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Django自带分页

2024-10-16 07:01:02   218人阅读

urls.py

 1 from django.conf.urls import url
 2 from django.contrib import admin
 3 from app01 import views
 4  
 5  
 6 urlpatterns = [
 7  
 8 # 查看django自带的上一页和下一页
 9     url(r‘^index.html$‘, views.index),
10  
11 ]　

views.py

技术分享 
 1 from django.shortcuts import render,HttpResponse
 2 from django.views import View
 3 from app01 import models
 4 from django.core.paginator import Paginator,Page,PageNotAnInteger,EmptyPage
 5 # django自带的分页
 6 def index(request):
 7     """
 8     分页
 9     :param request:
10     :return:
11     """
12     # 往用户信息的数据表内插入300条用户信息
13     # for i in range(301):
14     #     name="xuyuanyuan"+str(i)
15     #     models.Userinfo.objects.create(username=name,age=20,ut_id=2)
16  
17     choise_page=request.GET.get("page")
18     user_list=models.Userinfo.objects.all()
19     # paginator=Paginator(user_list,10)分页处理，每一页10条数据
20     paginator=Paginator(user_list,10)
21     # per_page: 每页显示条目数量
22     # count:    数据总个数
23     # num_pages:总页数
24     # page_range:总页数的索引范围，如: (1,10),(1,200)
25     # page:     page对象
26  
27     try:
28         result=paginator.page(choise_page)
29         # print(result)#QuerySet [<Userinfo: Userinfo object>, <Userinfo: Userinfo object>,
30         # 打印的result是一个个userinfo的对象
31         # print(result.object_list)
32     except PageNotAnInteger as e:
33         result=paginator.page(1)
34     except EmptyPage as e:
35         result=paginator.page(1)
36  
37     # has_next              是否有下一页
38     # next_page_number      下一页页码
39     # has_previous          是否有上一页
40     # previous_page_number  上一页页码
41     # object_list           分页之后的数据列表
42     # number                当前页
43     # paginator             paginator对象
44  
45     return render(request,"index.html",{"result":result})
View Code

index.html

技术分享 
 1 <!DOCTYPE html>
 2 <html lang="en">
 3 <head>
 4     <meta charset="UTF-8">
 5     <title>Title</title>
 6 </head>
 7 <body>
 8 <h1>用户列表</h1>
 9 <ul>
10     {% for i in result.object_list %}
11         <li>姓名：{{ i.username }}</li>
12     {% endfor %}
13 </ul>
14 <div>
15     {% if result.has_previous %}
16         <a href=http://www.mamicode.com/"/index.html?page={{ result.previous_page_number }}">上一页</a>
17     {% endif %}
18  
19     {% if result.has_next %}
20         <a href=http://www.mamicode.com/"/index.html?page={{ result.next_page_number }}">下一页</a>
21     {% endif %}
22 </div>
23 </body>
24 </html>
View Code

 

Django自带分页


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