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

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"

二、通过view模块，要呈现到前端的数据

Django view 的配置

from django.shortcuts import renderfrom django.core.paginator import Paginator, InvalidPage, EmptyPage, PageNotAnIntegerfrom vote.models import Subjectdef 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})

三、将view中的数据渲染到前端模版上

前端分页代码块：

<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">&laquo;</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">&raquo;</span> </a> </li> {% endif %} </ul> </nav></div>

四、最终显示效果

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