Django-分页器

# Create your views here.
# 导入render和HttpResponse模块
from django.shortcuts import render, HttpResponse

# 导入Paginator,EmptyPage和PageNotAnInteger模块
from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger

# 从Django项目的应用中导入模块
from app01.models import *

from app01 import models

def create(request):
    booklist = []
    for i in range(100):
        booklist.append(models.Book(title="book" + str(i), price=20 + i * i))

    models.Book.objects.bulk_create(booklist)
    return HttpResponse("ok")

def index(request):
    # 获取Book数据表中的所有记录
    book_list = Book.objects.all()

    # 生成paginator对象,定义每页显示10条记录
    paginator = Paginator(book_list, 10)

    # 从前端获取当前的页码数,默认为1
    page = request.GET.get('page', 1)

    # 把当前的页码数转换成整数类型
    currentPage = int(page)

    try:
        print(page)
        book_list = paginator.page(page)  # 获取当前页码的记录
    except PageNotAnInteger:
        book_list = paginator.page(1)  # 如果用户输入的页码不是整数时,显示第1页的内容
    except EmptyPage:
        book_list = paginator.page(paginator.num_pages)  # 如果用户输入的页数不在系统的页码列表中时,显示最后一页的内容

    return render(request, "index.html", locals())

views

from django.conf.urls import url
from django.contrib import admin
from app01 import  views

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^create/', views.create),
    url(r'^index/', views.index),

urls

{% load staticfiles %}
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="https://cdn.bootcss.com/bootstrap/3.3.7/css/bootstrap.min.css"
          integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
</head>
<body>
<div class="container ">
    <div class="table-responsive">

        <table class="table table-hover">
            <thead>
            <tr>
                <th>名称</th>
                <th>价格</th>
            </tr>
            </thead>
            <tbody>
            {% for book in book_list %}
                <tr>
                    <td >{{ book.title }} </td>
                    <td>{{ book.price }}</td>
                </tr>
            {% endfor %}
            </tbody>


        </table>
    </div>

    <ul class="pagination " id="pager ">
        {#上一页按钮开始#}
        {# 如果当前页有上一页#}
        {% if book_list.has_previous %}
            {#  当前页的上一页按钮正常使用#}
            <li class="previous"><a href="./?page={{ book_list.previous_page_number }}">上一页</a></li>
        {% else %}
            {# 当前页的不存在上一页时,上一页的按钮不可用#}
            <li class="previous disabled"><a href="#">上一页</a></li>
        {% endif %}
        {#上一页按钮结束#}
        {# 页码开始#}
        {% for num in paginator.page_range %}

            {% if num == currentPage %}
                <li class="item active"><a href="./?page={{ num }}">{{ num }}</a></li>
            {% else %}
                <li class="item"><a href="./?page={{ num }}">{{ num }}</a></li>

            {% endif %}
        {% endfor %}
        {#页码结束#}
        {# 下一页按钮开始#}
        {% if book_list.has_next %}
            <li class="next"><a href="./?page={{ book_list.next_page_number }}">下一页</a></li>
        {% else %}
            <li class="next disabled"><a href="#">下一页</a></li>
        {% endif %}
        {# 下一页按钮结束#}
    </ul>
</div>
</body>
</html>

index

from django.db import models
import django.utils.timezone as timezone
# Create your models here.


class Book(models.Model):
    title = models.CharField(max_length=32)
    price = models.DecimalField(max_digits=6, decimal_places=2)
    create_time = models.DateField(default=timezone.now())
    memo = models.CharField(max_length=32, default="")

models

效果图：

批量插入数据

 # booklist = []
    # for i in range(100):
    #     booklist.append(models.Book(name="book" + str(i), price=20 + i * i))
    #
    # models.Book.objects.bulk_create(booklist)

批量插入数据

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