What does this error means in JSP? (Unknown element (rtexpvalue) in attribute)
I am getting this error when running my application on LINE 3 of the jsp file.Is it to do with my tld file or jsp file?
org.apache.jasper.JasperException: /DisplayAllOrders.jsp(3,62) PWC6106: Unknown element (rtexpvalue) in attribute.
The TLD file:
<?xml version="1.0" encoding="UTF-8"?>
<taglib version="2.0" xmlns="http://java.sun.com/xml/ns/j2ee" lns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-jsptaglibrary_2_0.xsd">
<tlib-version>1.0</tlib-version>
<short-name>week07_portfolio<开发者_如何学Go;/short-name>
<uri>/WEB-INF/tlds/week07_portfolio</uri>
<tag>
<name>DisplayOrders</name>
<tag-class>tags.DisplayOrders</tag-class>
<body-content>JSP</body-content>
<variable>
<name-given>order</name-given>
<variable-class>beans.Order</variable-class>
<declare>true</declare>
<scope>NESTED</scope>
</variable>
<attribute>
<name>ordersListName</name>
<required>true</required>
<rtexpvalue>false</rtexpvalue>
</attribute>
</tag>
<tag>
<name>DisplayOrderLines</name>
<tag-class>tags.DisplayOrderLines</tag-class>
<body-content>JSP</body-content>
<variable>
<name-given>orderLine</name-given>
<variable-class>beans.OrderLine</variable-class>
<declare>true</declare>
<scope>NESTED</scope>
</variable>
<attribute>
<name>linesListName</name>
<required>true</required>
<rtexpvalue>false</rtexpvalue>
</attribute>
</tag>
</taglib>
the JSP file:
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ page import="java.util.*, java.text.*, beans.*" %>
<%@ taglib uri="/WEB-INF/tlds/week07_portfolio" prefix="wk07" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<% if (session.getAttribute("orderList") == null)
{
throw new ServletException("No order list available");
}
int ctr = 0;
SimpleDateFormat df = new SimpleDateFormat("dd-MMM-yyyy");
%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Week 07, Portfolio Exercise</title>
<link rel="stylesheet" type="text/css" href="Week07_Portfolio.css">
</head>
<body>
<h1>Week 07, Portfolio Exercise</h1>
<h2>Order list</h2>
<wk07:DisplayOrders ordersListName="orderList">
<table>
<tr class="header">
<td>Order Num: <%= order.getOrderNum() %></td>
<td>Customer: <%= order.getName() %></td>
<td>Date: <%= df.format(order.getOrderDate()) %></td>
</tr>
</table>
<% pageContext.setAttribute("orderLines", order.getOrderLines());
ctr = 0;
%>
<table>
<tr>
<th>Ref. Code</th>
<th>Item</th>
<th>Qty</th>
</tr>
<wk07:DisplayOrderLines linesListName="orderLines">
<tr<%= ctr++ % 2 == 0 ? " class=\"shaded\"" : ""%>>
<td><%= orderLine.getItem().getRefCode()%></td>
<td><%= orderLine.getItem().getName()%></td>
<td><%= orderLine.getQuantity()%></td>
</tr>
</wk07:DisplayOrderLines>
</table>
<p> </p>
</wk07:DisplayOrders>
</body>
It should be <rtexprvalue>.
Your taglib root declaration is broken.
<taglib version="2.0"
xmlns="http://java.sun.com/xml/ns/j2ee"
lns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee web-jsptaglibrary_2_0.xsd">
The lns must be xmlns and there must be a / between j2ee and web-jsptaglibrary_2_0.xsd.
The correct declaration is as follows:
<taglib version="2.0"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee/web-jsptaglibrary_2_0.xsd">
As a side-note, ensure that the web-app root declaration of your web.xml is at least as per Servlet 2.4. Else it will still not work.
<web-app
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
Unrelated to the problem, using scriptlets in JSP is discouraged since a decade.
加载中,请稍侯......
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