在我的CakePHP项目中，我把所有的css和js文件放在'app/webroot'文件夹中，index.ctp加载了所有设计。但是add.ctp和edit.ctp文件在加载时没有css/js文件。/webroot'。
$this->layout = 'newlayout';
我把这段代码放在我的 andex（）、add（） 和 edit（） 操作中的"控制器"文件中。
我的新布局.ctp 文件代码是
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title><?php echo $title_for_layout; ?></title>
<!-- Tell the browser to be responsive to screen width -->
<meta content='width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no' name='viewport'>
<!-- Bootstrap 3.3.4 -->
<link href="bootstrap/css/bootstrap.min.css" rel="stylesheet" type="text/css" />
<!-- FontAwesome 4.3.0 -->
<link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.3.0/css/font-awesome.min.css" rel="stylesheet" type="text/css" />
<!-- Ionicons 2.0.0 -->
<link href="https://code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css" rel="stylesheet" type="text/css" />
<!-- Theme style -->
<link href="dist/css/AdminLTE.min.css" rel="stylesheet" type="text/css" />
<!-- AdminLTE Skins. Choose a skin from the css/skins
folder instead of downloading all of them to reduce the load. -->
<link href="dist/css/skins/_all-skins.min.css" rel="stylesheet" type="text/css" />
<!-- iCheck -->
<link href="plugins/iCheck/flat/blue.css" rel="stylesheet" type="text/css" />
<!-- Morris chart -->
<link href="plugins/morris/morris.css" rel="stylesheet" type="text/css" />
<!-- jvectormap -->
<link href="plugins/jvectormap/jquery-jvectormap-1.2.2.css" rel="stylesheet" type="text/css" />
<!-- Date Picker -->
<link href="plugins/datepicker/datepicker3.css" rel="stylesheet" type="text/css" />
<!-- Daterange picker -->
<link href="plugins/daterangepicker/daterangepicker-bs3.css" rel="stylesheet" type="text/css" />
<!-- bootstrap wysihtml5 - text editor -->
<link href="plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.min.css" rel="stylesheet" type="text/css" />
<!-- HTML5 Shim and Respond.js IE8 support of HTML5 elements and media queries -->
<!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
<!--[if lt IE 9]>
<script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
<script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
<![endif]-->
</head>
<body class="skin-blue sidebar-mini">
<div class="wrapper">
<header class="main-header">
<!-- Logo -->
<a href="#" class="logo">
<!-- mini logo for sidebar mini 50x50 pixels -->
<!-- logo for regular state and mobile devices -->
<span class="logo-lg"><b>POS</b> App</span>
</a>
<!-- Header Navbar: style can be found in header.less -->
<nav class="navbar navbar-static-top" role="navigation">
<!-- Sidebar toggle button-->
<a href="#" class="sidebar-toggle" data-toggle="offcanvas" role="button">
<span class="sr-only">Toggle navigation</span>
</a>
<div class="navbar-custom-menu">
<ul class="nav navbar-nav">
<!-- Messages: style can be found in dropdown.less-->
<!-- Notifications: style can be found in dropdown.less -->
<!-- Tasks: style can be found in dropdown.less -->
<!-- User Account: style can be found in dropdown.less -->
<!-- Control Sidebar Toggle Button -->
</ul>
</div>
</nav>
</header>
<!-- Left side column. contains the logo and sidebar -->
<aside class="main-sidebar">
<!-- sidebar: style can be found in sidebar.less -->
<section class="sidebar">
<!-- Sidebar user panel -->
<div class="user-panel">
</div>
<!-- sidebar menu: : style can be found in sidebar.less -->
</section>
<!-- /.sidebar -->
</aside>
<!-- Content Wrapper. Contains page content -->
<div class="content-wrapper">
<!-- Content Header (Page header) -->
<section class="content-header">
<h1>
<?php echo $this->Session->flash(); ?>
</h1>
<ol class="breadcrumb">
<li><a href="#"><i class="fa fa-dashboard"></i> Home</a></li>
<li class="active">Dashboard</li>
</ol>
</section>
<!-- Main content -->
<section class="content">
<?php echo $this->fetch('content'); ?>
</section><!-- /.content -->
</div><!-- /.content-wrapper -->
<footer class="main-footer">
<strong>Copyright © 2014-2015 .</strong> All rights reserved.
