java获取时间的格式

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package com.t201610.data;

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;

public class DateS {
public static void main(String[] args) {
Date date = new Date();
long time = date.getTime();
System.out.println(time);
//这个值实际上是当前时间值与1970年一月一号零时零分零秒相差的毫秒数。
long time2 = System.currentTimeMillis();
System.out.println(time);

SimpleDateFormat sdf1 = new SimpleDateFormat("yyyy-MM-dd",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf2 = new SimpleDateFormat("yyyy-MM-dd aa hh:mm:ss.SSS",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf3 = new SimpleDateFormat("yyyy年MM月dd日hh时mm分ss秒SSS毫秒",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf4 = new SimpleDateFormat("yyyy的ww星期-MM的WW星期",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf5 = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf6 = new SimpleDateFormat("zz ZZ",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf7 = new SimpleDateFormat("zz yyyy-MM-dd HH:mm:ss",Locale.SIMPLIFIED_CHINESE);
SimpleDateFormat sdf8 = new SimpleDateFormat("MM-dd yyyy",Locale.SIMPLIFIED_CHINESE);
String timeStr1 = sdf1.format(new Date());
String timeStr2 = sdf2.format(new Date());
String timeStr3 = sdf3.format(new Date());
String timeStr4 = sdf4.format(new Date());
String timeStr5 = sdf5.format(new Date());
String timeStr6 = sdf6.format(new Date());
String timeStr7 = sdf7.format(new Date());
String timeStr8 = sdf8.format(new Date());
System.out.println(timeStr1);
System.out.println(timeStr2);
System.out.println(timeStr3);
System.out.println(timeStr4);
System.out.println(timeStr5);
System.out.println(timeStr6);
System.out.println(timeStr7);
System.out.println(timeStr8);

}
}
/*output
1476696250297
1476696250297
2016-10-17
2016-10-17 下午 05:24:10.347
2016年10月17日05时24分10秒347毫秒
2016的43星期-10的04星期
2016-10-17 17:24:10
CST +0800
CST 2016-10-17 17:24:10
10-17 2016
*/
/*Letter Date or Time Component Presentation
G Era designator Text
y Year Year
M Month in year Month
w Week in year Number
W Week in month Number
D Day in year Number
d Day in month Number
F Day of week in month Number
E Day in week Text
a Am/pm marker Text
H Hour in day (0-23) Number
k Hour in day (1-24) Number
K Hour in am/pm (0-11) Number
h Hour in am/pm (1-12) Number
m Minute in hour Number
s Second in minute Number
S Millisecond Number
z Time zone General time zone
Z Time zone RFC 822 time zone*/

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