我正在使用亚马逊ec2实例，我上传了所有代码。 我已经成功安装了Tomcat6和mysql服务器，现在我正试图点击服务器，但是有一个jasper异常来了：
org.apache.jasper.JasperException: /header-inner.jsp(30,9) The function equals must be used with a prefix when a default namespace is not specified
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:40)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:407)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:148)
org.apache.jasper.compiler.Validator$ValidateVisitor$1FVVisitor.visit(Validator.java:1528)
org.apache.jasper.compiler.ELNode$Function.accept(ELNode.java:131)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:206)
org.apache.jasper.compiler.ELNode$Visitor.visit(ELNode.java:248)
org.apache.jasper.compiler.ELNode$Root.accept(ELNode.java:56)
org.apache.jasper.compiler.ELNode$Nodes.visit(ELNode.java:206)
org.apache.jasper.compiler.Validator$ValidateVisitor.validateFunctions(Validator.java:1553)
org.apache.jasper.compiler.Validator$ValidateVisitor.getJspAttribute(Validator.java:1326)
org.apache.jasper.compiler.Validator$ValidateVisitor.checkXmlAttributes(Validator.java:1176)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:840)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:859)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:519)
org.apache.jasper.compiler.Node$IncludeDirective.accept(Node.java:656)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:859)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:859)
org.apache.jasper.compiler.Node$CustomTag.accept(Node.java:1530)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Validator$ValidateVisitor.visit(Validator.java:519)
org.apache.jasper.compiler.Node$IncludeDirective.accept(Node.java:656)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Node$Visitor.visitBody(Node.java:2411)
org.apache.jasper.compiler.Node$Visitor.visit(Node.java:2417)
org.apache.jasper.compiler.Node$Root.accept(Node.java:495)
org.apache.jasper.compiler.Node$Nodes.visit(Node.java:2361)
org.apache.jasper.compiler.Validator.validateExDirectives(Validator.java:1785)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:198)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:354)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:334)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:321)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:592)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:328)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
javax.servlet.http.HttpServlet.service(HttpServlet.java:723)
ac.filters.HomeFilter.doFilter(HomeFilter.java:49)
我无法弄清楚错误。请帮我解决一下这个。 这是我的标题内码：
<%@ taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@page import="java.util.List"%>
<%
String source="";
String path = "";
if( session.getAttribute("admin") != null && (Boolean)session.getAttribute("admin")){
source = "admin";
}else if(session.getAttribute("userId") !=null ){
source="user";
path = (String)session.getAttribute("path");
}else if( session.getAttribute("advisorId") !=null){
source="advisor";
path = (String)session.getAttribute("path");
}
String pageurl = request.getRequestURL().toString();
pageContext.setAttribute("pageurl", pageurl);
pageContext.setAttribute("source", source);
%>
<div class="div-container-navbar">
<nav class="navbar navbar-default">
<div class="container-fluid">
<div class="navbar-header">
<fmt:bundle basename="ac.resources.Path" prefix="path.">
<c:if test="${source.equals('user') }">
<a class="navbar-brand hidden-xs" href="userdashboard" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="assets/img/horizontal_logo.png" class="" style="max-width:187px;"></a>
</c:if>
<c:if test="${source.equals('advisor') }">
<a class="navbar-brand hidden-xs" href="advisordashboard" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="assets/img/horizontal_logo.png" class="" style="max-width:187px;"></a>
</c:if>
</fmt:bundle>
</div>
<!-- Collect the nav links, forms, and other content for toggling -->
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav first-ul">
<li><a href="advisors?category=all" onclick="ga('send', 'event', 'AdvisorsPage', 'click', '${pageurl}');">Advisors <span class="sr-only">(current)</span></a></li>
<li><a href="questions" onclick="ga('send', 'event', 'QuestionsPage', 'click', '${pageurl}');">Q&A</a></li>
<!-- <li><a href="becomeanadvisor">Be an Advisor</a></li>
<li><a href="howitworks">How it Works</a></li> -->
<li><a href="logout" onclick="ga('send', 'event', 'Logout', 'click', '${pageurl}');">Sign Out</a></li>
<li><form class="search-form" action="Search"><input class="form-control search-box-i" type="text" placeholder="Search" onkeyup="FindSuggestions(this)" name="word" autocomplete="off">
