1. JSTL格式化和解析日期
格式化日期:
<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="${isoDate}" type="both" pattern="d MMM yy, h:m:s a zzzz/>
2. JavaScript 格式化
/**//* 将String类型解析为Date类型. parseDate('2006-1-1') return new Date(2006,0,1) parseDate(' 2006-1-1 ') return new Date(2006,0,1) parseDate('2006-1-1 15:14:16') return new Date(2006,0,1,15,14,16) parseDate(' 2006-1-1 15:14:16 ') return new Date(2006,0,1,15,14,16); parseDate('2006-1-1 15:14:16.254') return new Date(2006,0,1,15,14,16,254) parseDate(' 2006-1-1 15:14:16.254 ') return new Date(2006,0,1,15,14,16,254) parseDate('不正确的格式') retrun null */ function parseDate(str){ if(typeof str == 'string'){ var results = str.match(/^ *(\d{4})-(\d{1,2})-(\d{1,2}) *$/); 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 ''; }