Java EE (Java Enterprise Edition) General Discussion

I would like to redirect to an external URL (something like http://www.google.com) when the user pushes a button.

I can change this to link if I have to, but I would like to keep it as a button to be consistent with other parts of the application.

Any suggestions or links to references?
Thanks.

I tried using things like:

            FacesContext context = FacesContext.getCurrentInstance();
            HttpServletResponse response = (HttpServletResponse)context.getExternalContext().getResponse();
            response.sendRedirect(sb1.getGoToURL());

but that gives me a page error:

Description: An unhandled exception occurred during the execution of the web application. Please review the following stack trace for more information regarding the error. 

Exception Details: java.lang.IllegalStateException 
  PWC1227: Cannot forward after response has been committed

Possible Source of Error: 
   Class Name: org.apache.catalina.core.ApplicationDispatcher 
   File Name: ApplicationDispatcher.java 
   Method Name: doForward 
   Line Number: 400 

Source not available. Information regarding the location of the exception can be identified using the exception stack trace below. 
 

Stack Trace: 

org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:400)
org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:382)
com.sun.faces.context.ExternalContextImpl.dispatch(ExternalContextImpl.java:408)
com.sun.faces.application.ViewHandlerImpl.executePageToBuildView(ViewHandlerImpl.java:442)
 <...snip...>