django提供了一个新的类来帮助管理分页数据，这个类存放在django/core/paginator.py.它可以接收列表、元组或其它可迭代的对象。本文将分三步介绍django paginator 分页的实现步骤
一、通过模型创建subject
django models
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from django.db import models
class subject(models.model):
"""学科""”
no = models.autofield(primary_key=true, verbose_name="编号")
name = models.charfield(max_length=31, verbose_name="名称")
intro = models.charfield(max_length=511, verbose_name="介绍")
def __str__(self):
return self.name
class meta:
db_table = 'tb_subject' verbose_name_plural = "学科"
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二、通过view模块，要呈现到前端的数据
django view 的配置
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from django.shortcuts import render
from django.core.paginator import paginator, invalidpage, emptypage, pagenotaninteger
from vote.models import subject
def show_subject(request):
"""查询学科"""
#查询subject 表的所有数据
subjects = subject.objects.all().order_by("no”)
#使用paginator模块对数据分页，一页5条数据
paginator = paginator(subjects, 5)
#使用request.get.get()函数获取uri中的page参数的数值
page = request.get.get('page')
try:
#通过获取上面的page参数，查询此page是否为整数并且是否可用
subject_obj = paginator.page(page)
except pagenotaninteger:
subject_obj = paginator.page(1)
except (emptypage, invalidpage):
subject_obj = paginator.page(paginator.num_pages)
return render(request, "vote/subject.html", {'subject_list': subject_obj})
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三、将view中的数据渲染到前端模版上
前端分页代码块：
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<div class="pull-right" style="margin-right: 480px;margin-top: 0px”>
<!— 分页功能-->
<nav>
<ul class="pagination”>
<!— 分页功能前端的方向箭头代码-->
{% if subject_list.has_previous %}
<li class="enabled">
<a href="?page={{ subject_list.previous_page_number }}" rel="external nofollow" aria-label="previous">
<span aria-hidden="true">«</span>
</a>
</li>
{% endif %}
<!— 分页功能显示页码的中间部分代码-->
{% for page_num in subject_list.paginator.page_range %}
{% if page_num == subject_list.number %}
<li class="active">
<a href="#" rel="external nofollow" >
{{ page_num }}
<span class="sr-only">(current)</span>
</a>
</li>
{% else %}
<li>
<a href="?page={{ page_num }}" rel="external nofollow" >{{ page_num }}
<span class="sr-only">(current)</span>
</a>
</li>
{% endif %}
{% endfor %}
<!— 分页功能末端的方向箭头代码-->
{% if subject_list.has_next %}
<li class="enabled">
<a href="?page={{ subject_list.next_page_number }}" rel="external nofollow" aria-label="last">
<span aria-hidden="true">»</span>
</a>
</li>
{% endif %}
</ul>
</nav>
</div>
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四、最终显示效果
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持服务器之家。
原文链接：https://segmentfault.com/a/1190000019441086