//测试主方法
public static void main(String[] args) {
Date currentTime = ("2004-03-26 13:31:40"); //当前系统时间
Date firstTime = ("2004-01-02 11:30:24"); //查询的数据时间
String str=getTime（currentTime ,firstTime ）;
("获取的年月日时分秒时间差为："+str);
}
//获取时间差方法
public static String getTime(Date currentTime,Date firstTime){
long diff = () - ();//这样得到的差值是微秒级别
Calendar currentTimes =dataToCalendar(currentTime);//当前系统时间转Calendar类型
Calendar firstTimes =dataToCalendar(firstTime);//查询的数据时间转Calendar类型
int year = () - ();//获取年
int month = () - ();
int day = (Calendar.DAY_OF_MONTH) - (Calendar.DAY_OF_MONTH);
if (day < 0) {
month -= 1;
(, -1);
day = day + (Calendar.DAY_OF_MONTH);//获取日
}
if (month < 0) {
month = (month + 12) % 12;//获取月
year--;
}
long days = diff / (1000 * 60 * 60 * 24);
long hours = (diff-days*(1000 * 60 * 60 * 24))/(1000* 60 * 60); //获取时
long minutes = (diff-days*(1000 * 60 * 60 * 24)-hours*(1000* 60 * 60))/(1000* 60); //获取分钟
long s=(diff/1000-days*24*60*60-hours*60*60-minutes*60);//获取秒
String CountTime=""+"year"+"年"+month+"月"+day+"天"+hours+"小时"+minutes+"分"+s+"秒";
return CountTime;
}
//Date类型转Calendar类型
public static Calendar dataToCalendar(Date date) {
Calendar calendar = ();
(date);
return calendar;
}