django网页的分页功能，大家如果有疑问请留言

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url文件

from django.contrib import admin
from django.conf.urls import url
from app01 import viewsurlpatterns = [
url(r'^user_list', views.user_list)
]

对views文件

def user_list(request):
pagesizenumber = request.COOKIES.get('pagesizenumber', 10) #获取COOKIE传过来的key('pagesizenumber'), 默认为10
current_number = request.GET.get('p', 1) #获得前端a的？p = 的值,此为当前页码数
one_page_number = 11 #每页显示的页码数
pagefi = pagenation.Page(List, pagesizenumber, current_number, one_page_number) #生成类
(show_page, list_page) = pagefi.page_str() #返回两个参数
return render(request, 'user_list.html', {'show_page' : show_page, 'list_page': list_page})

对于上述的pagenation.Page 中为Page.py 文件

from django.utils.safestring import mark_safe
class Page: def __init__(self, List, pagesizenumber, current_number, one_page_number = 11):
# List 输入传入的数据, pagesizenumber 每页显示的数据量，current_number 当前页码， one_page_number：每页页码数,默认11
self.pagesizenumber = pagesizenumber
self.current_number = current_number
self.one_page_number = one_page_number
self.List = List @property
def page_number(self):
self.one_math_number = int(self.pagesizenumber)
page_number, v = divmod(len(self.List), self.one_math_number) # page_number 总页码数，计算所需要的总页码数
return page_number
@property
def show_page(self):
self.current_number = int(self.current_number) #当前页码数
self.one_math_number = int(self.pagesizenumber)
page_number, v = divmod(len(self.List), self.one_math_number) #计算得需要的总页码数
if v > 0:
page_number += 1 # 如果大于1，页码数+1
show_page = self.List[(self.current_number - 1) * self.one_math_number:self.current_number * self.one_math_number] # 显示在页面的数
return show_page def page_str(self):
list_page = []
self.current_number = int(self.current_number)
self.one_math_number = int(self.pagesizenumber)
self.one_page_number = int(self.one_page_number) if self.page_number < self.one_page_number: # 总页码数小于单页页码数
start_page = 1
end_page = int(self.page_number) + 1
else: # 总页码数大于单页码数
if self.current_number <= int((self.one_page_number + 1) / 2): # 当前页码小于单页页码数中间
start_page = 1
end_page = int(self.one_page_number) + 1
print(start_page)
print(end_page)
elif self.page_number - int((self.one_page_number - 1) / 2) > self.current_number > int(
(self.one_page_number + 1) / 2): # 当前页码数大于单页页码数中间小于总页码数-单页页码中间 #开始发生变化
start_page = int(self.current_number - ((self.one_page_number) - 1) / 2)
end_page = int(self.current_number + ((self.one_page_number) + 1) / 2)
else:
start_page = self.page_number - self.one_page_number # 当前页码数大于总页码数-单页页码中间
end_page = self.page_number + 1
# 上一页按钮
if self.current_number == 1:
x = ("<a class='paging active' href='#'>上一页</a>")
else:
x = ("<a class='paging active' href='/user_list/?p=%s'>上一页</a>" % (self.current_number - 1,))
list_page.append(x)
# 添加a标签
for i in range(start_page, end_page):
if i == self.current_number:
x = ("<a class='paging active' href='/user_list/?p=%s'>%s</a>" % (i, i))
else:
x = ("<a class='paging' href='/user_list/?p=%s'>%s</a>" % (i, i)) list_page.append(x)
# 下一页按钮
if self.current_number == self.page_number:
x = ("<a class='paging active' href='#'>下一页</a>")
else:
x = ("<a class='paging active' href='/user_list/?p=%s'>下一页</a>" % (self.current_number + 1,))
list_page.append(x) x = '''
<input type="text"><a onclick = 'jumpTo(this, "/user_list/?p=")';>Go</a>
<script>
function jumpTo(ths, base){
var val = ths.previousSibling.value;
location.href = base + val; }
</script>
'''
# ths.previousSibling.value 找出在其上面的input的value值
# location.href = base + val 跳转
# x = '''
# <input type='text' ><a onclick='jumpTo(this, "/user_list/?p=")';>Go</a>
# <script>
# function jumpTo(ths,base){
# var val = ths.previousSibling.value;
# location.href = base + val;
# }
# </script>
# '''
list_page.append(x) list_page = ''.join(list_page)
print(list_page)
list_page = mark_safe(list_page)
return self.show_page, list_page

对于user_list.html文件

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.pagination .paging{
padding: 5px;
margin: 5px;
background-color: aqua;
color: white;
}
.pagination .paging.active{
background-color: red;
color: white; }
</style>
</head>
<body>
<ul>
{% for i in show_page %}
<li>{{ i }}</li>
{% endfor %}
</ul>
{# {% for i in list_page %}#}
{# <a class='paging' href="/user_list/?p={{ i }}">{{ i }}</a>#}
{# {% endfor %}#} <div class = pagination>
{{ list_page }}
</div>
{# onchange 检测改变#}
<select id = 'i1' onchange="changePageSize(this)">
<option value="">10</option>
<option value="">30</option>
<option value="">50</option>
<option value="">100</option>
</select>
<script src = '/static/jquery-3.3.1.js'></script>
<script src="/static/jquery.cookie.js"></script>
<script>
{# 文件一进来就执行该操作, 获得pagesizenumber值，改变values，初始值为10#}
$(function () {
var v = $.cookie('pagesizenumber');
if (v){$('#i1').val(v);}
else{$('#i1').val(10)}
});
function changePageSize(ths) {
var v = $(ths).val();
$.cookie('pagesizenumber', v, {path:'/user_list/'});
location.reload();
{# 刷新实现跳转#} }</script></body>
</html>