</footer>
<!-- Control Sidebar -->
<div class='control-sidebar-bg'></div>
</div><!-- ./wrapper -->
<!-- jQuery 2.1.4 -->
<script src="plugins/jQuery/jQuery-2.1.4.min.js"></script>
<!-- jQuery UI 1.11.4 -->
<script src="https://code.jquery.com/ui/1.11.4/jquery-ui.min.js" type="text/javascript"></script>
<!-- Resolve conflict in jQuery UI tooltip with Bootstrap tooltip -->
<script>
$.widget.bridge('uibutton', $.ui.button);
</script>
<!-- Bootstrap 3.3.2 JS -->
<script src="bootstrap/js/bootstrap.min.js" type="text/javascript"></script>
<!-- Morris.js charts -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/raphael/2.1.0/raphael-min.js"></script>
<script src="plugins/morris/morris.min.js" type="text/javascript"></script>
<!-- Sparkline -->
<script src="plugins/sparkline/jquery.sparkline.min.js" type="text/javascript"></script>
<!-- jvectormap -->
<script src="plugins/jvectormap/jquery-jvectormap-1.2.2.min.js" type="text/javascript"></script>
<script src="plugins/jvectormap/jquery-jvectormap-world-mill-en.js" type="text/javascript"></script>
<!-- jQuery Knob Chart -->
<script src="plugins/knob/jquery.knob.js" type="text/javascript"></script>
<!-- daterangepicker -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.10.2/moment.min.js" type="text/javascript"></script>
<script src="plugins/daterangepicker/daterangepicker.js" type="text/javascript"></script>
<!-- datepicker -->
<script src="plugins/datepicker/bootstrap-datepicker.js" type="text/javascript"></script>
<!-- Bootstrap WYSIHTML5 -->
<script src="plugins/bootstrap-wysihtml5/bootstrap3-wysihtml5.all.min.js" type="text/javascript"></script>
<!-- Slimscroll -->
<script src="plugins/slimScroll/jquery.slimscroll.min.js" type="text/javascript"></script>
<!-- FastClick -->
<script src='plugins/fastclick/fastclick.min.js'></script>
<!-- AdminLTE App -->
<script src="dist/js/app.min.js" type="text/javascript"></script>
<!-- AdminLTE dashboard demo (This is only for demo purposes) -->
<script src="dist/js/pages/dashboard.js" type="text/javascript"></script>
<!-- AdminLTE for demo purposes -->
<script src="dist/js/demo.js" type="text/javascript"></script>
</body>
</html>
我已经检查了"添加"页面加载的请求响应，并得到了此响应 -
The action bootstrap is not defined in controller
并且每个对 CSS 和 JS 文件的请求都得到了这种错误响应！我不知道！
你应该使用CakePHP Helper来包含资产文件（css，js等）。让我们看看如何使用包含 css 文件？
<head>
<?php echo $this->Html->css(array('forms', 'tables', 'menu')); ?>
// forms, tables, menu are the css file thoese are locate under app/webroot/css directory
</head>
在 CakePHP 2.x 上查看 HtmlHelper：：css
您描述的错误，
The action bootstrap is not defined in controller
。告诉您您尝试加载的操作/路由（bootstrap()）不是该控制器中的函数。
上述问题可能与加载引导程序无关。仔细检查您尝试访问的路由/URL。如果是http://example.com/controller/bootstrap则必须在该控制器中定义函数（操作）bootstrap()。
一旦处理完这个问题，你可以在GitHub上的这个应用程序的源代码中找到一个使用Twitter Bootstrap和CakePHP的工作示例，它为 stats.chrisvogt.me 提供支持。
在此示例中，我使用的是Bootstrap的托管版本，但是在它下面的行中，您会找到一个名为Jasny Bootstrap的扩展，该扩展位于./app/webroot/components/jasny-bootstrap/[...]jasny-bootstrap.min.css。
此外，如果您不想在每个操作中重复定义$this->layout：您可以使用 AppController 中的beforeFilter()为所有操作定义默认自定义布局，或者如果您愿意，可以在单个控制器中执行此操作。
虽然不是必需的，但我很喜欢使用 Bower 来管理我的前端组件（例如 Bootstrap）。如果您想对此进行研究，请确保在 ./webroot 下的某处定义自定义安装目录。