在我们做Django项目，数据量比较大的时候，我们需要分页器（paginator）来做分页显示，效果如下
实现方法如下：
在视图函数views.py中，引入Paginator
1 from django.core.paginator import Paginator
首先在这里说一下分页器的主要方法：
1 1.整个数据表 2 paginator.count 数据总数 3 paginator.num_pages 总页数 4 paginator.page_range 页码的列表 5 2.当前页 6 curuent_page.has_next() 是否有下一页 7 curuent_page.next_page_number() 下一页的页码 8 curuent_page.has_previous() 是否有上一页 9 curuent_page.previous_page_number() 上一页的页码
下面是具体实现的代码：
1.views.py
1 from django.shortcuts import render,HttpResponse,redirect 2 3 from app01.models import * #应用数据库表 4 from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger #导入分页器 5 6 def demo(requerst): 7 8 book_list = Book.objects.all() #获取所有的数据 9 10 paginator = Paginator(book_list,3)#分别是需要分页的数据 和多少行数据为一页 11 pag_num = paginator.num_pages#获取整个表的总页数 12 curuent_page_num = int(requerst.GET.get('page',1))#获取当前页数,默认为1 13 curuent_page = paginator.page(curuent_page_num)#获取当前页的数据 14 15 16 if pag_num<11:#判断当前页是否小于11个 17 pag_range = paginator.page_range 18 elif pag_num>11: 19 if curuent_page_num<6: 20 pag_range = range(1,11) 21 elif curuent_page_num>(paginator.num_pages)-5: 22 pag_range = range(pag_num-9, pag_num+1) 23 else: 24 pag_range = range(curuent_page_num-5,curuent_page_num+5) #当前页+5大于最大页数时 25 26 27 28 29 return render(requerst,"demo.html",{'book_list' :book_list,"pagintor" : paginator,"current_Page":curuent_page,"current_Page_num":curuent_page_num,"pag_range":pag_range})
2.demo.html
1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>分页器</title> 6 <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">#引入bootstrap 7 8 </head> 9 <body style="margin-top: 100px"> 10 <div class="container"> 11 <div class="row"> 12 <div class="col-xs-6 col-xs-offset-3 col-md-6 col-md-offset-3"> 13 <div class="panel panel-default"> 14 <!-- Table --> 15 <table class="table table-striped table-bordered table-hover"> 16 <thead> 17 <tr> 18 <th>书籍编号</th> 19 <th>书籍名称</th> 20 <th>书籍价格</th> 21 </tr> 22 </thead> 23 <tbody> 24 {% for book in current_Page %} 25 <tr> 26 <td>{{ book.pk }}</td> 27 <td>{{ book.title }}</td> 28 <td>{{ book.price }}</td> 29 </tr> 30 {% endfor %} 31 32 </tbody> 33 </table> 34 </div> 35 36 37 <div> 38 <nav aria-label="Page navigation"> 39 <ul class="pagination"> 40 {% if not current_Page.has_previous %}<!--判断是否有上一页--> 41 <li class="disable"> 42 <a href="#" aria-label="Previous"> 43 <span aria-hidden="true">上一页</span> 44 </a> 45 </li> 46 {% else %} 47 <li> 48 <a href="?page={{ current_Page.previous_page_number }}" aria-label="Previous"> 49 <span aria-hidden="true">上一页</span> 50 </a> 51 </li> 52 {% endif %} 53 54 {% for page_range in pag_range %} 55 {% if current_Page_num == page_range %}<!--判断遍历的页数是否为当前页，是就添加.avtive 背景色变蓝--> 56 <li class="active"><a href="?page={{ page_range }}">{{ page_range }}</a></li> 57 {% else %} 58 <li><a href="?page={{ page_range }}">{{ page_range }}</a></li> 59 {% endif %} 60 {% endfor %} 61 62 {% if not current_Page.has_next %}<!-- 判断是否最后一页 --> 63 <li class="disable"> 64 <a href="?page={{ current_Page_num }}" aria-label="Next"> 65 <span aria-hidden="true">下一页</span> 66 </a> 67 </li> 68 {% else %} 69 <li> 70 <a href="?page={{ current_Page.next_page_number }}" aria-label="Next"> 71 <span aria-hidden="true">下一页</span> 72 </a> 73 </li> 74 {% endif %} 75 76 </ul> 77 </nav> 78 </div> 79 </div> 80 </div> 81 </div> 82 </body> 83 </html>
最后，把路由转换设置正确，即可
例如：
1 path('demo/',views.demo)
分页器就这样完成了！！！