全都无法跳转

if(action.equals("add")){

if( addToCart(request, response)){

request.getRequestDispatcher("/Success.jsp").forward(request, response);

}else{

request.getRequestDispatcher("/Faile.jsp").forward(request, response);

}

}

if(action.equals("show")){

request.getRequestDispatcher("/index.jsp").forward(request, response);

}