Date转化为字符串

java语法里, Date类型数据按格式输出.

//当前时间
final Date date = new Date();
//定义format格式
DateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss:SSS E z");
//按照格式,把时间转化成字符串
final String dateStr = dateFormat.format(date);
System.out.println(dateStr);

输出如下:

2023-06-07 03:12:35:522 周三 CST

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附表:列出了各种format标识符的含义.

标识符	含义	介绍	举例
G	era designator	Tex	AD
y	year	Number	2009
M	month in year	Text &	July & 07
d	day in month	Number	10
h	hour in am/pm (1-1	Number	12
H	hour in day (0-23)	Number	0
m	minute in hour	Number	30
s	second in minute	Number	55
S	millisecond	Num	978
E	day in week	Tex	Tuesday
D	day in year	Num	189
F	day of week in mon	Number	2 (2nd Wed in July)
w	week in year	Number	27
W	week in month	Number	2
a	am/pm marker	Text	PM
k	hour in day (1-24)	Number	24
K	hour in am/pm (0-1	Number	0
z	time zone	Text	Pacific Standard Time
’	escape for text	Del	(none)
’	single quote	Literal	’