Junior Member
View shows ${foo} instead of the real value
just simple web app. I set string "bar" into variable foo, and try to show it in a jsp page. the controller and jsp is copied from mvc-showcase. The problem is when I run it on jetty, jsp page does not translate ${foo} into value "bar". Anything I am missing? By the way, I configure the dependency as spring-mvc 3.0.3.RELEASE in my Maven. Any suggestion is appreciated.
Junior Member
Senior Member
You'll hardly get any help without more info...post your controller and your jsp as a start...
Junior Member
Thank you for the reply. the controller is as simple asOriginally Posted by Enrico Pizzi
@Controller
public class MessageController {
@RequestMapping(value="/show", method=RequestMethod.GET)
public String prepare(Model model) {
model.addAttribute("foo", "bar");
model.addAttribute("fruit", "apple");
return "show";
}
}
and the jsp is
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<html>
<head>
<title>My HTML View</title>
</head>
<body>
<h1>foo = ${foo}</h1>
<h1>fruit = ${fruit}</h1>
</body>
</html>
no exception thrown. it just shows ${foo} and ${fruit} on the page instead of "bar" and "apple". Any clues? Thanks a lot.
Junior Member
Thank you for the reply. the controller is as simple as
and the jsp isCode:@Controller public class MessageController { @RequestMapping(value="/show", method=RequestMethod.GET) public String prepare(Model model) { model.addAttribute("foo", "bar"); model.addAttribute("fruit", "apple"); return "show"; } }
no exception thrown. it just shows ${foo} and ${fruit} on the page instead of "bar" and "apple". Any clues? Thanks a lot.Code:<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ page session="false" %> <html> <head> <title>My HTML View</title> </head> <body> <h1>foo = ${foo}</h1> <h1>fruit = ${fruit}</h1> </body> </html>
Senior Member
Make sure you are using the right servlet version in your web.xml
and if that doesnt work try adding this directive in your jspCode:<?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">
Code:<%@ page isELIgnored="false" %>
Senior Member
Hi Gao,
you can't use jstl EL directly inside a jsp page and expect it to be resolved...use a tag like the c:out tag instead:
and it will work...Code:<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <%@ page session="false" %> <html> <head> <title>My HTML View</title> </head> <body> <h1>foo = <c:out value="${foo}"/></h1> <h1>fruit = <c:out value="${fruit}"/></h1> </body> </html>
Senior Member
Not true..JSTL and EL and two different things. EL can work perfectly fine without a c tag. EL is a feature of the JSP engine, not JSTL. Here is an example from one of my production applications
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page session="false" %>
<html>
<head>
<title>My HTML View</title>
</head>
<body>
<h1>foo = <c:out value="${foo}"/></h1>
<h1>fruit = <c:out value="${fruit}"/></h1>
</body>
</html>
Code:<tr> <td>Customer Name</td> <td>${customer.name}</td> </tr>
Junior Member
Cool. It works after I change the servlet version to 2.5. The automatically generated one is 2.3 by STS. Thank you guys very much!
Senior Member
EL has become a standard feature only for JSP 2.0...if you are using older JSP standard you only access EL through jstl tags...since direct access is not working for him, it means he is not using JSP 2.0 so he needs the tag...
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