django页面分页功能 Paginator

#前端页面分页  Paginator

#views逻辑

from django.core.paginator import Paginator

def index(request):
    page = request.GET.get('page')
    articles = models.Article.objects.all()
    #创建Paginator实例对象，每页展示5条数据
    page_obj = Paginator(articles,5)
    # print("文章一共有多少数据",page_obj.count)
    # print("一共分了多少页",page_obj.num_pages)
    # print("页码列表 range对象",page_obj.page_range)
    # for i in page_obj.page_range:
    #     print(i)

    #page_data数据是某一页的数据集合对象
    page_data = page_obj.get_page(page)
    # print("是否有上一页或下一页",page_data.has_other_pages())
    # print("是否有下一页",page_data.has_next())
    # print("是否有上一页",page_data.previous_page_number())
    # print("当前页",page_data.number)

    return render(request,'index.html',{'articles':page_data,"page_obj":page_obj})

#前端对返回数据进行处理

{% if articles.has_other_pages %}
            <div class="text-center mt-2 mt-sm-1 mt-md-0 mb-3 f-16">
            {% if articles.has_previous %}
                <span class="text-secondary" title="当前页已经是首页"><a href="/articles?page={{ articles.previous_page_number }}">上一页</a></span>
            {% endif %}
                {% for num in page_obj.page_range %}
                    {% if num == articles.number %}
                    <span class="mx-2" style="background-color: #0d8ddb"><a href="/article?page={{ num }}"></a>{{ num }}</span>
                    {% else %}

                <span class="mx-2"><a href="/articles?page={{ num }}">{{ num }}</a></span>
                    {% endif %}
                {% endfor %}
            {% if articles.has_next %}

                <a class="text-success" href="/articles?page={{ articles.next_page_number }}">下一页</a>
            {% endif %}