jstl fmt
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<%@ taglib prefix='fmt' uri="http://java.sun.com/jsp/jstl/fmt" %><%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%><%@ taglib prefix='c' uri="http://java.sun.com/jsp/jstl/core" %><%@ taglib prefix='fmt' uri="http://java.sun.com/jsp/jstl/fmt" %><%String path = request.getContextPath();String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";%><!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"><html> <head> <base href="<%=basePath%>"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> <style type="text/css"> body {background-color: black;color: white;} span {text-align: center;color: green;background-color: yellow;} .notice {color: rgb(250,37,62);} hr { background-color: fuchsia; height: 5px;} </style> </head> <body> <fmt:bundle basename="jstl.jstl"> <span>从 .properties 文件中读取最简单的信息输出：</span> <fmt:message key="basemsg" /> <hr/> <span>从 .properties 文件中读取带有可填参数的信息，填入参数并输出：</span> <fmt:message key="msgwithparam"> <span class="notice"><fmt:param value="param-1-value" /> <span class="notice"><fmt:param value="param-2-value" /> </fmt:message> <hr/> <span>数字 格式化并输出：</span><br/> 数字:<fmt:formatNumber value="1234567890" type="number"/><br/> <!-- 定制数字格式时，# 表示按照默认格式来， --> 数字，定制了格式:<fmt:formatNumber value="1234567890" type="number" pattern="#,#00.0#" /><br/> 货币：<fmt:formatNumber value="35000" type="currency" /><br/> 百分比：<fmt:formatNumber value="0.317" type="percent" /><br/> <hr/> <span>格式化日期：</span><br/> <jsp:useBean id="now" class="java.util.Date"></jsp:useBean> <fmt:formatDate value="${now}" type="date" /><br/> <fmt:formatDate value="${now}" type="both" dateStyle="long" timeStyle="long" /><br/> <fmt:formatDate value="${now}" type="both" pattern="yyyy.MM.dd HH:mm:ss" /><br/> <hr/> <span>将字符串转化到正确的数字：<br/> 忽略第一个不符合数字条件的字符和其之后的所有字符，如果字符串不是以数字开头则报错</span><br/> <fmt:parseNumber type="number" >123.02a</fmt:parseNumber><br/> <fmt:parseNumber type="number" pattern="#,#00.0#">123</fmt:parseNumber><br/> <fmt:parseNumber type="number" pattern="#,#00.0#">123.00a1</fmt:parseNumber><br/> <fmt:parseNumber type="number" pattern="#,#00.0#">3saaa</fmt:parseNumber><br/> </fmt:bundle> </body></html>
