protected void doGet(HttpServletRequest request,
            HttpServletResponse response) throws ServletException, IOException {
        // 设置编码
        request.setCharacterEncoding("UTF-8");
        // 接收页面的值
        String id = request.getParameter("id");
        MaintainService maintainService = new MaintainService();
        maintainService.deleteOne(id);
        // 向页面跳转

        String command = request.getParameter("command");
        String description = request.getParameter("description");
        request.setAttribute("command", command);
        request.setAttribute("description", description);
        ListService listService = new ListService();
        // 查询消息列表并传给页面
        request.setAttribute("messageList",listService.queryMessageList(command, description));
        request.getRequestDispatcher("/List.action").forward(request, response);
    }

<a></a>点击不能触发上面搜索栏的提交吧？