Jsp-jstl-format-formatdate-tag
提供:Dev Guides
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