我有以下问题：我正在尝试将请求从servlet转发到jsp页面，但得到了404。当我直接访问/sites/home.jsp时，它将加载jsp。

    WebAppContext sites = new WebAppContext("src/com/example/blub/server/sites", "/sites");
    ServletContextHandler weblet = new ServletContextHandler(ServletContextHandler.SESSIONS);
    weblet.setContextPath("/");
    weblet.addServlet(new ServletHolder(new Weblet()), "/home");
    HandlerList handlers = new HandlerList();
    handlers.setHandlers(new Handler[] {sites, weblet});
    server.setHandler(handlers);

。

public void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    req.getRequestDispatcher("/sites/home.jsp").forward(req, resp);
}