**
* 獲取2個日期之間的日期列表
* @param fromDate
* @param toDate
* @param excludeWeekend 是否排除週末
*/
public static List<Date> getBetweenDates(String fromDateStr, String toDateStr, Boolean excludeWeekend) {
List<Date> stamps = new ArrayList<>();
Date fromDate = string2Date(fromDateStr);
Date toDate = string2Date(toDateStr);
while (fromDate.getTime() <= toDate.getTime()) {
// 需要排除週末,則非週末的日期才添加到集合
if (excludeWeekend) {
if (!isWeekend(fromDate)) {
stamps.add(fromDate);
}
} else {
stamps.add(fromDate);
}
fromDate = addDays(fromDate, 1);
}
if (stamps.size() == 0){
return stamps;
}
int days = stamps.size();
Date first = stamps.get(0),last = stamps.get(days-1);
//from和days.get(0)是同一天,則集合中的第一個元素刷一下
if(first.getTime() == string2Date(fromDateStr).getTime() ){
stamps.set(0, string2Date(fromDateStr, PATTERN_FULL));
}
//to和days.get(last)是同一天,則集合中的最後一個元素刷一下
if(last.getTime() == string2Date(toDateStr).getTime() ){
stamps.set(days-1, string2Date(toDateStr, PATTERN_FULL));
}
return stamps;
}
/**
* 某個時間加幾天
* @param date 某個時間基礎
* @param months 加的天份數(負數爲減)
* @return
*/
public static Date addDays(Date date, Integer days) {
Calendar calendar = Calendar.getInstance(); // 得到日曆
calendar.setTime(date);// 把當前時間賦給日曆
calendar.add(Calendar.DATE, days); // 天加減
return calendar.getTime(); // 加減後的時間
}
/**是否週末*/
public static Boolean isWeekend(Date date) {
Calendar cal = Calendar.getInstance();
cal.setTime(date);
int i = cal.get(Calendar.DAY_OF_WEEK);
return i == 1 || i == 7;// 週日週六
}
/**獲取某個時間之後的有效時長*/
public static long getAfterHHMMMills(List<Map<String, String>> onWorks, String hhmm){
long resMills = 0;
long tsMills = 0;
if(CollectionUtils.isEmpty(onWorks)){
tsMills = diffMilliseconds(hhmm,"24:00:00",PATTERN_HH_MM_SS);
System.out.println(String.format("[%s,24:00:00]有%s分鐘",hhmm,tsMills/1000/60));
return tsMills;
}
for (Map<String, String> work : onWorks) {
tsMills = 0;
// 07:20與08:30-12:00
long millTemp = diffMilliseconds(hhmm, work.get("begin"), PATTERN_HH_MM_SS);
long millTemp2 = diffMilliseconds(hhmm, work.get("end"), PATTERN_HH_MM_SS);
//1提前2未到3之間
if (millTemp > 0){
System.out.print(String.format("%s < [%s,%s]", hhmm,work.get("begin"),work.get("end")));
tsMills += diffMilliseconds(work.get("begin"), work.get("end"), PATTERN_HH_MM_SS);
}else if(millTemp2 < 0){
System.out.print(String.format("%s > [%s,%s]", hhmm,work.get("begin"),work.get("end")));
}else{
System.out.print(String.format("%s in [%s,%s]", hhmm,work.get("begin"),work.get("end")));
tsMills += millTemp2;
}
resMills += tsMills;
System.out.println(String.format("之後有%s分鐘", tsMills/1000/60));
}
return resMills;
}
/**獲取某個時間之前的有效時長*/
public static long getBeforeHHMMMills(List<Map<String, String>> onWorks, String hhmm){
long resMills = 0;
long tsMills = 0;
if(CollectionUtils.isEmpty(onWorks)){
tsMills = diffMilliseconds("00:00:00", hhmm, PATTERN_HH_MM_SS);
System.out.println(String.format("[00:00:00,%s]有%s分鐘",hhmm,tsMills/1000/60));
return tsMills;
}
for (Map<String, String> work : onWorks) {
tsMills = 0;
// 07:20與08:30-12:00
long millTemp = diffMilliseconds(hhmm, work.get("begin"), PATTERN_HH_MM_SS);
long millTemp2 = diffMilliseconds(hhmm, work.get("end"), PATTERN_HH_MM_SS);
//1提前2未到3之間
if (millTemp > 0){
System.out.print(String.format("%s < [%s,%s]", hhmm,work.get("begin"),work.get("end")));
}else if(millTemp2 < 0){
System.out.print(String.format("%s > [%s,%s]", hhmm,work.get("begin"),work.get("end")));
tsMills += diffMilliseconds(work.get("begin"), work.get("end"), PATTERN_HH_MM_SS);
}else{
System.out.print(String.format("%s in [%s,%s]", hhmm,work.get("begin"),work.get("end")));
tsMills += (-millTemp);
