[Original tool] Java background calculates the working day time difference between two dates

[Code implementation]: the time difference between working days between two dates (accurate to milliseconds)

 

[Code features ]:

 

1. Supports cross-year support.

 

2. Get the Time Difference Accurate to milliseconds.

 

3. National statutory holidays are not included (for example, only the list method is added =. = ).

 

Package COM. wednesday. tools. timetools; </P> <p> Import Java. text. parseexception; <br/> Import Java. text. simpledateformat; <br/> Import Java. util. calendar; <br/> Import Java. util. date; </P> <p> public class getworkdaytimemillisecond {</P> <p>/** <br/> * @ Param ARGs <br/> */<br/> Public static void main (string [] ARGs) {<br/> // todo auto-generated method stub <br/> getworkdaytimemillisecond A = new getworkdayti Memillisecond (); <br/> long B =. getworkdaytimeinmillis ("2010-05-17 8-00-00", "2010-05-18 9-00-00", "yyyy-mm-dd hh-mm-SS"); <br/> system. out. println (B); <br/>}< br/>/** <br/> * Get the workday time within two periods (only remove the weekend time between two dates, not Removed on statutory holidays) <br/> * @ Param start-start time. There are three overload methods available. Long, long, and date type <br/> * @ Param end-end time. There are three overload methods. You can input long, long, date type <br/> * @ return long type time difference object <br/> */<br/> Public long getworkdaytimeinm Illis (long start, long end) {<br/> // If the start time is later than the end time, switch the two <br/> If (Start> end) {<br/> long temp = start; <br/> Start = end; <br/> end = temp; <br/>}< br/> // obtain the calendar type object of the start time and end time based on the parameters. <br/> calendar sdate = calendar. getinstance (); <br/> calendar edate = calendar. getinstance (); <br/> sdate. settimeinmillis (start); <br/> edate. settimeinmillis (end); <br/> // if the two dates are in the same week and are not weekend dates, the time difference is returned directly, increasing execution efficiency <br/> If (sdate. get (calendar. Year) = edate. get (calendar. year) <br/> & sdate. get (calendar. week_of_year) = edate. get (calendar. week_of_year) <br/> & sdate. get (calendar. day_of_week )! = 1 & sdate. Get (calendar. day_of_week )! = 7 <br/> & edate. Get (calendar. day_of_week )! = 1 & edate. Get (calendar. day_of_week )! = 7) {<br/> return New Long (end-Start ); <br/>}< br/> // obtain the start date and end date of the next Monday. <br/> calendar snextm = getnextmonday (sdate ); <br/> calendar enextm = getnextmonday (edate); <br/> // obtain the actual number of days between the two Mondays <br/> int days = getdaysbetween (snextm, enextm ); <br/> // obtain the number of working days between the two Mondays (the number of days between the two Mondays is certainly 7, and the number of working days accounts for 5/7 of the total) <br/> int workdays = days/7*5; <br/> // get the Start Time Offset <br/> long scharge = 0; <br/> If (sdate. get (calendar. day_of_week )! = 1 & sdate. Get (calendar. day_of_week )! = 7) {<br/> // The offset is calculated only when the start time is not a weekend. <br/> scharge + = (7-sdate.get (calendar. day_of_week) * 24*3600000; <br/> scharge-= sdate. get (calendar. hour_of_day) * 3600000; <br/> scharge-= sdate. get (calendar. minute) * 60000; <br/> scharge-= sdate. get (calendar. second) * 1000; <br/> scharge-= sdate. get (calendar. millisecond); <br/>}< br/> // get the offset of the end time <br/> long echarge = 0; <br/> If (edate. get (calendar. day_of_week )! = 1 & edate. Get (calendar. day_of_week )! = 7) {<br/> // The offset is calculated only when the end time is not a weekend. <br/> echarge + = (7-edate.get (calendar. day_of_week) * 24*3600000; <br/> echarge-= edate. get (calendar. hour_of_day) * 3600000; <br/> echarge-= edate. get (calendar. minute) * 60000; <br/> echarge-= edate. get (calendar. second) * 1000; <br/> echarge-= edate. get (calendar. millisecond); <br/>}< br/> // calculate the final result, specifically, the Time offset of the start time plus the workdays, offset of the end time minus <br/> return workdays * 24*3600000 + scharge- Echarge; <br/>}< br/> Public long getworkdaytimeinmillis (long start, long end) {<br/> return getworkdaytimeinmillis (start. longvalue (), end. longvalue (); <br/>}< br/> Public long getworkdaytimeinmillis (date start, date end) {<br/> return getworkdaytimeinmillis (start. gettime (), end. gettime (); <br/>}< br/> Public long getworkdaytimeinmillis (string start, string end, string format) {<br/> simpledateformat SDF = new simpledateformat (format); <br/> date sdate; <br/> date edate; <br/> try {<br/> sdate = SDF. parse (start); <br/> edate = SDF. parse (end); <br/> return getworkdaytimeinmillis (sdate, edate); <br/>} catch (parseexception e) {<br/> E. printstacktrace (); <br/> return New Long (0); <br/>}< br/> private calendar getnextmonday (calendar Cal) {<br/> int addnum = 9-cal.get (calendar. day_of_week); <br/> If (AD Dnum = 8) addnum = 1; // Sunday condition <br/> Cal. add (calendar. date, addnum); <br/> return Cal; <br/>}< br/>/** <br/> * obtain the actual number of days between two dates, supports cross-year <br/> */<br/> Public int getdaysbetween (calendar start, calendar end) {<br/> If (start. after (end) {<br/> calendar swap = start; <br/> Start = end; <br/> end = swap; <br/>}< br/> int days = end. get (calendar. day_of_year)-start. get (calendar. day_of_year); <br/> int y2 = end. get (calendar. Year); <br/> If (start. Get (calendar. Year )! = Y2) {<br/> Start = (calendar) Start. clone (); <br/> do {<br/> days + = start. getactualmaximum (calendar. day_of_year); <br/> Start. add (calendar. year, 1); <br/>}while (start. get (calendar. year )! = Y2); <br/>}< br/> return days; <br/>}</P> <p >}< br/>