毫秒值转换为日期格式:
@Test
public void test(){
Date date = new Date(235959);
SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String time = formatter.format(date);
System.out.println("对应毫秒值的时间"+time);
}
日期转换为毫秒值:
@Test
public void date() throws ParseException {
String beginDate = "1970-01-01 08:03:55";
Date date = null;
SimpleDateFormat sdf =new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
date = sdf.parse(beginDate);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
System.out.println("对应时间的毫秒值="+calendar.getTimeInMillis());
}