1.urls.py
from app01 import views
from app02 import views as v2
urlpatterns = [
path('admin/', admin.site.urls),
path('index/', views.index),
path('index1/', views.index1),
path('index2/', views.index2),
path('f1/', v2.f1),
]
2.settings.py
STATICFILES_DIRS=(
os.path.join(BASE_DIR,'static'),
)
3.views.py
from django.shortcuts import render
from django.core.paginator import Paginator,EmptyPage,PageNotAnInteger
USER_LIST=[]
for i in range(1,999):
temp={'name':'root'+str(i),'age':i}
USER_LIST.append(temp)
class CustomerPaginator(Paginator):
def __init__(self,current_page,per_pager_num,*args,**kwargs):
#当前页
#最多显示的页码数量 11
self.current_page=int(current_page)
self.per_pager_num=int(per_pager_num)
super(CustomerPaginator,self).__init__(*args,**kwargs)
#返回页码范围
def pager_num_range(self):
# 当前页 self.current_page
# 最多显示的页码数量 self.per_pager_num 11
if self.num_pages < self.per_pager_num:
return range(1,self.num_pages-1)
#总页数特别多
part=int(self.per_pager_num/2)
if self.current_page <= part:
return range(1,self.per_pager_num+1)
if(self.current_page+part)>self.num_pages:
return range(self.num_pages-self.per_pager_num+1,self.num_pages+1)
return range(self.current_page-part,self.current_page+part+1)
# Create your views here.
def index(req):
per_page_count=10
current_page=req.GET.get('p')
current_page=int(current_page)
start = (current_page-1)*per_page_count
end=current_page*per_page_count
data=USER_LIST[start:end]
prev_page=current_page-1
next_page=current_page+1
return render(req,'index.html',{'user_list':data,"prev_page":prev_page,"next_page":next_page})
def index1(req):
# 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
current_page=req.GET.get('p')
paginator=CustomerPaginator(current_page,11,USER_LIST,10)
try:
#Page对象
posts = paginator.page(current_page)
# 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
except PageNotAnInteger:
posts = paginator.page(1)
except EmptyPage:
posts = paginator.page(paginator.num_pages)
return render(req,'index1.html',{'posts':posts})
def index2(req):
from app01.pager import Pagination
current_page=req.GET.get('p')
page_obj=Pagination(666,current_page)
data_list=USER_LIST[page_obj.start():page_obj.end()]
return render(req,'index2.html',{'data':data_list,'page_obj':page_obj})
4.pager.py(自定义分页)
class Pagination:
'''
-所有数据的个数
-当前页
-每页显示的条数
-页码范围7
'''
def __init__(self,totalCount,currentPage,perPageItemNum=10,maxPageNum=7):
self.total_count = totalCount
try:
v=int(currentPage)
if v<=0:
v=1
self.current_page=v
except Exception as e:
self.current_page=1
self.per_page_item_num=perPageItemNum
self.max_page_num=maxPageNum
def start(self):
return (self.current_page-1)*self.per_page_item_num
def end(self):
return self.current_page*self.per_page_item_num
#将方法伪造成属性
@property
def num_pages(self):
a,b=divmod(self.total_count,self.per_page_item_num)
if b==0:
return a
return a+b
# 返回页码范围
def pager_num_range(self):
# 当前页 self.current_page
# 最多显示的页码数量 self.per_pager_num 11
if self.num_pages < self.max_page_num:
return range(1, self.num_pages - 1)
# 总页数特别多
part = int(self.max_page_num / 2)
if self.current_page <= part:
return range(1, self.max_page_num + 1)
if (self.current_page + part) > self.num_pages:
return range(self.num_pages - self.max_page_num + 1, self.num_pages + 1)
return range(self.current_page - part, self.current_page + part + 1)
def page_str(self):
page_list=[]
first ="<li><a href='/index2?p=1'>首页</a></li>"
page_list.append(first)
if self.current_page==1:
prev="<li><a href='#'>上一页</a></li>"
else:
prev="<li><a href='/index2?p=%s'>上一页</a></li>" %(self.current_page-1)
page_list.append(prev)
for i in self.pager_num_range():
if i == self.current_page:
temp = "<li class='active'><a href='/index2?p=%s'>%s</a></li>" % (i, i)
else:
temp = "<li><a href='/index2?p=%s'>%s</a></li>" % (i, i)
page_list.append(temp)
if self.current_page ==self.num_pages:
nex = "<li><a href='#'>下一页</a></li>"
else:
nex = "<li><a href='/index2?p=%s'>下一页</a></li>" % (self.current_page + 1)
page_list.append(nex)
last = "<li><a href='/index2?p=%s'>尾页</a></li>" %(self.num_pages,)
page_list.append(last)
return ''.join(page_list)
5.index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<ul>
{% for user in user_list %}
<li>{{ user.name }}-{{ user.age }}</li>
{% endfor %}
</ul>
<a href="/index?p={{ prev_page }}">上一页</a>
<a href="/index?p={{ next_page }}">下一页</a>
</body>
</html>
6.index1.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<ul>
{% for user in posts.object_list %}
<li>{{ user.name }}-{{ user.age }}</li>
{% endfor %}
</ul>
{% include 'include/pager.html' %}
</body>
</html>
7.index2.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="/static/bootstrap-3.3.7-dist/css/bootstrap.css">
</head>
<body>
<ul>
{% for user in data %}
<li>{{ user.name }}-{{ user.age }}</li>
{% endfor %}
</ul>
{% for i in page_obj.pager_num_range %}
<a href="/index2?p={{ i }}">{{ i }}</a>
{% endfor %}
<hr>
<ul class="pagination">
{{ page_obj.page_str | safe}}
</ul>
<div style="height: 300px;"></div>
</body>
</html>
8.include/pager.html
{% if posts.has_previous %}
<a href="/index1?p={{ posts.previous_page_number }}">上一页</a>
{% else %}
<a href="#">上一页</a>
{% endif %}
{% for i in posts.paginator.pager_num_range %}
{% if i == posts.number %}
<a style="font-size: 30px" href="/index1?p={{ i }}">{{ i }}</a>
{% else %}
<a href="/index1?p={{ i }}">{{ i }}</a>
{% endif %}
{% endfor %}
{% if posts.has_next %}
<a href="/index1?p={{ posts.next_page_number }}">下一页</a>
{% endif %}
<span>
{{ posts.number }}/{{ posts.paginator.num_pages }}
</span>
