Django 分页器，get！ 在页面显示分页数据，需要用到Django分页器组件
先看效果图：
使用分页器需要导入模块
from django.core.paginator import PaginatorPaginator对象： paginator = Paginator(user_list, 10) # 传入分页数据，和展示的条数# per_page: 每页显示条目数量# count: 数据总个数# num_pages:总页数# page_range:总页数的索引范围，如: (1,10),(1,200)# page: page对象 page对象：page=paginator.page(1)# has_next 是否有下一页# next_page_number 下一页页码# has_previous 是否有上一页# previous_page_number 上一页页码# object_list 分页之后的数据列表# number 当前页# paginator paginator对象'''urls.py'''from django.contrib import adminfrom django.urls import pathfrom app01 import viewsurlpatterns = [ path('admin/', admin.site.urls), path('user_list/',views.user_page), path('delete/',views.delete),]'''views.py'''from django.core.paginator import Paginatorfrom django.shortcuts import render, redirectfrom app01 import modelsdef user_page(request): user_page_num = int(request.GET.get('page_num', 1)) # 用户不传页码默认为1 user_list = models.User.objects.all() # 获取所有数据 '''Paginator 对象''' # 实例化 paginator = Paginator(user_list, 10) # 分页的数据，每页显示十行 # print(paginator.count) # 总条数 500 # print(paginator.num_pages) # 总页数 50 # print(paginator.per_page) # 每页显示条数 10 # print(paginator.page_range) # 生成器，next拿一页 range(1,51) # print(paginator.page(1)) # page(1)第一页，()内写几可以拿到的页 # 判断页码数和11的关系，布局 '''Page对象''' try: page = paginator.page(user_page_num) # 获取当前页 # print(page.has_next()) # 判断有没有下一页 True # print(page.next_page_number()) # 下一页页码数 3 # print(page.has_previous()) # 判断有没有上一页 True # print(page.previous_page_number()) # 上一页页码 1 # print(paginator.object_list) # 获取该页的所有数据的对象 except Exception as e: user_page_num = paginator.num_pages # 如果没有搜索页设置默认数显示最后一页 page = paginator.page(user_page_num) # 没有搜索页显示最后一页 # print(page.number) # 获取当前页码 2 if paginator.num_pages > 11: # 开头的判断，如果当前页-5小于1，那么显示1，12 if user_page_num - 5 < 1: page_range = range(1, 12) # 末尾的判断，如果当前页+5大于总页码数，回退11 elif user_page_num + 5 > paginator.num_pages: page_range = range(paginator.num_pages - 10, paginator.num_pages + 1) # 中间当前页-5，+6 else: page_range = range(user_page_num - 5, user_page_num + 6) else: page_range = paginator.page_range # 如果小于11那么就显示少有的对象 return render(request, 'user_page.html', locals())def delete(request): del_id = request.GET.get('del_id') # is_delete = 0 models.User.objects.filter(pk=del_id).delete() # models.User.objects.filter(pk=del_id).update(is_delete=1) import time time.sleep(3) return redirect('/user_list/')<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>Title</title> <script src="https://cdn.bootcdn.net/ajax/libs/jquery/3.4.1/jquery.min.js"></script> <link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/css/bootstrap.min.css" rel="stylesheet"> <script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/3.4.1/js/bootstrap.min.js"></script> <script src="https://unpkg.com/sweetalert/dist/sweetalert.min.js"></script></head><body>{#数据#}<div ><h1 >Uesr-Info</h1> <div > <div > <div> <table > <thead> <tr> <th>id</th> <th>name</th> <th>phone</th> <th>address</th> <th>action</th> </tr> </thead> <tbody> {# 获取当前页的所有对象 #} {% for user in page.object_list %} <tr> <td>{{ user.id }}</td> <td>{{ user.name }}</td> <td>{{ user.phone }}</td> <td>{{ user.address }}</td> <td ><a href="/delete/?del_id={{ user.id }}" id="del">删除</a> </td> </tr> {% endfor %} </tbody> </table> </div> </div> </div></div>{#分页#}<nav aria-label="Page navigation" > <ul > {# 判断是否有上一页 #} {% if page.has_previous %} <li> <a