Exporting to CSV in SEAM

[felixk2]

I'm trying to export some data to CSV in SEAM. It's pretty easy to do. I just have a view with:

<ui:composition xmlns="http://www.w3.org/1999/xhtml"
                xmlns:s="http://jboss.com/products/seam/taglib"
                xmlns:ui="http://java.sun.com/jsf/facelets"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:rich="http://richfaces.org/rich"
                xmlns:a="http://richfaces.org/a4j"> 
     <f:view contentType="text/csv">
          csv stuff goes here
     </f:view>
</ui:composition>

My problem is that when I view the .seam page in Firefox, it doesn't recognize that it's a CSV. It sees the SEAM extension and uses my OS default for opening up .seam files.

Anyone have any ideas how I can solve this problem?

Thanks,
Felix

[jimk1723]

Can you add a servlet mapping in your web.xml?

   <servlet-mapping>
      <servlet-name>Faces Servlet</servlet-name>
      <url-pattern>yourfile.csv</url-pattern>
   </servlet-mapping>

Where your JSF view is yourfile.xhtml.

If you need to change the mime type for that extension, look at server/default/deploy/jboss-web.deployer/conf/web.xml; all of th default mime-types are in there.

[srini.ragu]

You may need to set the 'Content-Disposition'  header field with value "inline;filename=hello.csv"

Or have a separate view with url mapped as mentioned above.

[felixk2]

Thank you. Your suggestions worked perfectly. One more thing:

Any idea how I can stick a newline into my view? When I try

\n

it puts the literal text into my output.

Thanks,
Felix

[alteskind]

Hi! I have the following view:

<ui:composition xmlns="http://www.w3.org/1999/xhtml"

                xmlns:s="http://jboss.com/products/seam/taglib"

                xmlns:ui="http://java.sun.com/jsf/facelets"

                xmlns:f="http://java.sun.com/jsf/core"

                xmlns:h="http://java.sun.com/jsf/html"

                xmlns:rich="http://richfaces.org/rich"

                xmlns:a="http://richfaces.org/a4j"> 

     <f:view contentType="text/csv">

          12, 323, 43, 76, 32, 62, 73, 38

     </f:view>

</ui:composition>

Where do I have to set the Content-Disposition header field?

Thanks a lot!

[jeffchiu]

I know this issue is old but in case anyone stumbles across this page, here's a way to send the HTTP header from JSF. First, create a method in the action to set the header on the response:

public void httpHeadersForCSV() {
  HttpServletResponse response = (HttpServletResponse) facesContext.getExternalContext().getResponse();
  response.setHeader("Content-disposition", "attachment;filename=data.csv");
}

Then, to call it from JSF pages, I added the following entry in pages.xml. The action gets called before the page is rendered, according to the seam docs.

<page view-id="/generate_csv.xhtml" action="#{action.httpHeadersForCSV}"/>

Not sure if this is the best way to do it, but it is fairly clean and works.