}
resMills += tsMills;
System.out.println(String.format("之前有%s分鐘", tsMills/1000/60));
}
return resMills;
}
/**
* 毫秒數轉換爲日時分秒,
* @param ms
* @return
*/
public static String formatResult(long ms){
Integer ss = 1000;
Integer mi = ss * 60;
Integer hh = mi * 60;
Integer dd = hh * 24;
Long day = ms / dd;
Long hour = (ms - day * dd) / hh;
Long minute = (ms - day * dd - hour * hh) / mi;
Long second = (ms - day * dd - hour * hh - minute * mi) / ss;
Long milliSecond = ms - day * dd - hour * hh - minute * mi - second * ss;
StringBuffer sb = new StringBuffer();
if(day > 0) {
sb.append(day+"天");
}
if(hour > 0) {
sb.append(hour+"小時");
}
if(minute > 0) {
sb.append(minute+"分");
}
if(second > 0) {
sb.append(second+"秒");
}
if(milliSecond > 0) {
sb.append(milliSecond+"毫秒");
}
return sb.toString();
}
}
B.具體測試main測試:MyTest.ava,一共4個方法,實際計算就是第一個方法millsDiffExcluding(x,x,x,x)
MyTest.java的完整內容:
package com.solar.oa.card.hikvision.util;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.junit.Test;
import org.springframework.util.CollectionUtils;
import org.springframework.util.StopWatch;
/**
* @ClassName: MyTest.java
* @Description: TODO
* @date 2021年1月14日 下午9:04:44
* @author yqwang
*/
public class MyTest extends MyUtil{//爲了方便用工具,我就extends了
/**
* 獲取開始時間至結束時間期間的有效工作時長(精確到毫秒)
*
* @Title:minuteDiffExcluding
* @Description: TODO
* @date 2021年1月8日 下午9:20:32
* @author yqwang
* @param from
* @param to
* @param exWeek
* 是否排除週末
* @param onWorks
* 上班時間可以定義 比如 上午 08:30 - 12:00 下午 13:00 - 17:30
* @return
*/
public static long millsDiffExcluding(String from, String to, Boolean exWeek, List<Map<String, String>> onWorks) {
long resMills = 0;// 用於最終返回(毫秒數)
// A.沒有定義上班時間 且 不排除週末===>end - begin
if(CollectionUtils.isEmpty(onWorks) && !exWeek){
resMills = diffMilliseconds(from,to, PATTERN_FULL);
return resMills;
}
// B.起止時間所包含的日期(有效日期) (第一天和最後一天帶有時分秒)
List<Date> dates = getBetweenDates(from, to, exWeek);
int days = dates.size();
if(days == 0){
return 0;
}
System.out.println(String.format("一共%s天", days));
System.out.println("範圍內有效的時間列表:");
for (Date date : dates) {
System.out.println(date2String(date, PATTERN_FULL));
}
Date first = dates.get(0),last = dates.get(days-1);
//如果一共就1天,那就3種情況,1:from和to是同一天,2:first和from一樣,3:last和to一樣
// C.1天 一天時,時間需要處理一下,first和last的值 doing.............. 比如要排除 週末時,1月8號10點 到 1月10號9點 or 1月10號9點到1月11號10點。。。
if(days == 1){
System.out.println("同一天!");
if(string2Date(from).getTime() == string2Date(to).getTime()){//同一天
first = string2Date(from, PATTERN_FULL);
last = string2Date(to, PATTERN_FULL);
long s = getAfterHHMMMills(onWorks, date2String(first,PATTERN_HH_MM_SS));
System.out.println("<相減>");
long e = getAfterHHMMMills(onWorks, date2String(last,PATTERN_HH_MM_SS));
resMills+= (s-e);
}else if(first.getTime() == string2Date(from, PATTERN_FULL).getTime()){//如:週五到週六
last = null;
resMills+= getAfterHHMMMills(onWorks, date2String(first,PATTERN_HH_MM_SS));
}else{//如:週六到下週一
first = null;
resMills+= getBeforeHHMMMills(onWorks, date2String(last,PATTERN_HH_MM_SS));
}
}else{
//D.跨天(包含了2天及以上)
resMills+=getAfterHHMMMills(onWorks, date2String(first,PATTERN_HH_MM_SS));
resMills+=getBeforeHHMMMills(onWorks, date2String(last,PATTERN_HH_MM_SS));
}
// E.2天以上:(days-2)*一天的有效值
if (days > 2) {
// 每個整天的有效毫秒數
long allDayMills = 0;
if (CollectionUtils.isEmpty(onWorks)) {
allDayMills = 24*60*60*1000;
} else {
for (Map<String, String> work : onWorks) {
allDayMills += diffMilliseconds(work.get("begin"), work.get("end"), PATTERN_HH_MM_SS);
}
}
resMills += (days-2)*allDayMills;
System.out.println(String.format("中間%s天,每天%s分,共%s分", days-2,allDayMills/1000/60,(days-2)*allDayMills/1000/60));
