UrlController.java 文件源码

/**
 * Method associated to a tile and called immediately before the tile 
 * is included.  This implementation calls an <code>Action</code>. 
 * No servlet is set by this method.
 *
 * @param tileContext Current tile context.
 * @param request Current request.
 * @param response Current response.
 * @param servletContext Current servlet context.
 */
public void perform(
    ComponentContext tileContext,
    HttpServletRequest request,
    HttpServletResponse response,
    ServletContext servletContext)
    throws ServletException, IOException {

    RequestDispatcher rd = servletContext.getRequestDispatcher(url);
    if (rd == null) {
        throw new ServletException(
            "Controller can't find url '" + url + "'.");
    }

    rd.include(request, response);
}