Values not displayed in jsp [duplicate]

StackOverflow https://stackoverflow.com/questions/22670323

  •  22-06-2023
  •  | 
  •  

Pergunta

I am new to spring framework and using jstl. I have a problem in displaying my data on jsp file. Here is my code

Controller

@RequestMapping(method = RequestMethod.GET, value = "/test")
public ModelAndView getTest(HttpServletRequest request) {
    List<Place> places = PlacesService.search(types, 48.137048, 11.57538599, 10000);
    for(Place place:places){        

        System.out.println("Name: " + place.getName());
        System.out.println("Rating: " + place.getRating());
        System.out.println("Categories: " + place.getTypes());
        counter++;
    }
    ModelAndView model = new ModelAndView("test");
    model.addObject("places", places);
    return model; 
}

In my test.jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"    pageEncoding="ISO-8859-1"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<html>
<body>
 Hello World!
 <c:forEach items="${places}" var="place">
   <c:out value="${place.name}"/>   
   <c:out value="${place.rating}"/>
   <c:out value="${place.types}"/>
</c:forEach>
<c:forEach begin="6" end="15" var="val">
    <c:out value="${val}"/>
</c:forEach>

</body>
</html>

For both the for loops I get ${place.name}, ${place.rating}, ${place.types} and ${val} printed. However System.print.out() gives me the desired values.

What I am doing wrong?

Foi útil?

Solução

Ok I found the solution. maybe it help someone else in future

If you are using the old JSP 1.2 descriptor, defined by DTD ,for example web.xml

  <!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
 //...
</web-app>

The EL is disabled or ignored by default, you have to enable it manually, so that it will outputs the value store in the “msg” model.

 <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
 <html>
 <head>
    <%@ page isELIgnored="false" %>
 </head>
 <body>
       ${msg}
 </body>
 </html>

If you are using the standard JSP 2.0 descriptor, defined by w3c schema ,for example web.xml

<web-app id="WebApp_ID" version="2.4" 
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">  
    //...
</web-app>

The EL is enabled by default, and you should see the value stored in the “msg” model

Outras dicas

In old JSP 1.2 descriptor, use this tag in your jsp header <%@ page isELIgnored=”false” %>

Licenciado em: CC-BY-SA com atribuição
Não afiliado a StackOverflow
scroll top