Django前端BootCSS實現(xiàn)分頁的方法

更新時間：2021年11月02日 15:19:05 作者：lyshark

本文主要介紹了Django前端BootCSS實現(xiàn)分頁的方法，文中通過示例代碼介紹的非常詳細，具有一定的參考價值，感興趣的小伙伴們可以參考一下

通過使用bootstrap框架，并配合Django自帶的Paginator分頁組件即可實現(xiàn)簡單的分頁效果。

1.創(chuàng)建MyWeb項目

python manage.py startapp MyWeb

2.修改settings.py配置文件,導(dǎo)入我們的app的名字，去掉csrf這個選項

# 屏蔽一項
MIDDLEWARE = [
    #'django.middleware.csrf.CsrfViewMiddleware'
]

# 新增一項
TEMPLATES = [
 'MyWeb.apps.MywebConfig'
]

3.來urls.py里面寫一條路由，名字就叫index/映射到views.index函數(shù)下處理此請求

from MyWeb import views

urlpatterns = [
    path('admin/', admin.site.urls),
    path('index/', views.index)
]

4.最后在myweb里面的views.py設(shè)置一個視圖函數(shù),最后運行

from django.shortcuts import render
from django.shortcuts import HttpResponse
from MyWeb import models

def index(requests):
    return HttpResponse("abcd")

5.配置數(shù)據(jù)庫文件models.py并設(shè)置以下內(nèi)容

from django.db import models

# 創(chuàng)建用戶表
class User(models.Model):
    id = models.AutoField(primary_key=True)
    username = models.CharField(max_length=32)
    password = models.CharField(max_length=32)

6.更新數(shù)據(jù)庫與數(shù)據(jù)表

python manage.py makemigrations   # 將你的數(shù)據(jù)庫變動記錄下來(并不會幫你創(chuàng)建表)
python manage.py migrate          # 將你的數(shù)據(jù)庫變動正在同步到數(shù)據(jù)庫中

7.增加一個新的view并使用rand()函數(shù).

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視圖中增加生成函數(shù).

from django.shortcuts import render
from django.shortcuts import HttpResponse
from MyWeb import models
import random

# 首頁
def index(requests):
    return HttpResponse("abcd")

# 生成測試數(shù)據(jù)
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")

啟動django并訪問http://127.0.0.1:8000/rand/等待數(shù)據(jù)生成結(jié)束.

8.在templates模板中，新增一個page.html頁面。

<!--name: page.html-->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet"  rel="external nofollow" >
</head>
<body>
<table class="table table-sm table-hover">
    <thead>
        <tr class="table-success">
            <th> 序號</th> <th> 用戶名</th> <th> 用戶密碼</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" >首頁</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" >上一頁</a></li>
        {% else %}
            <li class="page-item disabled"><a class="page-link" href="#" rel="external nofollow"  rel="external nofollow" >上一頁</a></li>
        {% endif %}

        {% for item in page_range %}
            {% 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" >下一頁</a></li>
        {% else %}
            <li class="page-item disabled"><a class="page-link" href="#" rel="external nofollow"  rel="external nofollow" >下一頁</a></li>
        {% endif %}
        <li class="page-item"><a class="page-link" href="./page?id={{ paginator.num_pages }}" rel="external nofollow" >尾頁</a></li>
    </ul>
</nav>

<div style="text-align: center;" class="alert alert-dark">
   統(tǒng)計: {{ currentPage }}/{{ paginator.num_pages }} 共查詢到:{{ paginator.count }} 條數(shù)據(jù) 頁碼列表:{{ paginator.page_range }}
</div>
</body>
</html>

9.最后在路由曾以及view中增加對應(yīng)的URL以及路由函數(shù).

首先在urls.py中增加一條新路由.

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)
]

接著在views.py中增加一個page函數(shù).

from django.shortcuts import render
from django.shortcuts import HttpResponse
from MyWeb import models
import random

from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger

# 首頁
def index(requests):
    return HttpResponse("abcd")

# 生成測試數(shù)據(jù)
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")

# 分頁函數(shù)
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})

準備就緒之后，直接訪問http://127.0.0.1:8000/page即可看到分頁顯示效果.