django分页器
1.实例化产生一个分页器对象
# 两个参数:object_list:对象列表, per_page:每页显示的条数
paginator=Paginator(book_list,10)
2.对象内的属性
#数据总条数
paginator.count
# 总页数
paginator.num_pages
# 页码数的列表
paginator.page_range
# 取到第 x 页 ,返回一个Page对象
current_page=paginator.page(5)
# 当前页码内所有的数据
current_page.object_list
# 是否有下一页
current_page.has_next()
# 是否有上一页
print(current_page.has_previous())
# 下一页页码数
current_page.next_page_number()
# 上一页的页码数
print(current_page.previous_page_number())
3.一个简单的含有分页器的页面
前端页面
<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.css">
{% load static %}
<script src="{% static 'jquery-3.3.1.js' %}"></script>
<script src="{% get_static_prefix %}bootstrap-3.3.7-dist/js/bootstrap.js"></script>
<title>分页图书</title>
</head>
<body>
<div class="row">
<div class="col-md-6 col-md-offset-3">
<table class="table table-hover">
<thead>
<tr>
<th>id</th>
<th>书名</th>
<th>价格</th>
</tr>
</thead>
<tbody>
{% for book in page_content %}
<tr>
<td>{{ book.id }}</td>
<td>{{ book.name }}</td>
<td>{{ book.price }}</td>
</tr>
{% endfor %}
</tbody>
</table>
<nav aria-label="Page navigation">
<ul class="pagination">
<li>
<a href="?page=1" aria-label="Previous">
<span aria-hidden="true">首页</span>
</a>
</li>
{% if page_content.has_previous %}
<li>
<a href="?page={{ page_content.previous_page_number }}" aria-label="Previous">
<span aria-hidden="true">上一页</span>
</a>
</li>
{% else %}
<li class="disabled">
<a href="" aria-label="Previous">
<span aria-hidden="true">上一页</span>
</a>
</li>
{% endif %}
{% for page in page_count %}
{% if page_num == page %}
<li class="active"><a href="?page={{ page }}">{{ page }}</a></li>
{% else %}
<li><a href="?page={{ page }}">{{ page }}</a></li>
{% endif %}
{% endfor %}
{% if page_content.has_next %}
<li>
<a href="?page={{ page_content.next_page_number }}" aria-label="Previous">
<span aria-hidden="true">下一页</span>
</a>
</li>
{% else %}
<li class="disabled">
<a href="" aria-label="Previous">
<span aria-hidden="true">下一页</span>
</a>
</li>
{% endif %}
</ul>
</nav>
</div>
</div>
</body>
</html>
后台页面
from django.shortcuts import render
from app01 import models
from django.core.paginator import Paginator
# Create your views here.
def book(request):
# book_li = []
# for i in range(100):
# book_li.append(models.Book(name='book%s'%i,price=10+i))
# models.Book.objects.bulk_create(book_li)
if request.method == 'GET':
books = models.Book.objects.all()
paginator = Paginator(books, 5)
try:
if int(request.GET.get('page')) not in range(1, paginator.num_pages + 1):
page_num = 1
except Exception as e:
page_num = 1
else:
page_num = int(request.GET.get('page'))
page_content = paginator.page(page_num)
if paginator.num_pages<11:
page_count = paginator.page_range
else:
if page_num-5<1:
page_count = range(1,12)
elif page_num+6>paginator.num_pages:
page_count = range(paginator.num_pages-10,paginator.num_pages+1)
else:
page_count = range(page_num-5,page_num+6)
return render(request, 'book.html', locals())
