Content-type in AjaxTilesView not set

[kareltejnora]

Hi,
I use Spring Webflow 2.0.6 with Spring Framework 2.5.6 - After a 2 weeks I have working fragments rendering, but the response from server has no Content-type. I believe when the whole page is rendered tiles takes care about setting response content-type according JSP page, but in AjaxTilesView#renderMergedOutputModel call "container.render(attributeToRender, response.getWriter(), new Object[] { request, response });" doesn't set content-type to response.
So my Czech letters are just ? in FF.
I did quick dirty fix:

public class FixFlowAjaxTilesView extends org.springframework.webflow.mvc.view.FlowAjaxTilesView
{

    public FixFlowAjaxTilesView()
    {
        super();
    }

    /* (non-Javadoc)
     * @see org.springframework.js.ajax.tiles2.AjaxTilesView#renderMergedOutputModel(java.util.Map, javax.servlet.http.HttpServletRequest, javax.servlet.http.HttpServletResponse)
     */
    @SuppressWarnings("unchecked")
    @Override
    protected void renderMergedOutputModel(Map model, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        if (getAjaxHandler().isAjaxRequest(request, response)) 
        {
            response.setContentType(getContentType());
            //response.setCharacterEncoding(arg0)
        }
        super.renderMergedOutputModel(model, request, response);
    }
    
    

}

Not sure if that's the right thing to do. Is this a bug or Did I something wrong?

[jeremyg484]

I agree, we should probably go ahead and set the content type in the TilesAjaxView on an Ajax request.

In the meantime, have you tried using Spring's CharacterEncodingFilter?
http://static.springframework.org/sp...ingFilter.html

[kareltejnora]

Well the encoding is right (everything is UTF-8). Thanks for the filter - next piece of my own class is replaced by spring one.

As far as I understand HTTP if there is no content-type specified in response the "HTTP default" is used ("text/html; charset=ISO-8859-1"). I think FF takes Ajax-Fragment as ISO-8859-1 and when it renders the chars are broken.
Anyway setting content-type solves it. In my enviroment it's "text/html;charset=UTF-8".

As I found the difference btw.
org.springframework.web.servlet.view.tiles2.TilesV iew#renderMergedOutputModel
and
AjaxTilesView
is in invoking method:

TilesView#container.render(getUrl(), new Object[] {request, response});
where render fills response._contentType

AjaxTilesView#container.render(attributeToRender, response.getWriter(), new Object[] { request, response });
where render doesn't fill anything. I know there is no method available for ajax response.

But regarding Tiles 2.1 doc container.render(attributeToRender, response.getWriter(), new Object[] { request, response });
is deprecated and will be not evaluated.
Thus solved by Tiles. Well it should be cause f.e. jsp can render different content-type (thinking directly JSON

So maybe worth a note when integrating Tiles 2.1?

[marcelstoer]

We resorted to the same work-around as the OP.

I agree, we should probably go ahead and set the content type in the TilesAjaxView on an Ajax request.

Yes, I also believe you should. However, seeing at https://fisheye.springsource.org/changelog/spring-js that there hasn't been any activity on spring-js for a year I don't have much hope.
Is spring-js dead? I believe that more than two years ago I read somewhere that it should become it's own top level project?

Cheers,