如何使用get_context_data在基于类的视图中添加分页

from django.core.paginator import Paginator, EmptyPage

def get_context_data(self, **kwargs):
    context = super().get_context_data(**kwargs)
    
    # 获取数据列表
    data_list = self.get_queryset()
    
    # 每页显示的数据数量
    per_page = 10
    
    # 创建Paginator对象
    paginator = Paginator(data_list, per_page)
    
    # 获取当前页码
    page = self.request.GET.get('page')
    
    try:
        # 获取当前页的数据
        data = paginator.page(page)
    except EmptyPage:
        # 如果页码超出范围，则返回最后一页的数据
        data = paginator.page(paginator.num_pages)
    
    # 将分页数据添加到上下文中
    context['data'] = data
    
    return context

{% for item in data %}
    <!-- 显示数据 -->
{% endfor %}

<!-- 显示分页导航 -->
<div class="pagination">
    <span class="step-links">
        {% if data.has_previous %}
            <a href="?page=1">&laquo; first</a>
            <a href="?page={{ data.previous_page_number }}">previous</a>
        {% endif %}
        
        <span class="current-page">{{ data.number }}</span>
        
        {% if data.has_next %}
            <a href="?page={{ data.next_page_number }}">next</a>
            <a href="?page={{ data.paginator.num_pages }}">last &raquo;</a>
        {% endif %}
    </span>
</div>