java中如何date拼接上23:59:59

使用Calendar类来实现

Date date = new Date();
Calendar calendar = Calendar.getInstance();
calendar. setTime(date):
calendar.add(calendar.HOUR_OF_DAY，23);
calendar.add(Calendar.MINUTE，59);
calendar.add(calendar .SECOND， 59)
Date result = calendar.getTime() ;
dbUpdateRecord.setEndTime(result);