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Showing the current date using JSTL formatDate tag

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问题 I am trying to show the current date in my JSP page using JSTL. below is the code I am using. <jsp:useBean id="now" class="java.util.Date" scope="request" /> <fmt:formatDate value="${now}" pattern="MM.dd.yyyy" /> But the above code is not producing any results? Am I missing anything here or is there any better approach for this? I am using JSTL 1.1. 回答1: Try to print it without formatting, ${now}, you probably have null in there. Do you have this attribute in request scope? Just double check,

Why is jstl's formatNumber currency symbol locale specific when setting currencyCode

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问题 I'm using formatNumber as follows: <fmt:formatNumber value="${amount}" type="currency" currencyCode="${currencyCode}" var="amt" /> If I'm in locale en_US and the currency code is EUR I get EUR as the symbol, but if I'm in locale en_GB I get € . Why is the locale taken into account? Shouldn't EUR always convert into € ? Is there anyway to get the behavior I'm expecting using formatNumber ? 回答1: Locale is taken into acount so the output makes sense to the user. As a silly American (who lives in

Why is jstl's formatNumber currency symbol locale specific when setting currencyCode

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iterating of muliple items in jstl

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问题 I have this requirement to iterate over 3 lists at the same time in jstl. for iterating over a single list we use <c:forEach var = "mfgn" items = "${requestScope.mfgNumber}" varStatus = "status"> do something; </c:forEach> I need to do some thing like <c:forEach var = "mfgn" var = "issue" items = "${requestScope.mfgNumber}" items = "${requestScope.something" varStatus = "status"> mfgNumber; </c:forEach> is this possible or there an otherway to iterate over multiple lists at the same time. 回答1

jstl fmt功能说明

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所有标签： Tags fmt:requestEncoding fmt:setLocale fmt:timeZone fmt:setTimeZone fmt:bundle fmt:setBundle fmt:message fmt:param fmt:formatNumber fmt:parseNumber fmt:formatDate fmt:parseDate <%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %> jstl fmt 函数大全主要功能格式化日期格式 (2008年5月5日22点00分23秒) <fmt:formatDate value="<%=new Date() %>" pattern="yyyy年MM月dd日HH点mm分ss秒" /> 保留两位小数 <fmt:formatNumber value="123.123456789" pattern="0.00"/> 格式数字 ( 45,678.234 ) <fmt:formatNumber type="number" value="45678.2345" /> 格式百分比 (23%) <fmt:formatNumber type="percent" value="0.2345" /> 其他 <fmt:bundle>：资源绑定

fmt jstl标签时间格式化例子

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JSTL foreach: get Next object

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问题 I need display product in list into 3 columns with foreach . Here is my code: <table> <c:forEach items="${lstProduct}" var="product" varStatus="status" step="3"> <tr> <td>  ${product.id} ${product.name} </td> <td>   </td> <td>  <!-- productRight = productMiddle.getNext()

Alternative to using c:out to prevent XSS

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问题 I'm working on preventing cross site scripting (XSS) in a Java, Spring based, Web application. I have already implemented a servlet filter similar to this example http://greatwebguy.com/programming/java/simple-cross-site-scripting-xss-servlet-filter/ which sanitizes all the input into the application. As an extra security measure I would like to also sanitize all output of the application in all JSPs. I have done some research to see how this could be done and found two complementary options.

How to use both single and double quotes inside JSTL/EL expression?

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问题 I want to call fn:replace inside EL inside c:out to replace quote caracters. The following does not work <c:out value="${fn:replace(userName,'"','\\"')}"/> because XML parser stops at first double quote and sees no c:cout tag termination (JSP compilation stage error). The following <c:out value="${fn:replace(userName,'"','\\"')}"/> does not work, probably because replace function does not see actual quote character. 回答1: Parameterize them with <c:set> . <c:set var="search" value='"' /> <c:set

Add values to arraylist use JSTL

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问题 is it possible to add values to an ArrayList instead of using a HashMap something like: <jsp:useBean id="animalList" class="java.util.ArrayList" /> <c:set target="${animalList}" value="Sylvester"/> <c:set target="${animalList}" value="Goofy"/> <c:set target="${animalList}" value="Mickey"/> <c:forEach items="${animalList}" var="animal"> ${animal}<br> </c:forEach> now getting the error: javax.servlet.jsp.JspTagException: Invalid property in <set>: "null" thx 回答1: JSTL is not designed to do this