href="/user_list/?page_num={{ page.previous_page_number }}" aria-label="Previous"> <span aria-hidden="true">«</span> </a> </li> {% else %} <li > <a href="" aria-label="Previous"> <span aria-hidden="true">«</span> </a> </li> {% endif %} {# for循环拿到页码数 #} {% for foo in page_range %} {% if user_page_num == foo %} <li ><a href="/user_list/?page_num={{ foo }}">{{ foo }}</a></li> {% else %} <li><a href="/user_list/?page_num={{ foo }}">{{ foo }}</a></li> {% endif %} {% endfor %} {# 判断是否有下一页 #} {% if page.has_next %} <li> <a href="/user_list/?page_num={{ page.next_page_number }}" aria-label="Next"> <span aria-hidden="true">»</span> </a> </li> {% else %} <li > <a href="" aria-label="Next"> <span aria-hidden="true">»</span> </a> </li> {% endif %} </ul></nav></body><script> $('#del').click(function () { swal({ title: "确定要删除吗?", text: "删除一条数据", icon: "warning", buttons: true, dangerMode: true, }) .then((willDelete) => { if (willDelete) { swal("删除成功", { icon: "success", }); } else { swal("取消删除"); } }); })</script></html>class Pagination(object): def __init__(self, current_page, all_count, per_page_num=2, pager_count=5): """ 封装分页相关数据 :param current_page: 当前页 :param all_count: 数据库中的数据总条数 :param per_page_num: 每页显示的数据条数 :param pager_count: 最多显示的页码个数 """ try: current_page = int(current_page) except Exception as e: current_page = 1 if current_page < 1: current_page = 1 self.current_page = current_page self.all_count = all_count self.per_page_num = per_page_num # 总页码 all_pager, tmp = divmod(all_count, per_page_num) if tmp: all_pager += 1 self.all_pager = all_pager self.pager_count = pager_count self.pager_count_half = int((pager_count - 1) / 2) @property def start(self): return (self.current_page - 1) * self.per_page_num @property def end(self): return self.current_page * self.per_page_num def page_html(self): # 如果总页码 < 11个： if self.all_pager <= self.pager_count: pager_start = 1 pager_end = self.all_pager + 1 # 总页码 > 11 else: # 当前页如果<=页面上最多显示11/2个页码 if self.current_page <= self.pager_count_half: pager_start = 1 pager_end = self.pager_count + 1 # 当前页大于5 else: # 页码翻到最后 if (self.current_page + self.pager_count_half) > self.all_pager: pager_end = self.all_pager + 1 pager_start = self.all_pager - self.pager_count + 1 else: pager_start = self.current_page - self.pager_count_half pager_end = self.current_page + self.pager_count_half + 1 page_html_list = [] # 添加前面的nav和ul标签 page_html_list.append(''' <nav aria-label='Page navigation>' <ul class='pagination'> ''') first_page = '<li><a href="?page=%s">首页</a></li>' % (1) page_html_list.append(first_page) if self.current_page <= 1: prev_page = '<li ><a href="#">上一页</a></li>' else: prev_page = '<li><a href="?page=%s">上一页</a></li>' % (self.current_page - 1,) page_html_list.append(prev_page) for i in range(pager_start, pager_end): if i == self.current_page: temp = '<li ><a href="?page=%s">%s</a></li>' % (i, i,) else: temp = '<li><a href="?page=%s">%s</a></li>' % (i, i,) page_html_list.append(temp) if self.current_page >= self.all_pager: next_page = '<li ><a href="#">下一页</a></li>' else: next_page = '<li><a href="?page=%s">下一页</a></li>' % (self.current_page + 1,) page_html_list.append(next_page) last_page = '<li><a href="?page=%s">尾页</a></li>' % (self.all_pager,) page_html_list.append(last_page) # 尾部添加标签 page_html_list.append(''' </nav> </ul> ''') return ''.join(page_html_list)