Accessing HTTP Request Information

[Dan Olsen]

In the doView function I need to be able to access the HTTP header information. 
In the JSP I can do something like this: ${request.getHeader("zip")}
 
However, I don't have the same request object. I have the RenderRequest instead 
of the HTTP request. Any ideas on how to get a hold of the HTTP headers in the 
doView function?
 
- Dan