information passed from servlet to JSP

hello,
sorry for cross-posting, but I first put my thread in the JavaScript forum...

so, here is my problem:

In my JSP pages I'd like to use a certain info passed by the controller servlet.

For instance, in my servlet I have the following:

Code: Select all

Animal myAnimal = new Animal();
// Set attributes
request.setAttribute("myAnimal", myAnimal);
getServletContext().getRequestDispatcher("/myJSP.jsp").forward(request, response);

Now in the jstl tags of myJSP.jsp I can use the following:

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<c:forEach items='${myAnimal.body.legs}' var="leg">
   ......
</c:forEach>

BUT I cannot use the following:

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<% for(int i=0; i<myAnimal.getBody().getLegs().length; i++) { %>
   ......
<% } %>

... it complains that myAnimal cannot be resolved

I also tried:

Code: Select all

<%@ page import="com.mycompany.Animal" %> 
<%! Animal jspAnimal = (Animal)request.getAttribute("myAnimal"); %>

...but then I get "request cannot be resolved" for the second line...


Could you please explain why I cannot use "myAnimal" in the plain JSP tags???


Thans a lot ! ! !

Hey there:
The reason why you can't use myAnimal within the tag is that that object doesn't exist, thus it cannot be resolved. Now you were close whit this line

<code><%! Animal jspAnimal = (Animal)request.getAttribute("myAnimal"); %></code>

but it should have read:

<code> <% Animal jspAnimal = (Animal)request.getAttribute("myAnimal"); %> </code>

and then, later on:

<code><% for(int i=0; i<jspAnimal.getBody().getLegs().length; i++) { %>
......
<% } %></code>