python操作三大主流数据库(5)python操作mysql⑤使用Jinja2模板提取优化页面展示

python操作mysql⑤使用Jinja2模板提取优化页面展示

在templates目录下的index.html、cat.html等页面有一些共同的元素，代码比较冗余
可以使用模板提取公共代码，在各网页中集成模板即可，这样会是代码看起来更加优雅

1.模板页面home_base.html

<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="UTF-8">

  <link rel="stylesheet" href="{{ url_for('static', filename='bootstrap-3.3.7-dist/css/bootstrap.min.css')}}">

  <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='main.css')}}">

  <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='datatables.min.css')}}">

  <script type="text/javascript" src="{{ url_for('static', filename='jquery-3.3.1.min.js')}}"></script>

  <script type="text/javascript">

        $(document).ready(function() {

            $('#example').DataTable();

        } );

  </script>

  {% block head %}

  <title>首页</title>

  {% endblock %}

</head>

<body>

<div class="container">

    <h1>新闻列表</h1>

  <nav class="navbar navbar-inverse">

      <!-- 页面头部 -->

      <div class="navbar-header">

          <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar-menu" aria-expanded="false">

              <span class="sr-only">Toggle navigation</span>

              <span class="icon-bar"></span>

              <span class="icon-bar"></span>

              <span class="icon-bar"></span>

          </button>

      </div>

      <div id="navbar-menu" class="collapse navbar-collapse">

          <ul class="nav navbar-nav">

              <li class="active"><a href="/">首页</a></li>

              <li><a href="{{url_for('cat', name='推荐')}}">推荐</a></li>

              <li><a href="{{url_for('cat', name='百家')}}">百家</a></li>

              <li><a href="{{url_for('cat', name='推荐')}}">本地</a></li>

              <li><a href="{{url_for('cat', name='图片')}}">图片</a></li>

          </ul>

      </div>

  </nav>

<!-- 新闻内容部分 -->

{% block content %}

<!-- 内容区域 -->

{% endblock %}

</div>

{% block extrajs %}

<!-- 其他脚本 -->

{% endblock %}

</body>

</html>

2.首页index.html

{% extends 'home_base.html' %}

{% block content%}

<div id="content" class="row-fluid">

        <div class="col-md-12">

        <table id="example" class="table table-striped table-bordered" cellspacing="0" width="100%">

        <thead>

            <tr>

                <th>图片</th>

                <th>简介</th>

            </tr>

        </thead>

        <tfoot>

            <tr>

                <th>Name</th>

                <th>Position</th>

            </tr>

        </tfoot>

        <tbody>

        {% for obj in news_list %}

        <tr>

              <td>

              <img width=120 height=60 src="{{ obj.image }}" alt="图片">

              </td>

              <td>

              <p>

                <a href="{{ url_for('detail', pk=obj.id) }}">{{ obj.title }}</a>

                <small>{{ obj.created_at }}</small>

              </p>

              </td>

        </tr>

        {% endfor %}

        </tbody>

        </table>

        </div>

</div>

</div>

{% endblock %}

{% block extrajs %}

<script type="text/javascript" src="{{ url_for('static', filename = 'datatables.min.js')}}"></script>

{% endblock %}

3.详情页detail.html

{% extends 'home_base.html' %}

  {% block head %}

  <title>新闻详情</title>

  {% endblock %}

{% block content%}

<div id="content" class="row-fluid">

        <div class="col-md-9">

            <h2>新闻详情，来自新闻id> {{obj.id}}</h2>

        </div>

         <div class="col-md-12">

        <table id="example" class="table table-striped table-bordered" cellspacing="0" width="100%">

        <thead>

            <tr>

                <th>具体新闻内容</th>

            </tr>

        </thead>

        <tbody>

        <tr>

              <td>

              <img width=600 height=500 src="{{ obj.image }}" alt="图片">

              </td>

              <td>

        </tr>

        <tr>

              <td>

              <p>

                {{ obj.title }}

                <small>{{ obj.created_at }}</small>

              </p>

              </td>

        </tr>

        </tbody>

        </table>

        </div>

</div>

</div>

{% endblock %}

</body>

</html>

4.专栏页面cat.html

{% extends 'home_base.html' %}

{% block head%}

<title>{{ name }}</title>

{% endblock %}

{% block content%}

<div id="content" class="row-fluid">

        <div class="col-md-12">

        <table id="example" class="table table-striped table-bordered" cellspacing="0" width="100%">

        <thead>

            <tr>

                <th>图片</th>

                <th>简介</th>

            </tr>

        </thead>

        <tfoot>

            <tr>

                <th>Name</th>

                <th>Position</th>

            </tr>

        </tfoot>

        <tbody>

        {% for obj in news_list %}

        <tr>

              <td>

              <img width=120 height=60 src="{{ obj.image }}" alt="图片">

              </td>

              <td>

              <p>

                <a href="{{ url_for('detail', pk=obj.id) }}">{{ obj.title }}</a>

                <small>{{ obj.created_at }}</small>

              </p>

              </td>

        </tr>

        {% endfor %}

        </tbody>

        </table>

        </div>

</div>

</div>

{% endblock %}

{% block extrajs %}

<script type="text/javascript" src="{{ url_for('static', filename = 'datatables.min.js')}}"></script>

{% endblock %}

可以看到页面能够正常加载共用的js和css库文件

巴特西

python操作三大主流数据库(5)python操作mysql⑤使用Jinja2模板提取优化页面展示

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