Django前端BootCSS实现分页的方法
通过使用bootstrap框架,并配合Django自带的Paginator分页组件即可实现简单的分页效果。
1.创建MyWeb项目
python manage.py startapp MyWeb
2.修改settings.py配置文件,导入我们的app的名字,去掉csrf这个选项
# 屏蔽一项 MIDDLEWARE = [ #'django.middleware.csrf.CsrfViewMiddleware' ] # 新增一项 TEMPLATES = [ 'MyWeb.apps.MywebConfig' ]
3.来urls.py里面写一条路由,名字就叫index/映射到views.index函数下处理此请求
from MyWeb import views urlpatterns = [ path('admin/', admin.site.urls), path('index/', views.index) ]
4.最后在myweb里面的views.py设置一个视图函数,最后运行
from django.shortcuts import render from django.shortcuts import HttpResponse from MyWeb import models def index(requests): return HttpResponse("abcd")
5.配置数据库文件models.py并设置以下内容
from django.db import models # 创建用户表 class User(models.Model): id = models.AutoField(primary_key=True) username = models.CharField(max_length=32) password = models.CharField(max_length=32)
6.更新数据库与数据表
python manage.py makemigrations # 将你的数据库变动记录下来(并不会帮你创建表) python manage.py migrate # 将你的数据库变动正在同步到数据库中
7.增加一个新的view并使用rand()函数.
首先在urls.py中增加路由
from django.contrib import admin from django.urls import path from MyWeb import views urlpatterns = [ path('admin/', admin.site.urls), path('index/',views.index), path('rand/',views.rand) ]
其次在view.py视图中增加生成函数.
from django.shortcuts import render from django.shortcuts import HttpResponse from MyWeb import models import random # 首页 def index(requests): return HttpResponse("abcd") # 生成测试数据 def rand(request): for i in range(1,1000): chars = [] pasd = [] for x in range(1,8): chars.append(random.choice('abcdefghijklmnopqrstuvwxyz')) pasd.append(random.choice('0987654321')) user = "".join(chars) pwd = "".join(pasd) models.User.objects.create(username=user, password=pwd) return HttpResponse("ok")
启动django并访问http://127.0.0.1:8000/rand/等待数据生成结束.
8.在templates模板中,新增一个page.html页面。
<!--name: page.html--> <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" href="https://cdn.lyshark.com/bootstrap/4.5.0/css/bootstrap.min.css" rel="external nofollow" > </head> <body> <table class="table table-sm table-hover"> <thead> <tr class="table-success"> <th> 序号</th> <th> 用户名</th> <th> 用户密码</th> </tr> </thead> <tbody> {% for article in user_list %} <tr class="table-primary"> <td>{{ article.id }}</td> <td>{{ article.username }}</td> <td>{{ article.password }}</td> </tr> {% endfor %} </tbody> </table> <nav class="d-flex justify-content-center" aria-label="Page navigation example"> <ul class="pagination"> <li class="page-item"><a class="page-link" href="./page?id=1" rel="external nofollow" >首页</a></li> {% if user_list.has_previous %} <li class="page-item"><a class="page-link" href="./page?id={{ user_list.previous_page_number }}" rel="external nofollow" >上一页</a></li> {% else %} <li class="page-item disabled"><a class="page-link" href="#" rel="external nofollow" rel="external nofollow" >上一页</a></li> {% endif %} {% for item in page_range %} 迪拜服务器http://www.558idc.com/dibai.html {% if item == currentPage %} <li class="page-item active"><a class="page-link" href="./page?id={{ item }}" rel="external nofollow" rel="external nofollow" >{{ item }}</a></li> {% else %} <li class="page-item"><a class="page-link" href="./page?id={{ item }}" rel="external nofollow" rel="external nofollow" >{{ item }}</a></li> {% endif %} {% endfor %} {% if user_list.has_next %} <li class="page-item"><a class="page-link" href="./page?id={{ user_list.next_page_number }}" rel="external nofollow" >下一页</a></li> {% else %} <li class="page-item disabled"><a class="page-link" href="#" rel="external nofollow" rel="external nofollow" >下一页</a></li> {% endif %} <li class="page-item"><a class="page-link" href="./page?id={{ paginator.num_pages }}" rel="external nofollow" >尾页</a></li> </ul> </nav> <div style="text-align: center;" class="alert alert-dark"> 统计: {{ currentPage }}/{{ paginator.num_pages }} 共查询到:{{ paginator.count }} 条数据 页码列表:{{ paginator.page_range }} </div> </body> </html>
9.最后在路由曾以及view中增加对应的URL以及路由函数.
首先在urls.py中增加一条新路由.
from django.contrib import admin from django.urls import path from MyWeb import views urlpatterns = [ path('admin/', admin.site.urls), path('index/',views.index), path('rand/',views.rand), path('page',views.page) ]
接着在views.py中增加一个page函数.
from django.shortcuts import render from django.shortcuts import HttpResponse from MyWeb import models import random from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger # 首页 def index(requests): return HttpResponse("abcd") # 生成测试数据 def rand(request): for i in range(1,1000): chars = [] pasd = [] for x in range(1,8): chars.append(random.choice('abcdefghijklmnopqrstuvwxyz')) pasd.append(random.choice('0987654321')) user = "".join(chars) pwd = "".join(pasd) models.User.objects.create(username=user, password=pwd) return HttpResponse("ok") # 分页函数 def page(request): user = models.User.objects.all() paginator = Paginator(user, 10) currentPage = int(request.GET.get("id",1)) if paginator.num_pages > 15: if currentPage-5 < 1: pageRange = range(1,11) elif currentPage+5 > paginator.num_pages: pageRange = range(currentPage-5,paginator.num_pages) else: pageRange = range(currentPage-5,currentPage+5) else: pageRange = paginator.page_range try: user_list = paginator.page(currentPage) except PageNotAnInteger: user_list = paginator.page(1) except: user_list = paginator.page(paginator.num_pages) return render(request,"page.html",{"user_list":user_list, "paginator":paginator, "page_range":pageRange, "currentPage":currentPage})
准备就绪之后,直接访问http://127.0.0.1:8000/page即可看到分页显示效果.
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