<div id="headersuggestions" class="dropdown sugg">
</div></form><span class="make-search-small">X</span></li>
<li><div><ul class="nav navbar-nav navbar-right " >
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" style="background-image: none !important" onclick="ga('send', 'event', 'Notifications', 'click', '${pageurl}');"><img src="assets/img/header_notification.svg" style="width:24px;"><span class="badge" id="notification_count"></span></a>
<ul id="notifications" class="dropdown-menu notify-div-dropdown scrollable-content" style="min-width: 273px;padding: 0px;border: 0px;max-height: 250px;overflow-y: scroll;">
</ul></div>
</li>
<li>
<c:if test="${source.equals('user') }">
<a href="userdashboard" style="background-image: none !important" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="<%=path %>" style="width: 32px;height: 32px;border-radius: 50%;"></a>
</c:if>
<c:if test="${source.equals('advisor') }">
<a href="advisordashboard" style="background-image: none !important" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="<%=path %>" style="width: 32px;height: 32px;border-radius: 50%;"></a>
</c:if>
</li>
</ul>
</ul>
</div><!-- /.navbar-collapse -->
</div><!-- /.container-fluid -->
</nav>
</div>
<!-- Sidebar -->
<nav class="navbar navbar-inverse navbar-fixed-top" id="sidebar-wrapper" role="navigation">
<ul class="nav sidebar-nav">
<li>
<c:if test="${source.equals('user') }">
<a href="userdashboard" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="<%=path %>" style="width: 55px;height: 55px;border-radius: 50%;border: 2px solid white;"></a>
</c:if>
<c:if test="${source.equals('advisor') }">
<a href="advisordashboard" onclick="ga('send', 'event', 'Dashboard', 'click', '${pageurl}');"><img src="<%=path %>" style="width: 32px;height: 32px;border-radius: 50%;border: 2px solid white;"></a>
</c:if>
</li>
<li>
<a href="advisors?category=all" onclick="ga('send', 'event', 'AdvisorsPage', 'click', '${pageurl}');">Advisors</a>
</li>
<li>
<a href="questions" onclick="ga('send', 'event', 'QuestionsPage', 'click', '${pageurl}');">Q&A</a>
</li>
<li>
<a href="becomeanadvisor" onclick="ga('send', 'event', 'BeAnAdvisor', 'click', '${pageurl}');">Be an Advisor</a>
</li>
<li>
<a href="howitworks" onclick="ga('send', 'event', 'HowItWorks', 'click', '${pageurl}');">How it Works</a>
</li>
<li>
<a href="logout" onclick="ga('send', 'event', 'Logout', 'click', '${pageurl}');">Sign Out</a>
</li>
</ul>
</nav>
<!-- /#sidebar-wrapper -->
<button type="button" class="hamburger is-closed visible-xs" data-toggle="offcanvas">
<span class="hamb-top"></span>
<span class="hamb-middle"></span>
<span class="hamb-bottom"></span>
</button>
<div class="visible-xs" style="position: absolute;top: -17px;left: 1%;"><ul class="nav navbar-nav navbar-right " style="border-top: 0px;">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false" style="background-image: none !important;margin-left: 63px;" onclick="ga('send', 'event', 'Notifications', 'click', '${pageurl}');"><img src="assets/img/header_notification.svg" style="width:15px;"><span class="badge" id="notification_count_mob"></span></a>
<ul id="notifications-mob" class="dropdown-menu notify-div-dropdown scrollable-content" style="min-width: 319px;padding: 0px;border: 0px;max-height: 250px;overflow-y: scroll;margin-top: 12px;">
</ul></div>
<form class="search-form" action="Search" method="get" style="position: absolute;top: 4px;right: 11%;"><input class="form-control search-box-xs visible-xs" type="text" placeholder="Search" name="word">
<div id="headersuggestionsmob" class="dropdown suggmob">
</div></form>
<script>
$(document).ready(function () {
var trigger = $('.hamburger'),
overlay = $('.overlay'),
isClosed = false;
trigger.click(function () {
hamburger_cross();
});
function hamburger_cross() {
if (isClosed == true) {
overlay.hide();
trigger.removeClass('is-open');
trigger.addClass('is-closed');
isClosed = false;
} else {
overlay.show();
trigger.removeClass('is-closed');
trigger.addClass('is-open');
isClosed = true;
}
}
$('[data-toggle="offcanvas"]').click(function () {
$('#wrapper').toggleClass('toggled');
});
});
</script>
<script type="text/javascript">
function FindSuggestions(s) {
var len = s.value.length;
if(len>=3){
$('.black-screen').show();
$.ajax({
url : 'GetSuggestions', // Your Servlet mapping or JSP(not suggested)
data : {"word" : s.value},
type : 'POST',
dataType : 'html', // Returns HTML as plain text; included script tags are evaluated when inserted in the DOM.
