推荐回答(5个)
对于任意2个日期比如:date_start=2006-10-1、date_end=2006-10-14 ,首先计算这连个日期之间的时间间隔(天数),然后分别对date_start 和date_end 取得它们下一个星期一的日期,这样就可以得到一个新的可以整除7的完整日期间隔(这个新的日期间隔已经把星期几的问题剔出掉了),换一种说法就是我们可以得到,这两个新的日期之间的周数,拿这个周数乘以5就是工作日期了(tmpWorkingDays)。但是这个日期并不是我们所要的日期,接下来我们要做的就是计算date_start,date_end这两个日期对于根据它们所产生的新的日期之间的时间偏移量,date_start的偏移量(date_start_change)是需要加的,而date_end的这个偏移量(date_end_change)是需要减去的。 最后我们只要用tmpWorkingDays+date_start_change-date_end_change就是我们所要求的实际工作日了。以下是所有实现代码(两个日期跨年也没有问题)。
package com.date.utlit;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
/**
* 计算任意2个日期内的工作日(没有考虑到国定假日)
* @author user
*
*/
public class DateCal {
/**
* @param args
*/
public static void main(String[] args) {
try {
String strDateStart = "2006-10-1";
String strDateEnd = "2006-10-14";
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date date_start = sdf.parse(strDateStart);
Date date_end = sdf.parse(strDateEnd);
DateCal app = new DateCal();
Calendar cal_start = Calendar.getInstance();
Calendar cal_end = Calendar.getInstance();
cal_start.setTime(date_start);
cal_end.setTime(date_end);
System.out.println("星期-->" + app.getChineseWeek(cal_start)
+ " 日期-->" + cal_start.get(Calendar.YEAR) + "-"
+ (cal_start.get(Calendar.MONTH) + 1) + "-"
+ cal_start.get(Calendar.DAY_OF_MONTH));
System.out.println("星期-->" + app.getChineseWeek(cal_end) + " 日期-->"
+ cal_end.get(Calendar.YEAR) + "-"
+ (cal_end.get(Calendar.MONTH) + 1) + "-"
+ cal_end.get(Calendar.DAY_OF_MONTH));
System.out.println("工作日为-->"
+ app.getWorkingDay(cal_start, cal_end));
System.out.println("休息日-->"+app.getHolidays(cal_start, cal_end));
} catch (Exception e) {
// TODO: handle exception
}
}
public int getDaysBetween(java.util.Calendar d1, java.util.Calendar d2) {
if (d1.after(d2)) { // swap dates so that d1 is start and d2 is end
java.util.Calendar swap = d1;
d1 = d2;
d2 = swap;
}
int days = d2.get(java.util.Calendar.DAY_OF_YEAR)
- d1.get(java.util.Calendar.DAY_OF_YEAR);
int y2 = d2.get(java.util.Calendar.YEAR);
if (d1.get(java.util.Calendar.YEAR) != y2) {
d1 = (java.util.Calendar) d1.clone();
do {
days += d1.getActualMaximum(java.util.Calendar.DAY_OF_YEAR);
d1.add(java.util.Calendar.YEAR, 1);
} while (d1.get(java.util.Calendar.YEAR) != y2);
}
return days;
}
/**
* 计算2个日期之间的相隔天数
* @param d1
* @param d2
* @return
*/
public int getWorkingDay(java.util.Calendar d1, java.util.Calendar d2) {
int result = -1;
if (d1.after(d2)) { // swap dates so that d1 is start and d2 is end
java.util.Calendar swap = d1;
d1 = d2;
d2 = swap;
}
int betweendays = getDaysBetween(d1, d2);
int charge_date = 0;
int charge_start_date = 0;//开始日期的日期偏移量
int charge_end_date = 0;//结束日期的日期偏移量
// 日期不在同一个日期内
int stmp;
int etmp;
stmp = 7 - d1.get(Calendar.DAY_OF_WEEK);
etmp = 7 - d2.get(Calendar.DAY_OF_WEEK);
if (stmp != 0 && stmp != 6) {// 开始日期为星期六和星期日时偏移量为0
charge_start_date = stmp - 1;
}
if (etmp != 0 && etmp != 6) {// 结束日期为星期六和星期日时偏移量为0
charge_end_date = etmp - 1;
}
// }
result = (getDaysBetween(this.getNextMonday(d1), this.getNextMonday(d2)) / 7)
* 5 + charge_start_date - charge_end_date;
//System.out.println("charge_start_date>" + charge_start_date);
//System.out.println("charge_end_date>" + charge_end_date);
//System.out.println("between day is-->" + betweendays);
return result;
}
public String getChineseWeek(Calendar date) {
final String dayNames[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五",
"星期六" };
int dayOfWeek = date.get(Calendar.DAY_OF_WEEK);
// System.out.println(dayNames[dayOfWeek - 1]);
return dayNames[dayOfWeek - 1];
}
/**
* 获得日期的下一个星期一的日期
*
* @param date
* @return
*/
public Calendar getNextMonday(Calendar date) {
Calendar result = null;
result = date;
do {
result = (Calendar) result.clone();
result.add(Calendar.DATE, 1);
} while (result.get(Calendar.DAY_OF_WEEK) != 2);
return result;
}
/**
*
* @param d1
* @param d2
* @return
*/
public int getHolidays(Calendar d1,Calendar d2){
return this.getDaysBetween(d1, d2)-this.getWorkingDay(d1, d2);
}
}
用存储过程吧。。
create proc proc1
@BD datetime,@ED datetime
as
Begin
declare @DD datetime
if @BD<=@ED
begin
if datediff(mm,@BD,@ED)>0
begin
while @BD<@ED
begin
set @DD=cast(convert(varchar(7),dateadd(mm,1,@BD),120)+'-01' as datetime)-1
if @DD>@ED
set @DD=@ED
if datediff(dd,@BD,@DD)>15
begin
print convert(varchar(7),@BD,120)+' 1'
end
else
begin
print convert(varchar(7),@BD,120)+' 0.5'
end
set @BD=@DD+1
end
end
end
End
测试成功~~
执行: exec proc1 '2008-01-05','2009-03-06'
很简单。。。。把>15那里换个方法就可以了。。
if datediff(dd,@BD,@DD)>15 这个条件更换为:
if datediff(dd,@BD,@DD)>datepart(dd,@DD)/2
没用视图,你转换下
create table my( years char(4),months int ,amount varchar(3))
declare @x varchar(15),@y varchar(15),@z varchar(15)
declare @f_m int,@e_m int
set @x='2006年2月1日'
set @y='2006年7月13日'
set @x=Replace(replace(REPLACE(@x,'年','-'),'月','-'),'日','')
set @y=Replace(replace(REPLACE(@y,'年','-'),'月','-'),'日','')
set @f_m=MONTH(@x)
set @e_m=MONTH(@y)
declare @i int,@f_d int,@e_d int,@d int
set @f_d=DAY(@x)
set @i=@f_m
while @i<=@e_m
begin
if @i=@e_m
set @z=@y
else
set @z=cast(year(@x)as varchar(4))+'-'+cast(@i+1 as varchar(2))+'-'+'1'
set @d=DATEDIFF(dd,@x,@z)
if @d>=15
insert into my select YEAR(@x) as years,@i as months,'1' as amount
else
insert into my select YEAR(@x) as years,@i as months,'0.5' as amount
set @x=@z
set @i=@i+1
end
select * from my
drop table my
问题表述不清楚,回答的人也是风牛马不相及,
表述清楚点,我可以给你解决.
这个好找 到百度上搜索 廖阅鹏催眠音乐 那网站里面就有
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