计算员工在职时长
在只需要年份的情况下：
//参数：起止时间
public int getCareerage(Date startDate, Date endDate) {
Calendar calStart = Calendar.getInstance();
calStart.setTime(DateUtil.getBeginOfDay(startDate)); //获取一天的开始 （00:00:00）
Calendar calEnd = Calendar.getInstance();
calEnd.setTime(DateUtil.getBeginOfDay(endDate));
int Year = 0;
calStart.add(Calendar.YEAR, 1);
while (calStart.getTimeInMillis() <= calEnd.getTimeInMillis()) {
Year++;
calStart.add(Calendar.YEAR, 1);
if (Year > 10000) {
break;
}
return Year;
}
在需要xx年xx天的情况下
public String getCareerage(Date startDate, Date endDate) {
Calendar calStart = Calendar.getInstance();
calStart.setTime(DateUtil.getBeginOfDay(startDate));
Calendar calEnd = Calendar.getInstance();
calEnd.setTime(DateUtil.getBeginOfDay(endDate));
int Year = 0;
calStart.add(Calendar.YEAR, 1);
while (calStart.getTimeInMillis() <= calEnd.getTimeInMillis()) {
Year++;
calStart.add(Calendar.YEAR, 1);
if (Year > 10000) {
break;
}
}
calStart.setTime(DateUtil.getBeginOfDay(startDate));
calStart.add(Calendar.YEAR, Year);
calStart.add(Calendar.DATE, -1);
Long day = (calEnd.getTime().getTime() - calStart.getTime().getTime()) / (1000 * 3600 * 24);
System.out.println("year:"+Year +"----"+"day:"+day);
if(Year!=0 && day!=0){
return Year + "年" + day + "天";
}
else if(Year==0 && day!=0){
return day + "天";
}else if(Year!=0 && day==0){
return Year+"周年";
}else if(Year==0 && day ==0){
return "0天";
}
return null;
}
DateUtil.getBeginOfDay 方法
public static Date getBeginOfDay(Date date) {
Calendar cal = Calendar.getInstance();
try {
cal.setTime(date);
cal.set(Calendar.HOUR_OF_DAY, 0);
cal.set(Calendar.MINUTE, 0);
cal.set(Calendar.SECOND, 0);
cal.set(Calendar.MILLISECOND, 0);
return cal.getTime();
} catch (Exception e) {
return null;
}
}