Django内置分页扩展
url文件
urlpatterns = [ path('admin/', admin.site.urls), path('index1.html/', views.index1), ]
views文件
from django.shortcuts import render from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger # Create your views here. USER_LIST = [] for i in range(1,999): temp = {"name":"root"+str(i),"age":i} USER_LIST.append(temp) def index(request): per_page_count = 10 current_page=request.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] if current_page<=1: prve_pag = 1 prve_pag = current_page -1 next_pag = current_page +1 return render(request,'index.html',{"users":data,"prve_page":prve_pag,"next_page":next_pag}) class CustomPaginator(Paginator): def __init__(self,current_page,per_page_num,*args,**kwargs): super(CustomPaginator,self).__init__(*args,**kwargs) #当前页 self.current_page = int(current_page) #最多显示数量 self.per_page_num = int(per_page_num) def per_num_range(self): #如果总页数小于最多显示数量 if self.num_pages<self.per_page_num: return range(1,self.num_pages+1) part=int(self.per_page_num/2) #当前页小于part（页码从领开始） if self.current_page <part: return range(1,self.per_page_num+1) #当前页+part大于总页数（页码最后一位已经显示出来了） 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) def index1(request): # 全部数据：USER_LIST，=》得出共有多少条数据 # 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（是否具有下一页；是否有上一页；） current_page=request.GET.get('p') paginator = CustomPaginator(current_page,7,USER_LIST,10) try: 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，已经切片好的数据 # number 当前页 # paginator paginator对象 except PageNotAnInteger: posts = paginator.page(1) except EmptyPage: posts=paginator.page((paginator.num_pages)) return render(request,"index1.html",{"posts":posts})
html文件
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> <ul> {% for row in posts.object_list %} <li>{{ row.name }}--{{ row.age }}</li> {% endfor %} </ul> {% include 'include/pager.html' %} </body> </html>
将分页代码放在include，这样分页功能就可以重用了
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> </head> <body> {% if posts.has_previous %} <a href="/index1.html?p={{ posts.previous_page_number }}">上一页</a> {% endif %} {% for i in posts.paginator.per_num_range %} {% if i == posts.number %} <a style="font-size: 30px;" href="/index1.html?p={{ i }}">{{ i }}</a> {% else %} <a href="/index1.html?p={{ i }}">{{ i }}</a> {% endif %} {% endfor %} {% if posts.has_next%} <a href="/index1.html?p={{ posts.next_page_number }}">下一页</a> {% endif %} <span>{{ posts.number }}/{{ posts.paginator.num_pages}}</span> </body> </html>
