lnPact = lnPactBo.getById(lnPact);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
Date batchDate1=sdf.parse(lnPact.getBatchDate());
int dueDays1=Integer.parseInt(lnPact.getDueDays());
Calendar calendar = new GregorianCalendar();
calendar.setTime(batchDate1);
calendar.add(Calendar.DATE,1-dueDays1);
String overdueDate =sdf.format(calendar.getTime());
lnPact.setOverdueDate(overdueDate);
两个日期字段相减,进行计算
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转载自www.cnblogs.com/sukuokuo/p/9647932.html
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