关于bootstrap:DjangoBootstrap封装页码组件

成果展现，依据以后页码显示前后各 5 页，有首页和尾页，上一页和下一页

pytho 代码
新建 py 文件：pageination.py

"""自定义分页组件"""
from django.utils.safestring import mark_safe


class Pageination(object):
    """
          :param request: 申请的对象
          :param queryset: 符合条件的数据（依据这个数据给他进行分页解决）:param page_size: 每页显示多少条数据
          :param page_param: 在 URL 中传递的获取分页的参数，例如：/etty/list/?page=12
          :param plus: 显示当前页的 前或后几页（页码）"""def __init__(self, request, queryset, page_size=10, page_param='page', plus=5):
        page = request.GET.get('page', 1)
        # 判断是否为字符串十足
        if page.isdecimal():
            page = int(page)
        else:
            page = 1

        # 获取当前页
        self.page = page
        # 每页显示条数
        self.page_size = page_size
        # 起始页
        self.start = (page - 1) * page_size
        # 完结页
        self.end = page * page_size

        self.page_queryset = queryset[self.start:self.end]

        # 总条数
        total_count = queryset.count()
        total_page_count, div = divmod(total_count, page_size)  # 获取整除数 与 余数
        if div:
            total_page_count += 1
        # 总页码
        self.total_page_count = total_page_count

        # 显示页码数
        self.plus = plus

    def html(self):
        # 计算出当前页前 5 页，和后 5 页
        if self.total_page_count <= 2 * self.plus + 1:
            start_page = 1
            end_page = self.total_page_count
        else:
            # 数据地面的数据表较多 >11
            if self.page <= self.plus:
                start_page = 1
                end_page = 2 * self.plus + 1
            else:
                if (self.page + self.plus) > self.total_page_count:
                    start_page = self.total_page_count - 2 * self.plus
                    end_page = self.total_page_count
                else:
                    start_page = self.page - self.plus
                    end_page = self.page + self.plus + 1

        # 生成页码
        page_str_list = []
        # 首页
        page_str_list.append('<li><a href="?page=1"> 首页 </a></li>')
        # 上一页
        if self.page > 1:
            prev = f'<li><a href="?page={self.page - 1}"> 上一页 </a></li>'
        else:
            prev = f'<li><a href="?page={1}"> 上一页 </a></li>'
        page_str_list.append(prev)

        for i in range(start_page, end_page + 1):
            if i == self.page:
                ele = f'<li class="active"><a href="?page={i}">{i}</a></li>'
            else:
                ele = f'<li><a href="?page={i}">{i}</a></li>'
            page_str_list.append(ele)

        # 下一页
        if self.page < self.total_page_count:
            prev = f'<li><a href="?page={self.page + 1}"> 下一页 </a></li>'
        else:
            prev = f'<li><a href="?page={self.total_page_count}"> 下一页 </a></li>'

        page_str_list.append(prev)
        # 尾页
        page_str_list.append(f'<li><a href="?page={self.total_page_count}"> 尾页 </a></li>')

        # 输出页码跳转
        search_string = """<form method="get">
                    <div class="input-group">
                        <input type="text" name="page" class="form-control" placeholder="Search for...">
                        <span class="input-group-btn">
                            <button class="btn btn-default" type="submit"> 跳转 </button>
                        </span>
                    </div>
                </form>
            """
        page_str_list.append(search_string)

        # 转换为 HTML 元素
        page_string = mark_safe(''.join(page_str_list))

        return page_string

调用页码：

page_object = Pageination(request, queryset)

    context = {
        'queryset': page_object.page_queryset,
        'search_data': search_data,  # 分完页的数据
        'page_string': page_object.html(),  # 页码}

return render(request, 'pretty_list.html', context)

html 中应用

<nav aria-label="Page navigation">
            <ul class="pagination">
                {{page_string}}
            </ul>
</nav>