1. JSTL格式化和解析日期
格式化日期:
? ? 2. JavaScript 格式化 ? ?<fmt:formatDate value="${model.date}" pattern ="yyyy-MM-dd" >
或者
<fmt:formatDate value="<%=new java.util.Date() %>" pattern ="yyyy-MM-dd" />
取得request参数:
<c:out value="param.参数名"/>
jstl格式化日期标签收藏
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jstl/fmt" %>
<fmt:parseDate value="${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="${isoDate}" type="date" dateStyle="long"/>
2004年5月31日
<fmt:formatDate value="${isoDate}" type="date" dateStyle="full"/>
2004年5月31日 星期一
Attribute: timeStyle; optional. Varies the time format.
<fmt:formatDate value="${isoDate}" type="time" timeStyle="default"/>
23:59:59
<fmt:formatDate value="${isoDate}" type="time" timeStyle="short"/>
下午11:59
<fmt:formatDate value="${isoDate}" type="time" timeStyle="medium"/>
23:59:59
<fmt:formatDate value="${isoDate}" type="time" timeStyle="long"/>
下午11时59分59秒
<fmt:formatDate value="${isoDate}" type="time" timeStyle="full"/>
下午11时59分59秒 CDT
Attribute: pattern; optional. Inidcates date/time custom patterns.
<fmt:formatDate value="${date}" type="both" pattern="EEEE, MMMM d, yyyy HH:mm:ss Z"/>
星期四, 四月 1, 2004 13:30:00 -0600
<fmt:formatDate value="${isoDate}" type="both" pattern="d MMM yy, h:m:s a zzzz/>
/**//*
将String类型解析为Date类型.
parseDate('2006-1-1') return new Date(2006,0,1)
parseDate(' 2006-1-1 ') return new Date(2006,0,1)
parseDate('2006-1-1 15:14:16') return new Date(2006,0,1,15,14,16)
parseDate(' 2006-1-1 15:14:16 ') return new Date(2006,0,1,15,14,16);
parseDate('2006-1-1 15:14:16.254') return new Date(2006,0,1,15,14,16,254)
parseDate(' 2006-1-1 15:14:16.254 ') return new Date(2006,0,1,15,14,16,254)
parseDate('不正确的格式') retrun null
*/
function parseDate(str){
if(typeof str == 'string'){
var results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) *$/);
if(results && results.length>3)
return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]));
results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) +(\d{1,2}):(\d{1,2}):(\d{1,2}) *$/);
if(results && results.length>6)
return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]),parseInt(results[4]),parseInt(results[5]),parseInt(results[6]));
results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) +(\d{1,2}):(\d{1,2}):(\d{1,2})\.(\d{1,9}) *$/);
if(results && results.length>7)
return new Date(parseInt(results[1]),parseInt(results[2]) -1,parseInt(results[3]),parseInt(results[4]),parseInt(results[5]),parseInt(results[6]),parseInt(results[7]));
}
return null;
}
/**//*
将Date/String类型,解析为String类型.
传入String类型,则先解析为Date类型
不正确的Date,返回 ''
如果时间部分为0,则忽略,只返回日期部分.
*/
function formatDate(v){
if(typeof v == 'string') v = parseDate(v);
if(v instanceof Date){
var y = v.getFullYear();
var m = v.getMonth() + 1;
var d = v.getDate();
var h = v.getHours();
var i = v.getMinutes();
var s = v.getSeconds();
var ms = v.getMilliseconds();
if(ms>0) return y + '-' + m + '-' + d + ' ' + h + ':' + i + ':' + s + '.' + ms;
if(h>0 || i>0 || s>0) return y + '-' + m + '-' + d + ' ' + h + ':' + i + ':' + s;
return y + '-' + m + '-' + d;
}
return '';
}