}
return resMills;
}
/** 定義上班時間 */
public static List<Map<String, String>> getOnWorkTimes() {
List<Map<String, String>> onWorks = new ArrayList<Map<String, String>>(2);
// 上班時間08:30-12:00,13:00-17:30
Map<String, String> work1 = new HashMap<String, String>(2);
Map<String, String> work2 = new HashMap<String, String>(2);
work1.put("begin", "08:30:00");
work1.put("end", "12:00:00");
work2.put("begin", "13:00:00");
work2.put("end", "17:30:00");
onWorks.add(work1);
onWorks.add(work2);
return onWorks;
}
// 有效時長計算
@Test
public void testEffTime(){
getAfterHHMMMills(null, "07:30:00");
getAfterHHMMMills(getOnWorkTimes(), "07:30:00");
getAfterHHMMMills(getOnWorkTimes(), "09:30:00");
getAfterHHMMMills(getOnWorkTimes(), "12:30:00");
getAfterHHMMMills(getOnWorkTimes(), "14:30:00");
getAfterHHMMMills(getOnWorkTimes(), "18:30:00");
getBeforeHHMMMills(null, "07:30:00");
getBeforeHHMMMills(getOnWorkTimes(), "07:30:00");
getBeforeHHMMMills(getOnWorkTimes(), "09:30:00");
getBeforeHHMMMills(getOnWorkTimes(), "12:30:00");
getBeforeHHMMMills(getOnWorkTimes(), "14:30:00");
getBeforeHHMMMills(getOnWorkTimes(), "18:30:00");
}
/*
* 獲取開始時間至結束時間期間的有效工作時長(精確到分鐘)
* 需求 1. 上下班時間可以定義 默認 上午 08:30 - 12:00 休息一小時 下午 13:00 - 17:30
* 2. 可根據參數判斷是否排除週末
*/
public static void main(String[] args) {
StopWatch stopWatch = new StopWatch();
stopWatch.start();
String from = "2021-01-15 09:02:00",to = "2021-01-18 15:22:00";
List<Map<String, String>> onWorks = new ArrayList<>();
Boolean exWeek=false;
System.out.println(String.format("========================================沒有定義上班時間,不排除週末:%s,%s",from,to));
long mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
//---------------------
from = "2021-01-15 06:00:00";
to = "2021-01-15 07:00:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 06:00:00";
to = "2021-01-15 09:00:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 06:00:00";
to = "2021-01-15 12:30:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 06:00:00";
to = "2021-01-15 14:30:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 06:00:00";
to = "2021-01-15 18:30:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 18:00:00";
to = "2021-01-15 18:30:00";
System.out.println(String.format("========================================同一天,不排除週末:%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = false;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
//---------------------
from = "2021-01-15 09:00:00";
to = "2021-01-16 15:00:00";
System.out.println(String.format("========================================週五到週六,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-16 09:00:00";
to = "2021-01-18 15:00:00";
System.out.println(String.format("========================================週六到下週一,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-16 09:00:00";
to = "2021-01-19 15:00:00";
System.out.println(String.format("========================================週六到下週二,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-14 09:00:00";
to = "2021-01-15 15:00:00";
System.out.println(String.format("========================================2天,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2021-01-15 09:00:00";
to = "2021-01-22 15:00:00";
System.out.println(String.format("========================================週五到下週五,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
from = "2020-01-15 09:00:00";
to = "2021-01-22 15:00:00";
System.out.println(String.format("========================================跨年,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
/*// 一萬次跨年計算 (這裏如果要測試,那就請把工具類和當前文件的System.out.print給註釋掉,否則由於需要輸出,會非常影響測試!!)
