[Java知识库]java计算时间差值

java计算时间差值

记录下方便自己以后使用

public String computeTime(Date startTime,Date endTime){
        if (StringUtils.isNotNull(startTime)){
            Date gpsDate =startTime;
            Date sysDate =endTime;
            long gpsDateKs = gpsDate.getTime();
            long sysDateJs = sysDate.getTime();
            long sjc = sysDateJs - gpsDateKs;
            int day = (int) (sjc / (1000 * 60 * 60 * 24));// 剩余的天数
            int hour = (int) ((sjc % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));// 剩余的小时数
            int minute = (int) (((sjc % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) / (1000 * 60));// 剩余的分钟数
            int second = (int) ((((sjc % (1000 * 60 * 60 * 24)) % (1000 * 60 * 60)) % (1000 * 60)) / 1000);
            //System.out.println("天：" + day + "小时：" + hour + "分钟：" + minute
            // + "秒：" + second);
            if(day>0){
                return day+"天";
            }else if (hour>0){
                return hour+"小时"+minute+"分钟";
            }else if (minute>0){
                return   minute+"分钟";
            }else if (second>0){
                return minute + "秒";
            }else {
                return null;
            }
        }else {
            return null;
        }
    }