public ServletDispatcherResult() 
{
        super();
}

 public ServletDispatcherResult(String location) 
{
        super(location);
}

 public  void doExecute(String finalLocation,
    ActionInvocation invocation) throws Exception 
{
        if (LOG.isDebugEnabled()) {
            LOG.debug("Forwarding to location " + finalLocation);
        }
        PageContext pageContext = ServletActionContext.getPageContext();
        if (pageContext != null) {
            pageContext.include(finalLocation);
        } else {
            HttpServletRequest request = ServletActionContext.getRequest();
            HttpServletResponse response = ServletActionContext.getResponse();
            RequestDispatcher dispatcher = request.getRequestDispatcher(finalLocation);
            //add parameters passed on the location to #parameters
            // see WW-2120
            if (invocation != null && finalLocation != null && finalLocation.length()  > 0
                    && finalLocation.indexOf("?")  > 0) {
                String queryString = finalLocation.substring(finalLocation.indexOf("?") + 1);
                Map parameters = (Map) invocation.getInvocationContext().getContextMap().get("parameters");
                Map queryParams = UrlHelper.parseQueryString(queryString, true);
                if (queryParams != null && !queryParams.isEmpty())
                    parameters.putAll(queryParams);
            }
            // if the view doesn't exist, let's do a 404
            if (dispatcher == null) {
                response.sendError(404, "result '" + finalLocation + "' not found");
                return;
            }
            // If we're included, then include the view
            // Otherwise do forward
            // This allow the page to, for example, set content type
            if (!response.isCommitted() && (request.getAttribute("javax.servlet.include.servlet_path") == null)) {
                request.setAttribute("struts.view_uri", finalLocation);
                request.setAttribute("struts.request_uri", request.getRequestURI());
                dispatcher.forward(request, response);
            } else {
                dispatcher.include(request, response);
            }
        }
}

Dispatches to the given location. Does its forward via a RequestDispatcher. If the dispatch fails a 404 error will be sent back in the http response.