Spring MVC controller using #RequestParam with Apache tile 2 - spring

Question

I am have the following configuration for my Spring MVC + Apache tile 2 project.
The Tile configuration
<definition name="test1" extends="mymain">
<put-attribute name="main">
<definition template="/WEB-INF/views/tiles/template/generictemplate.jsp">
<put-attribute name="headerstyle" value="./resources/css/header.css" type="string" />
<put-attribute name="genericcontent" value="/WEB-INF/views/tiles/test.jsp" />
</definition>
</put-attribute>
</definition>
<definition name="test2" extends="mymain">
<put-attribute name="main">
<definition template="/WEB-INF/views/tiles/template/generictemplate.jsp">
<put-attribute name="headerstyle" value="./resources/css/header.css" type="string" />
<put-attribute name="genericcontent" value="/WEB-INF/views/tiles/test.jsp" />
</definition>
</put-attribute>
</definition>
The controller
#RequestMapping(value="/test1", method=RequestMethod.GET)
public String test1(#RequestParam(value="id", required=true) String id){
return "test1";
}
#RequestMapping(value="/test2", method=RequestMethod.GET)
public String test2(){
return "test2";
}
The view generictemplate.jsp
<%# include file="include.jsp" %>
<tiles:importAttribute name="headerstyle" />
<link href="${headerstyle}" rel="stylesheet" type="text/css" />
<div role="main" class="main clearfix">
<section class="generic">
<div class="post">
<tiles:insertAttribute name="genericcontent"/>
</div>
</section>
<!-- end main -->
</div>
My problem is
When i am calling test2 (without parameter), the header.css can be read. But when test1 is called, I am getting 404 Not Found for header.css. I noticed that view is trying to access the css with path of http://localhost:8080/myproject/test1/resources/css/header.css instead of http://localhost:8080/myproject/resources/css/header.css when test1 is calling.
So why the #RequestParam makes this difference?
Thank.

Answer 1

This is because the css is being loaded relative to the current URL.
For test1 you have a param which adds a slash after test1. Where as test2 doesn't have the param, so its relative to the parent directory.
You could try using absolute paths for the css.