for(int i = 0;i<10000;i++){
from = "2020-01-15 09:00:00";
to = "2021-01-22 15:00:00";
System.out.println(String.format("========================================跨年,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
}*/
stopWatch.stop();
System.out.println(String.format("計算耗時:%s", stopWatch.getTotalTimeMillis()));
}
}
允許MyTest.java的main()方法,效果如下:
========================================沒有定義上班時間,不排除週末:2021-01-15 09:02:00,2021-01-18 15:22:00
有效工作時長:3天6小時20分
有效工作時長:4700分鐘
========================================同一天,不排除週末:2021-01-15 06:00:00,2021-01-15 07:00:00
一共1天
範圍內有效的時間列表:
2021-01-15 07:00:00
同一天!
06:00:00 < [08:30:00,12:00:00]之後有210分鐘
06:00:00 < [13:00:00,17:30:00]之後有270分鐘
<相減>
07:00:00 < [08:30:00,12:00:00]之後有210分鐘
07:00:00 < [13:00:00,17:30:00]之後有270分鐘
有效工作時長:
有效工作時長:0分鐘
========================================同一天,不排除週末:2021-01-15 06:00:00,2021-01-15 09:00:00
一共1天
範圍內有效的時間列表:
2021-01-15 09:00:00
同一天!
06:00:00 < [08:30:00,12:00:00]之後有210分鐘
06:00:00 < [13:00:00,17:30:00]之後有270分鐘
<相減>
09:00:00 in [08:30:00,12:00:00]之後有180分鐘
09:00:00 < [13:00:00,17:30:00]之後有270分鐘
有效工作時長:30分
有效工作時長:30分鐘
========================================同一天,不排除週末:2021-01-15 06:00:00,2021-01-15 12:30:00
一共1天
範圍內有效的時間列表:
2021-01-15 12:30:00
同一天!
06:00:00 < [08:30:00,12:00:00]之後有210分鐘
06:00:00 < [13:00:00,17:30:00]之後有270分鐘
<相減>
12:30:00 > [08:30:00,12:00:00]之後有0分鐘
12:30:00 < [13:00:00,17:30:00]之後有270分鐘
有效工作時長:3小時30分
有效工作時長:210分鐘
========================================同一天,不排除週末:2021-01-15 06:00:00,2021-01-15 14:30:00
一共1天
範圍內有效的時間列表:
2021-01-15 14:30:00
同一天!
06:00:00 < [08:30:00,12:00:00]之後有210分鐘
06:00:00 < [13:00:00,17:30:00]之後有270分鐘
<相減>
14:30:00 > [08:30:00,12:00:00]之後有0分鐘
14:30:00 in [13:00:00,17:30:00]之後有180分鐘
有效工作時長:5小時
有效工作時長:300分鐘
========================================同一天,不排除週末:2021-01-15 06:00:00,2021-01-15 18:30:00
一共1天
範圍內有效的時間列表:
2021-01-15 18:30:00
同一天!
06:00:00 < [08:30:00,12:00:00]之後有210分鐘
06:00:00 < [13:00:00,17:30:00]之後有270分鐘
<相減>
18:30:00 > [08:30:00,12:00:00]之後有0分鐘
18:30:00 > [13:00:00,17:30:00]之後有0分鐘
有效工作時長:8小時
有效工作時長:480分鐘
========================================同一天,不排除週末:2021-01-15 18:00:00,2021-01-15 18:30:00
一共1天
範圍內有效的時間列表:
2021-01-15 18:30:00
同一天!
