Display web request attributes and parameters

To display the list of attributes and parameters that are linked to a http request in a jsp page.

Enumeration attrEnum = request.getAttributeNames(); 
while(attrEnum.hasMoreElements()) 
{       
        Object attr = attrEnum.nextElement(); 
        System.out.println("Attr "+(String)attr+" : "+request.getAttribute((String)attr)); 
}

Enumeration paramEnum = request.getParameterNames(); 
while(paramEnum.hasMoreElements()) 
{       
        Object attr = paramEnum.nextElement(); 
        System.out.println("Param "+(String)attr+" : "+request.getParameter((String)attr)); 
}