java获取当前时间精确到毫秒

import java.text.SimpleDateFormat;

import java.util.Date;

import java.util.Calendar;

//func1
Calendar Cld = Calendar.getInstance();
int YY = Cld.get(Calendar.YEAR) ;//年
int MM = Cld.get(Calendar.MONTH)+1;//月
int DD = Cld.get(Calendar.DATE);//日
int HH = Cld.get(Calendar.HOUR_OF_DAY);//时
int mm = Cld.get(Calendar.MINUTE);//分
int SS = Cld.get(Calendar.SECOND);//秒
int MI = Cld.get(Calendar.MILLISECOND);//毫秒    
//由整型而来,因此格式不加0,如  2017/5/5-1:1:32:694
System.out.println(YY + "/" + MM + "/" + DD + "-" + HH + ":" + mm + ":" + SS + ":" + MI);

//func2
Calendar cal = Calendar.getInstance(); 
Date date = cal.getTime();
//  2017/05/05-01:01:34:364
System.out.println(new SimpleDateFormat("yyyy/MM/dd-HH:mm:ss:SSS").format(date));

//func3  2017/05/05-01:01:34:364
System.out.println(new SimpleDateFormat("yyyy/MM/dd-HH:mm:ss:SSS").format(new Date()));