Jboss: EL expression in JSP doesn't work
Question
I am running Jboss EAP 6.3. I have this form:
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>registrationPage.jsp</title>
</head>
<body>
<h1>Welcome to JBoss!</h1>
<div>
<p>You have successfully deployed a Java EE 6 web
application.</p>
</div>
<form id="reg" action="register.do" method="POST">
<h2>Member Registration</h2>
<table>
<tr>
<td style="text-align: right;"><label for="name">Name:</label>
</td>
<td><input type="text" id=name name="name"
value="${newMember.name}" /></td>
</tr>
<tr>
<td style="text-align: right;"><label for="email">Email:</label>
</td>
<td><input type="text" id="email" name="email"
value="${newMember.email}" /> <!-- <h:message for="email" errorClass="invalid" />-->
</td>
</tr>
<tr>
<td style="text-align: right;"><label
for="phoneNumber">Phone #:</label></td>
<td><input id="phoneNumber" name="phoneNumber"
type="text" value="${newMember.phoneNumber}" /></td>
</tr>
</table>
<p>
<input id="register" type="submit" value="Register" />
</p>
<p>
<label style="color: green;width: 100%;text-align: left;">${infoMessage}</label>
</p>
<p>
<label style="color: red; width: 100%;text-align: left;">${errorMessage}</label>
</p>
</form>
</body>
</html>
I am pretty sure I didn't change anything since yesterday, but today I woke up and it now looks like this:
There are no errors as far as I can see.
2 answers
solution1
2 ACCPTED 2015-04-17 14:27:25
It has been solved by adding
isELIgnored="false"
to the page. Like this:
<%@ page language="java" contentType="text/html; charset=UTF-8" isELIgnored="false" pageEncoding="ISO-8859-1"%>
Apparently EL expressions are ignored by default and you have to manually enable them.
solution2
1 2015-04-17 21:06:40
At first check that you have filled up the object "newMember" appropriately before loading this page. Then you can use the following process to show data in your view:
At first use this line top of your view page:
<%@ taglib prefix="c" uri="http://java.sun.com/jstl/core" %>
Then use the following process for your table, showing on the view. Here I have only shown the changes:
<td><input type="text" id=name name="name" value='<c:out value="${newMember.name}"></c:out>'/> </td> <td><input type="text" id="email" name="email" value='<c:out value="${newMember.email}"></c:out>'/> </td> <td><input id="phoneNumber" name="phoneNumber" type="text" value='<c:out value="${newMember.phoneNumber}"></c:out>'/>
3.I think it's a better process to show data in a view.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.