/**
* 计算时间差，求出两者相隔的时间
*
* @param nowDate
* 当前时间
* @param calculateDate
* 计算的时间
* @return
*/
public static long calculateTime(Date nowDate, Date calculateDate) {
long ret = 0;
try {
long t = nowDate.getTime() - calculateDate.getTime();
long day = t / (1000 * 60 * 60 * 24);
long hour = t / (1000 * 60 * 60);
long minute = t / (1000 * 60);
long second = t / 1000;
// ret = ?
} catch (Exception e) {
}
return ret;
}
/**
* 计算时间差，求出时间相隔的天数，值是四舍五入 <br><pre>
*/
public static long calculateTime4Days(Date nowDate, Date calculateDate) {
long ret = 0;
try {
long t = nowDate.getTime() - calculateDate.getTime();
// long day = d / (1000 * 60 * 60 * 24);
// 四舍五入
Double td = 0.0;
td += t;
long day = Math.round(td / (1000 * 60 * 60 * 24));
ret = day;
} catch (Exception e) {
}
return ret;
}
//**************************************************************************
/**
* 计算时间差，求出时间相隔的月份 <br><pre>
* 编写者： sven
* Email：swnic @isoftstone.com
* 创建时间：2013 -6- 7 下午02:21:58 </pre>
* @param boolean isBuc 是否补充：不足一月算一月，true；不足一月不算一月，false；
* @return long 说明
* @throws 异常类型 说明
*/
//**************************************************************************
public static long calculateTime4Month(Date startDate, Date endDate, boolean isBuc) {
long monthDiff = 0;
try {
// String start = "2011-06-12";
// String end = "2012-06-01";
// SimpleDateFormat fmt = new SimpleDateFormat("yyyy-MM-dd");
// Date startDate = fmt.parse(start);
// Date endDate = fmt.parse(end);
Calendar starCal = Calendar. getInstance();
starCal.setTime(startDate);
int sYear = starCal.get(Calendar.YEAR);
int sMonth = starCal.get(Calendar.MONTH);
int sDay = starCal.get(Calendar.DAY_OF_MONTH);
Calendar endCal = Calendar. getInstance();
endCal.setTime(endDate);
int eYear = endCal.get(Calendar.YEAR);
int eMonth = endCal.get(Calendar.MONTH);
int eDay = endCal.get(Calendar.DAY_OF_MONTH);
monthDiff = ((eYear - sYear) * 12 + (eMonth - sMonth));
// boolean isBuc = true;
if (isBuc) {
// 不足一月不算一月减1，默认做法，参考公式
// 依据天数补充，不足一月算一月加1
if (sDay < eDay) {
monthDiff = monthDiff + 1;
} else if (sDay > eDay) {
monthDiff = monthDiff - 1;
}
}
} catch (Exception e) {
}
return monthDiff;
}