18:00:00 > [08:30:00,12:00:00]之後有0分鐘
18:00:00 > [13:00:00,17:30:00]之後有0分鐘
<相減>
18:30:00 > [08:30:00,12:00:00]之後有0分鐘
18:30:00 > [13:00:00,17:30:00]之後有0分鐘
有效工作時長:
有效工作時長:0分鐘
========================================週五到週六,排除週末2021-01-15 09:00:00,2021-01-16 15:00:00
一共1天
範圍內有效的時間列表:
2021-01-15 09:00:00
同一天!
09:00:00 in [08:30:00,12:00:00]之後有180分鐘
09:00:00 < [13:00:00,17:30:00]之後有270分鐘
有效工作時長:7小時30分
有效工作時長:450分鐘
========================================週六到下週一,排除週末2021-01-16 09:00:00,2021-01-18 15:00:00
一共1天
範圍內有效的時間列表:
2021-01-18 15:00:00
同一天!
15:00:00 > [08:30:00,12:00:00]之前有210分鐘
15:00:00 in [13:00:00,17:30:00]之前有120分鐘
有效工作時長:5小時30分
有效工作時長:330分鐘
========================================週六到下週二,排除週末2021-01-16 09:00:00,2021-01-19 15:00:00
一共2天
範圍內有效的時間列表:
2021-01-18 00:00:00
2021-01-19 15:00:00
00:00:00 < [08:30:00,12:00:00]之後有210分鐘
00:00:00 < [13:00:00,17:30:00]之後有270分鐘
15:00:00 > [08:30:00,12:00:00]之前有210分鐘
15:00:00 in [13:00:00,17:30:00]之前有120分鐘
有效工作時長:13小時30分
有效工作時長:810分鐘
========================================2天,排除週末2021-01-14 09:00:00,2021-01-15 15:00:00
一共2天
範圍內有效的時間列表:
2021-01-14 09:00:00
2021-01-15 15:00:00
09:00:00 in [08:30:00,12:00:00]之後有180分鐘
09:00:00 < [13:00:00,17:30:00]之後有270分鐘
15:00:00 > [08:30:00,12:00:00]之前有210分鐘
15:00:00 in [13:00:00,17:30:00]之前有120分鐘
有效工作時長:13小時
有效工作時長:780分鐘
========================================週五到下週五,排除週末2021-01-15 09:00:00,2021-01-22 15:00:00
一共6天
範圍內有效的時間列表:
2021-01-15 09:00:00
2021-01-18 00:00:00
2021-01-19 00:00:00
2021-01-20 00:00:00
2021-01-21 00:00:00
2021-01-22 15:00:00
09:00:00 in [08:30:00,12:00:00]之後有180分鐘
09:00:00 < [13:00:00,17:30:00]之後有270分鐘
15:00:00 > [08:30:00,12:00:00]之前有210分鐘
15:00:00 in [13:00:00,17:30:00]之前有120分鐘
中間4天,每天480分,共1920分
有效工作時長:1天21小時
有效工作時長:2700分鐘
======》》》計算耗時:77ms
我已經把我能想到的情況,都測試輸出了.........................
// 一萬次跨年計算 (這裏如果要測試,那就請把工具類和當前文件的System.out.print給註釋掉,否則由於需要輸出,會非常影響測試!!)
for(int i = 0;i<10000;i++){
from = "2020-01-15 09:00:00";
to = "2021-01-22 15:00:00";
System.out.println(String.format("========================================跨年,排除週末%s,%s",from,to));
onWorks = getOnWorkTimes();
exWeek = true;
mills = millsDiffExcluding(from, to, exWeek, onWorks);
System.out.println(String.format("有效工作時長:%s", formatResult(mills)));
System.out.println(String.format("有效工作時長:%s分鐘", mills/1000/60));
}
儘管計算10000次跨年的數據,也只需要2到3秒。
若各位看到問題,還請不吝賜教。當然如果能解決大家的問題,就最好了。