success : function(response) {
if(response != "nosuggestion"){
document.getElementById("headersuggestions").innerHTML="";
var obj = JSON.parse(response);
//document.getElementById("data").innerHTML= obj[0].word+"with "+ obj[0].hits+" hits" ;
$.each(obj, function(key,value) {
var html=' <div class="hsuggestion">'+value.word+'</div>';
$('.sugg').append(html);
$('.hsuggestion').show();
});
/* alert(obj[0].word+"with "+ obj[0].hits+" hits"); */
}else{
document.getElementById("headersuggestions").innerHTML="";
$('.hsuggestion').hide();
}
$('.black-screen').hide();
},
error : function(request, textStatus, errorThrown) {
}
});
}
}
$('body').on('focus', '.search-box-i', function(e){
$('.hsuggestion').show();
$('.make-search-small').show();
$('#bs-example-navbar-collapse-1 .first-ul>li:not(li:nth-child(4))').hide();
$('#bs-example-navbar-collapse-1 .first-ul').addClass('inc-searchulli');
$('#bs-example-navbar-collapse-1 .first-ul li:nth-child(4)').addClass('inc-searchulli');
$('.search-form').addClass('inc-searchbox');
}).on('blur',".search-box-i", function() {
/* $('#bs-example-navbar-collapse-1 .first-ul>li').show();
$('#bs-example-navbar-collapse-1 .first-ul').removeClass('inc-searchulli');
$('#bs-example-navbar-collapse-1 .first-ul li:nth-child(4)').removeClass('inc-searchulli');
$('.search-form').removeClass('inc-searchbox'); */
});
$('body').on('click', '.make-search-small', function(e){
$(this).hide();
$('#bs-example-navbar-collapse-1 .first-ul>li').show();
$('#bs-example-navbar-collapse-1 .first-ul').removeClass('inc-searchulli');
$('#bs-example-navbar-collapse-1 .first-ul li:nth-child(4)').removeClass('inc-searchulli');
$('.search-form').removeClass('inc-searchbox');
});
$('body').on('click', '.hsuggestion', function(e){
var suge= $(this).html();
$('.search-box-i').val(suge);
$('.hsuggestion').hide();
});
if(<%=source.equals("admin")%>){
var eventSource = new EventSource("AdminNotificationSSE");
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count').style.display = 'inline-block';
document.getElementById('notification_count').innerHTML = event.data;
}
}, false);
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications-mob').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count_mob').style.display = 'inline-block';
document.getElementById('notification_count_mob').innerHTML = event.data;
}
}, false);
eventSource.addEventListener('id', function(event) {
id1= event.data;
}, false);
}
else if(<%=source.equals("user")%>){
var eventSource = new EventSource("UserNotificationSSE");
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count').style.display = 'inline-block';
document.getElementById('notification_count').innerHTML = event.data;
}
}, false);
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications-mob').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count_mob').style.display = 'inline-block';
document.getElementById('notification_count_mob').innerHTML = event.data;
}
}, false);
}else if (<%=source.equals("advisor")%>) {
var eventSource = new EventSource("AdvisorNotificationSSE");
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count').style.display = 'inline-block';
document.getElementById('notification_count').innerHTML = event.data;
}
}, false);
eventSource.addEventListener('notify', function(event) {
document.getElementById('notifications-mob').innerHTML = event.data;
}, false);
eventSource.addEventListener('count', function(event) {
if(event.data >0){
document.getElementById('notification_count_mob').style.display = 'inline-block';
document.getElementById('notification_count_mob').innerHTML = event.data;
}
}, false);
}
</script>
答案 0 :(得分：3)
可能的问题原因是：$ {source.equals（＆＃39; user＆＃39;）}。您使用了EL2.2 API（EL函数与args）。 Tomcat从版本7开始支持EL 2.2 API。 http://redrockdigimark.com/apachemirror/tomcat/tomcat-7/v7.0.67/RELEASE-NOTES