Java/JSTL/Date — различия между версиями
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Текущая версия на 06:17, 1 июня 2010
Содержание
Date Formating in JSTL
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.ru/jstl/fmt" prefix="fmt" %>
<html>
<head>
<title>Calendar</title>
</head>
<body>
<form method="POST">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="62%" id="AutoNumber1">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">Date
Formatting</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="47%">Enter a month(1-12)</td>
<td width="53%">
<input type="text" name="month" size="20" />
</td>
</tr>
<tr>
<td width="47%">Enter a year(i.e. 2002)</td>
<td width="53%">
<input type="text" name="year" size="20" />
</td>
</tr>
<tr>
<td width="100%" colspan="2">
<p align="center">
<input type="submit" value="Submit" name="submit" />
<input type="reset" value="Reset" name="reset" />
</p>
</td>
</tr>
</table>
<p> </p>
</form>
<c:if test="${pageContext.request.method=="POST"}">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="63%" id="AutoNumber2">
<fmt:parseDate var="now"
value="${param.month}/1/${param.year}" type="date"
dateStyle="short" />
<tr>
<td width="100%" colspan="7" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">
<fmt:formatDate pattern="MMMMM yyyy"
value="${now}" />
</font>
</b>
</p>
</td>
</tr>
<fmt:formatDate var="i" pattern="E" value="${now}" />
<c:choose>
<c:when test="${i=="Sun"}">
<c:set var="i" value="1" />
</c:when>
<c:when test="${i=="Mon"}">
<c:set var="i" value="2" />
</c:when>
<c:when test="${i=="Tue"}">
<c:set var="i" value="3" />
</c:when>
<c:when test="${i=="Wed"}">
<c:set var="i" value="4" />
</c:when>
<c:when test="${i=="Thu"}">
<c:set var="i" value="5" />
</c:when>
<c:when test="${i=="Fri"}">
<c:set var="i" value="6" />
</c:when>
<c:when test="${i=="Sat"}">
<c:set var="i" value="7" />
</c:when>
<c:otherwise>
<c:set var="i" value="?" />
</c:otherwise>
</c:choose>
<c:choose>
<c:when test="${param.month==2}">
<c:set var="max" value="28" />
<c:if
test="${ ((param.year % 4 == 0 && paran.year % 100 != 0) || param.year % 400 == 0) }">
<c:set var="max" value="29" />
</c:if>
</c:when>
<c:when test="${param.month==4}">
<c:set var="max" value="30" />
</c:when>
<c:when test="${param.month==6}">
<c:set var="max" value="30" />
</c:when>
<c:when test="${param.month==9}">
<c:set var="max" value="30" />
</c:when>
<c:when test="${param.month==11}">
<c:set var="max" value="30" />
</c:when>
<c:otherwise>
<c:set var="max" value="31" />
</c:otherwise>
</c:choose>
<tr>
<td width="70">
<b>
<center>Sunday</center>
</b>
</td>
<td width="70">
<b>
<center>Monday</center>
</b>
</td>
<td width="70">
<b>
<center>Tuesday</center>
</b>
</td>
<td width="70">
<b>
<center>Wednesday</center>
</b>
</td>
<td width="70">
<b>
<center>Thursday</center>
</b>
</td>
<td width="70">
<b>
<center>Friday</center>
</b>
</td>
<td width="70">
<b>
<center>Saturday</center>
</b>
</td>
</tr>
<c:set var="d" value="1" />
<c:set var="d" value="1" />
<c:forEach var="x" begin="1" end="35">
<c:if
test="${(x==1)||(x==8)||(x==15)||(x==22)||(x==29)}">
</tr><tr>
</c:if>
<td>
<c:if
test="${ (d<=max) && ((x>7)||(i<=x)) }">
<c:out value="${d}" />
<c:set var="d" value="${d+1}" />
</c:if>
 
<br />
<br />
<br />
</td>
</c:forEach>
</table>
</c:if>
</body>
</html>
Format Locale date in JSP
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %>
<%@ taglib uri="http://java.sun.ru/jstl/fmt" prefix="fmt" %>
<jsp:useBean id="date" class="java.util.Date" />
<html>
<head><title><fmt:message key="Welcome" /></title></head>
<body>
<h2><fmt:message key="Hello" /> <fmt:message key="and" /> <fmt:message key="Welcome" /></h2>
<fmt:formatDate value="${date}" type="both" dateStyle="full" timeStyle="short" /> <br />
Locale: <c:out value="${pageContext.request.locale.language}" />_<c:out value="${pageContext.request.locale.country}" />
</body>
</html>
JSTL Format: Date
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.ru/jstl/core-rt" prefix="c-rt" %><%@ taglib uri="http://java.sun.ru/jstl/fmt" prefix="fmt" %>
<html>
<head>
<title>Format Date</title>
</head>
<body>
<c-rt:set var="now" value="<%=new java.util.Date()%>" />
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="63%" id="AutoNumber2">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">Formatting:
<fmt:formatDate value="${now}" type="both"
timeStyle="long" dateStyle="long" />
</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="51%">formatDate type="time"</td>
