view部分:
from django.shortcuts import render,HttpResponse # Create your views here. from app01.models import * from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger def index(request): ''' 批量导入数据: Booklist=[] for i in range(100): Booklist.append(Book(title="book"+str(i),price=30+i*i)) Book.objects.bulk_create(Booklist) ''' ''' 分页器的使用: book_list=Book.objects.all() paginator = Paginator(book_list, 10) print("count:",paginator.count) #数据总数 print("num_pages",paginator.num_pages) #总页数 print("page_range",paginator.page_range) #页码的列表 page1=paginator.page(1) #第1页的page对象 for i in page1: #遍历第1页的所有数据对象 print(i) print(page1.object_list) #第1页的所有数据 page2=paginator.page(2) print(page2.has_next()) #是否有下一页 print(page2.next_page_number()) #下一页的页码 print(page2.has_previous()) #是否有上一页 print(page2.previous_page_number()) #上一页的页码 # 抛错 #page=paginator.page(12) # error:EmptyPage #page=paginator.page("z") # error:PageNotAnInteger ''' book_list=Book.objects.all() #获取数据库中的所有数据 paginator = Paginator(book_list, 10) #设置一页显示10条数据 page = request.GET.get('page',1) #获取当前页数 currentPage=int(page) #转换为数字类型,方便使用 strat_num = (current_page_num - 1) * 10 #如果页面数据有序号的话,序号也要分页显示,一起传给前端,然后{{ forloop.counter|add:strat }}就可以了 try: print(page) book_list = paginator.page(page) except PageNotAnInteger: book_list = paginator.page(1) except EmptyPage: book_list = paginator.page(paginator.num_pages) return render(request,"index.html",{"book_list":book_list,"paginator":paginator,"currentPage":currentPage})
前端:
<!DOCTYPE html> <html lang="zh-CN"> <head> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <title>查看书籍</title> <link href="/static/bootstrap-3.3.7-dist/css/bootstrap.css" rel="stylesheet"> <script src="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script> <style> .container { margin-top: 50px; } </style> </head> <body> <h3>查看书籍</h3> <div class="container"> <div class="row"> <div class="col-md-8 col-md-offset-2"> <table class="table table-hover table-striped"> <a href="{% url 'addbook' %}" class="btn btn-warning">添加书籍</a> <thead> <tr> <th>编号</th> <th>书籍名称</th> <th>价格</th> <th>出版日期</th> <th>出版社</th> <th>作者</th> <th>操作</th> </tr> </thead> <tbody> {% for book in current_page %} <tr> <td>{{ forloop.counter|add:strat }}</td> <td>{{ book.title }}</td> <td>{{ book.price }}</td> <td>{{ book.pub_date|date:'Y-m-d' }}</td> <td>{{ book.publish.name }}</td> <td> {% for author in book.authors.all %} {{ author.name }} {% if not forloop.last %} , {% endif %} {% endfor %} </td> <td> <a class="btn btn-success btn-xs" href="/books/edit/{{ book.pk }}">编辑</a> <button class="btn btn-danger btn-xs del" pk="{{ book.pk }}">删除</button> </td> </tr> {% endfor %} </tbody> </table> //以下是分页代码 <nav aria-label="Page navigation"> <ul class="pagination pull-right"> {% if current_page.has_previous %} <li><a href="?page={{ current_page.previous_page_number }}" aria-label="Previous"><span aria-hidden="true">上一页</span></a></li> {% else %} <li class="disabled"><a href="">上一页</a></li> {% endif %} {% for num in paginator.page_range %} {% if num == current_page_num %} <li class="active"><a href="?page={{ num }}">{{ num }}</a></li> {% else %} <li><a href="?page={{ num }}">{{ num }}</a></li> {% endif %} {% endfor %} {% if current_page.has_next %} <li><a href="?page={{ current_page.next_page_number }}" aria-label="Previous"><span aria-hidden="true">下一页</span></a></li> {% else %} <li class="disabled"><a href="">下一页</a></li> {% endif %} </ul> </nav> </div> </div> </div> {% csrf_token %} </script> </body> </html>
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