JSTL-コア<fmt：formatDate>タグ

*<fmt：formatDate>* タグは、さまざまな方法で日付をフォーマットするために使用されます。

属性

*<fmt：formatDate>* タグには次の属性があります-

Attribute	Description	Required	Default
Value	Date value to display	Yes	None
type	DATE, TIME, or BOTH	No	date
dateStyle	FULL, LONG, MEDIUM, SHORT, or DEFAULT	No	default
timeStyle	FULL, LONG, MEDIUM, SHORT, or DEFAULT	No	default
pattern	Custom formatting pattern	No	None
timeZone	Time zone of the displayed date	No	Default time zone
var	Name of the variable to store the formatted date	No	Print to page
scope	Scope of the variable to store the formatted date	No	page

パターン属性は、日付のより正確な処理を指定するために使用されます-

Code	Purpose	Sample
G	The era designator	AD
y	The year	2002
M	The month	April & 04
d	The day of the month	20
h	The hour(12-hour time)	12
H	The hour(24-hour time)	0
m	The minute	45
s	The second	52
S	The millisecond	970
E	The day of the week	Tuesday
D	The day of the year	180
F	The day of the week in the month	2 (2nd Wed in month)
w	The week in the year	27
W	The week in the month	2
a	The a.m./p.m. indicator	PM
k	The hour(12-hour time)	24
K	The hour(24-hour time)	0
z	The time zone	Central Standard Time
'		The escape for text
		The single quote

例

<%@ taglib prefix = "c" uri = "http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix = "fmt" uri = "http://java.sun.com/jsp/jstl/fmt" %>

<html>
   <head>
      <title>JSTL fmt:dateNumber Tag</title>
   </head>

   <body>
      <h3>Number Format:</h3>
      <c:set var = "now" value = "<% = new java.util.Date()%>"/>

      <p>Formatted Date (1): <fmt:formatDate type = "time"
         value = "${now}"/></p>

      <p>Formatted Date (2): <fmt:formatDate type = "date"
         value = "${now}"/></p>

      <p>Formatted Date (3): <fmt:formatDate type = "both"
         value = "${now}"/></p>

      <p>Formatted Date (4): <fmt:formatDate type = "both"
         dateStyle = "short" timeStyle = "short" value = "${now}"/></p>

      <p>Formatted Date (5): <fmt:formatDate type = "both"
         dateStyle = "medium" timeStyle = "medium" value = "${now}"/></p>

      <p>Formatted Date (6): <fmt:formatDate type = "both"
         dateStyle = "long" timeStyle = "long" value = "${now}"/></p>

      <p>Formatted Date (7): <fmt:formatDate pattern = "yyyy-MM-dd"
         value = "${now}"/></p>

   </body>
</html>

上記のコードは、次の結果を生成します-

Date Format:
Formatted Date (1): 14:27:18
Formatted Date (2): 23-Sep-2010
Formatted Date (3): 23-Sep-2010 14:27:18
Formatted Date (4): 23/09/10 14:27
Formatted Date (5): 23-Sep-2010 14:27:18
Formatted Date (6): 23 September 2010 14:27:18 GST
Formatted Date (7): 2010-09-23

Jsp-jstl-format-formatdate-tag

JSTL-コア<fmt：formatDate>タグ

属性

例