<td width="49%">
<fmt:formatDate type="time" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="date"</td>
<td width="49%">
<fmt:formatDate type="date" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both"</td>
<td width="49%">
<fmt:formatDate type="both" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both" dateStyle="default"
timeStyle="default"</td>
<td width="49%">
<fmt:formatDate type="both" dateStyle="default"
timeStyle="default" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both" dateStyle="short"
timeStyle="short"</td>
<td width="49%">
<fmt:formatDate type="both" dateStyle="short"
timeStyle="short" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both" dateStyle="medium"
timeStyle="medium"</td>
<td width="49%">
<fmt:formatDate type="both" dateStyle="medium"
timeStyle="medium" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both" dateStyle="long"
timeStyle="long"</td>
<td width="49%">
<fmt:formatDate type="both" dateStyle="long"
timeStyle="long" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">type="both" dateStyle="full"
timeStyle="full"</td>
<td width="49%">
<fmt:formatDate type="both" dateStyle="full"
timeStyle="full" value="${now}" />
</td>
</tr>
<tr>
<td width="51%">pattern="yyyy-MM-dd"</td>
<td width="49%">
<fmt:formatDate pattern="yyyy-MM-dd" value="${now}" />
</td>
</tr>
</table>
</body>
</html>
JSTL Parse Date
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.ru/jstl/fmt" prefix="fmt" %>
<html>
<head>
<title>Parse Date</title>
</head>
<body>
<form method="POST">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="62%" id="AutoNumber1">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">Date
Formatting</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="47%">Enter a date to be parsed:</td>
<td width="53%">
<input type="text" name="num" size="20" />
</td>
</tr>
<tr>
<td width="100%" colspan="2">
<p align="center">
<input type="submit" value="Submit" name="submit" />
<input type="reset" value="Reset" name="reset" />
</p>
</td>
</tr>
</table>
<p> </p>
</form>
<c:if test="${pageContext.request.method=="POST"}">
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="63%" id="AutoNumber2">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">Formatting:
<c:out value="${param.num}" escapeXml="false" />
</font>
</b>
</p>
</td>
</tr>
<tr>
<td width="51%">type="date" dateStyle="short"</td>
<td width="49%">
<c:catch var="e">
<fmt:parseDate var="i" type="date" dateStyle="short"
value="${param.num}" />
<c:out value="${i}" escapeXml="false" />
</c:catch>
<c:out value="${e}" escapeXml="false" />
</td>
</tr>
<tr>
<td width="51%">type="date" dateStyle="medium"</td>
<td width="49%">
<c:catch var="e">
<fmt:parseDate var="i" type="date" dateStyle="medium"
value="${param.num}" />
<c:out value="${i}" escapeXml="false" />
</c:catch>
<c:out value="${e}" escapeXml="false" />
</td>
</tr>
<tr>
<td width="51%">type="date" dateStyle="long"</td>
<td width="49%">
<c:catch var="e">
<fmt:parseDate var="i" type="date" dateStyle="long"
value="${param.num}" />
<c:out value="${i}" escapeXml="false" />
</c:catch>
<c:out value="${e}" escapeXml="false" />
</td>
</tr>
<tr>
<td width="51%">type="date" dateStyle="full"</td>
<td width="49%">
<c:catch var="e">
<fmt:parseDate var="i" type="date" dateStyle="full"
value="${param.num}" />
<c:out value="${i}" escapeXml="false" />
</c:catch>
<c:out value="${e}" escapeXml="false" />
</td>
</tr>
</table>
</c:if>
</body>
</html>
JSTL Time Zone
<%@ taglib uri="http://java.sun.ru/jstl/core" prefix="c" %><%@ taglib uri="http://java.sun.ru/jstl/core-rt" prefix="c-rt" %><%@ taglib uri="http://java.sun.ru/jstl/fmt" prefix="fmt" %>
<html>
<head>
<title>Timezones</title>
</head>
<body>
<c-rt:set var="now" value="<%=new java.util.Date()%>" />
<table border="1" cellpadding="0" cellspacing="0"
style="border-collapse: collapse" bordercolor="#111111"
width="63%" id="AutoNumber2">
<tr>
<td width="100%" colspan="2" bgcolor="#0000FF">
<p align="center">
<b>
<font color="#FFFFFF" size="4">Formatting:
<fmt:formatDate value="${now}" type="both"
timeStyle="long" dateStyle="long" />
</font>
</b>
</p>
</td>
</tr>
<c-rt:forEach var="zone"
items="<%=java.util.TimeZone.getAvailableIDs()%>">
<tr>
<td width="51%">
<c:out value="${zone}" />
</td>
<td width="49%">
<fmt:timeZone value="${zone}">
<fmt:formatDate value="${now}" timeZone="${zn}"
type="both" />
</fmt:timeZone>
</td>
</tr>
</c-rt:forEach>
</table>
</body>
</html>
