import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Calendar;

//func1
Calendar Cld = Calendar.getInstance();
int YY = Cld.get(Calendar.YEAR) ;
int MM = Cld.get(Calendar.MONTH)+1;
int DD = Cld.get(Calendar.DATE);
int HH = Cld.get(Calendar.HOUR_OF_DAY);
int mm = Cld.get(Calendar.MINUTE);
 
int SS = Cld.get(Calendar.SECOND);
int MI = Cld.get(Calendar.MILLISECOND);    
//由整型而來,因此格式不加0,如  2016/5/5-1:1:32:694
System.out.println(YY + "/" + MM + "/" + DD + "-" + HH + ":" + mm + ":" + SS + ":" + MI);

//func2
Calendar cal = Calendar.getInstance(); 
Date date = cal.getTime();
//  2016/05/05-01:01:34:364
System.out.println(new
 
 SimpleDateFormat("yyyy/MM/dd-HH:mm:ss:SSS").format(date));

//func3  2016/05/05-01:01:34:364
System.out.println(new SimpleDateFormat("yyyy/MM/dd-HH:mm:ss:SSS").format(new Date()));

註：參考鏈接：http://www.cnblogs.com/cnblogszs/p/5508223.html

java如何獲取當前時間，精確到毫秒