Django框架实现的简单分页功能示例

来源：jb51　　时间：2018/12/5 9:22:41　　对本文有异议

本文实例讲述了Django框架实现的简单分页功能。分享给大家供大家参考，具体如下：

前面一篇《Django开发的简易留言板》写了个简单的留言板，如果数据量太多的话在一页显示就不那么友好了，本文就是做一个分页显示。

代码在上一篇的基础上修改。

导入分页模块并修改views

#只需修改index函数即可
from django.core.paginator import Paginator
def index(request):
  messages = models.Message.objects.all() #获取全部数据
  limit = 10
  paginator = Paginator(messages, limit) #按每页10条分页
  page = request.GET.get('page','1') #默认跳转到第一页
  result = paginator.page(page)
  return render(request, 'guestbook/index.html', {'messages' : result})

修改html

<!DOCTYPE html>
<html>
  <head>
    <meta charset="utf-8" />
    <title>留言板</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="external nofollow" crossorigin="anonymous">
  </head>
  <body>
    <table class="table table-striped table-bordered table-hover table-condensed">
      <thead>
        <tr class="danger">
          <th>留言时间</th>
          <th>留言者</th>
          <th>标题</th>
          <th>内容</th>
        </tr>
      </thead>
      <tbody>
        {% if messages %}
          {% for message in messages %}
            <tr class="{% cycle 'active' 'success' 'warning' 'info' %}">
              <td>{{ message.publish|date:'Y-m-d H:i:s' }}</td>
              <td>{{ message.username }}</td>
              <td>{{ message.title }}</td>
              <td>{{ message.content }}</td>
            </tr>
          {% endfor %}
        {% else %}
          <tr>
            <td colspan="4">无数据</td>
          </tr>
        {% endif %}
      </tbody>
    </table>
    <!-- 分页开始 -->
    <div>
      <ul class="pagination">
      <li><a href="/guestbook/index/?page=1" rel="external nofollow" >首页</a></li>
         {% if messages.has_previous %}
            <li><a href="/guestbook/index/?page={{ messages.previous_page_number }}" rel="external nofollow" >上一页</a></li>
        {% endif %}
         {% for num in messages.paginator.page_range %}
          <li><a href="/guestbook/index/?page={{ num }}" rel="external nofollow" >{{ num }}</a></li>
         {% endfor %}
        {% if messages.has_next %}
           <li><a href="/guestbook/index/?page={{ messages.next_page_number }}" rel="external nofollow" >下一页</a></li>
        {% endif %}
        <li><a href="/guestbook/index/?page={{ messages.paginator.num_pages }}" rel="external nofollow" >尾页</a></li>
       </ul>
    </div>
    <!-- 分页结束 -->
    <div>
       <a class="btn btn-xs btn-primary" href="/guestbook/create/" rel="external nofollow" >去留言</a>
    </div>
  </body>
</html>