日期:2014-05-16  浏览次数:20563 次

jstl (struts bean、fmt等标签) - 格式化输出日期和日期型字符串

方法1:jstl

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

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<%@ page language="java" contentType="text/html; charset=gb2312"%>
<%@ taglib uri="
http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib uri="
http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
???? <head>
?????? <title>My JSP 'fmt.jsp' starting page</title>
???? </head>
??
???? <body>
????? <c:set var="salary" value="3540.2301"/>
????? <c:set var="total" value="56225.2301"/>
????? <fmt:setLocale value="en_US"/>
????? currency:<fmt:formatNumber value="${salary}" type="currency" currencyCode="USD"/><br>
????? percent:<fmt:formatNumber value="${salary/total}" type="percent" maxFractionDigits="4"/><br>
????? <hr>
????? <jsp:useBean ></jsp:useBean>
????? <fmt:setLocale value="zh_CN"/>
????? full--><fmt:formatDate value="${now}" type="both" dateStyle="full" timeStyle="full"/><br>
????? long--><fmt:formatDate value="${now}" type="both" dateStyle="long" timeStyle="long"/><br>
????? medium--><fmt:formatDate value="${now}" type="both" dateStyle="medium" timeStyle="medium"/><br>
????? default--><fmt:formatDate value="${now}" type="both" dateStyle="default" timeStyle="default"/><br>
????? short--><fmt:formatDate value="${now}" type="both" dateStyle="short" timeStyle="short"/><br>
???? </body>
</html>

今天是:<fmt:formatDate value="${now}" pattern="G yyyy年MM月dd日 E"/><br>
现在是:<fmt:formatDate value="${now}" pattern="a HH:mm:ss.S z"/>
结果:
今天是:公元 2007年10月19日 星期五
现在是:下午 20:04:11.484 CST

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

<fmt:parseDate value="${param.date}" var="date" pattern="yyyy/MM/dd:HH:mm:ss>
<fmt:parseDate value="${param.isoDate}" var="isoDate" pattern="yyyyMMdd'T'HHmmss">

The input parameters must match the patterns, or the JSP will thrown an exception. This page does no error handling.

Input parameters:
Date: 2004/04/01:13:30:00 Java format: Thu Apr 01 13:30:00 CST 2004
isoDate: 20040531T235959 Java format: Mon May 31 23:59:59 CDT 2004

Dates
Tag Output
Attribute: value; required. Tag has no body.
<fmt:formatDate value="${date}" type="both"/>

2004-4-1 13:30:00
<fmt:formatDate value="${isoDate}" type="both"/>

2004-5-31 23:59:59
Attribute: type; optional. Indicates what to print: date, time, or both.
<fmt:formatDate value="${date}" type="date"/>

2004-4-1
<fmt:formatDate value="${isoDate}" type="time"/>

23:59:59
Attribute: dateStyle; optional. Varies the date format.
<fmt:formatDate value="${isoDate}" type="date" dateStyle="default"/>

2004-5-31
<fmt:formatDate value="${isoDate}" type="date" dateStyle="short"/>

04-5-31
<fmt:formatDate value="${isoDate}" type="date" dateStyle="medium"/>

2004-5-31
<fmt:formatDate value="${isoDate}" type="date"