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我是新来的铁路。我有我的控制器和视图设置。

当我查看我的 html 源代码时，我的身体是空的。我在我的控制器和我的视图中放置了一个调试器，它同时命中了两者，所以我知道它正在被执行。知道我做错了什么吗？我还安装了引导程序。

先感谢您。见下文。

class ListController < ApplicationController
  def recent
    @page_title = @head_title="Lists"
  end
end

最近的.html.erb

    <ul class="tabs">
  <li class="active"><a href="#">Lorem</a></li>
  <li><a href="#">Ipsum</a></li>
  <li><a href="#">Dolor</a></li>
  <li><a href="#">Sit</a></li>
  <li><a href="#">Amet</a></li>
</ul>

应用程序.html.erb

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title><%= content_for?(:title) ? yield(:title) : "Myapp" %></title>
    <meta name="description" content="">
    <meta name="author" content="">
    <%= stylesheet_link_tag    "application", :media => "all" %>
    <%= javascript_include_tag "application" %>
    <%= csrf_meta_tags %>
    <%= yield(:head) %>
  </head>

</html>

html源代码

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Myapp</title>
    <meta name="description" content="">
    <meta name="author" content="">
    <link href="/assets/application.css?body=1" media="all" rel="stylesheet" type="text/css" />
<link href="/assets/custom.css?body=1" media="all" rel="stylesheet" type="text/css" />
<link href="/assets/home.css?body=1" media="all" rel="stylesheet" type="text/css" />
<link href="/assets/twitter/bootstrap.css?body=1" media="all" rel="stylesheet" type="text/css" />
    <script src="/assets/jquery.js?body=1" type="text/javascript"></script>
<script src="/assets/jquery_ujs.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/alert.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/button.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/carousel.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/collapse.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/dropdown.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/modal.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/tooltip.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/popover.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/scrollspy.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/tab.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/transition.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap/typeahead.js?body=1" type="text/javascript"></script>
<script src="/assets/twitter/bootstrap.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-transition.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-alert.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-button.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-carousel.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-collapse.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-dropdown.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-modal.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-scrollspy.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-tab.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-tooltip.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-popover.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap-typeahead.js?body=1" type="text/javascript"></script>
<script src="/assets/bootstrap.js?body=1" type="text/javascript"></script>
<script src="/assets/application.js?body=1" type="text/javascript"></script>
    <meta content="authenticity_token" name="csrf-param" />
<meta content="7imEFVfD5bYIV7ZcK4181eCoz0pKxyyE2G+UFI46v5U=" name="csrf-token" />

  </head>

</html>

从服务器日志

2012 年 5 月 18 日星期五 17:54:57 -0700 开始 GET "/list/recent" for 127.0.0.1 由 ListController#recent 处理为 HTML 在布局/应用程序中呈现 list/recent.html.erb (0.8ms) 完成 200 OK在 17 毫秒内（查看：16.9 毫秒 | ActiveRecord：0.0 毫秒）

4

1 回答 1

4

嗯，您的 application.html.erb 文件中没有<body>标签或任何视图内容？:-)

尝试在你的之前添加这个</html>：

<body>
  <%= yield %>
</body>

没有yield参数的将从渲染视图中获取内容并将其吐出到您的应用程序布局中。

于 2012-05-19T01:46:15.200 回答