自定义分页组件

组件代码（page.py）：

from django.utils.safestring import mark_safe


class MyPagenation():

    def __init__(self,page_num,total_count,per_page_num,page_num_show,base_url):
        #每页显示多少条
        self.per_page_num = per_page_num
        # 页面生成页码的数量
        self.page_num_show = page_num_show
        self.base_url = base_url  # 访问路径
        try:
            page_num = int(page_num)   #当前页由字符串转换成数字
        except Exception:
            page_num = 1
        self.page_num = page_num

        shang, yu = divmod(total_count, self.per_page_num)  # shang:商    yu：余数
        # 总页码数
        if yu:
            page_num_count = shang + 1
        else:
            page_num_count = shang
        self.page_num_count = page_num_count      # 总页码数
        if page_num <= 0:
            page_num = 1
        elif page_num > page_num_count:
            page_num = page_num_count


        half_show = self.page_num_show // 2
        if page_num - half_show <= 0:
            start_page_num = 1
            end_page_num = self.page_num_show + 1

        elif page_num + half_show > page_num_count:
            start_page_num = page_num_count - self.page_num_show + 1
            end_page_num = page_num_count + 1
        else:
            start_page_num = page_num - half_show
            end_page_num = page_num + half_show + 1

　　　　 # 如果总数据的页数小于设定的展示页码总数，那么就显示总数据的页数
　　　　　if page_num_count < self.page_num_show:
   　　　 start_page_num = 1
    　　　end_page_num = page_num_count + 1
　　　　 


        self.start_page_num = start_page_num
        self.end_page_num = end_page_num

    @property
    def start_data_num(self):
        return (self.page_num - 1) * self.per_page_num

    @property
    def end_data_num(self):
        return self.page_num * self.per_page_num

    def page_hmtl(self):
        page_num_range = range(self.start_page_num, self.end_page_num)
        page_html = ''
        page_pre_html = '<nav aria-label="Page navigation"><ul class="pagination">'
        page_html += page_pre_html
        first_page_html = '<li><a href="{1}?page={0}" aria-label="Previous"><span aria-hidden="true">首页</span></a></li>'.format(1, self.base_url)
        page_html += first_page_html
        if self.page_num <= 1:
            pre_page = '<li class="disabled"><a href="javascript:void(0)" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a></li>'.format(self.page_num - 1)
        else:
            pre_page = '<li><a href="{1}?page={0}" aria-label="Previous"><span aria-hidden="true">&laquo;</span></a></li>'.format(self.page_num - 1,self.base_url)

        page_html += pre_page
        for i in page_num_range:
            if i == self.page_num:
                page_html += '<li class="active"><a href="{1}?page={0}">{0}</a></li>'.format(i,self.base_url)
            else:
                page_html += '<li><a href="{1}?page={0}">{0}</a></li>'.format(i,self.base_url)
        if self.page_num >= self.page_num_count:
            page_next_html = '<li class="disabled"><a href="javascript:void(0)" aria-label="Next"><span aria-hidden="true">&raquo;</span></a></li>'.format(
                self.page_num + 1)
        else:
            page_next_html = '<li><a href="{1}?page={0}" aria-label="Next"><span aria-hidden="true">&raquo;</span></a></li>'.format(
                self.page_num + 1,self.base_url)
        page_html += page_next_html
        last_page_html = '<li><a href="{1}?page={0}" aria-label="Previous"><span aria-hidden="true">尾页</span></a></li>'.format(
            self.page_num_count, self.base_url)
        page_html += last_page_html
        end_html = '</ul></nav>'
        page_html += end_html

        return mark_safe(page_html)

视图里面的代码配置（views.py）：

    page_num = request.GET.get('page')   #获取当前页
    base_url = request.path  #访问的路径

    customer_count = models.Customer.objects.all().count()   #获取数据总数量

    per_page_num = settings.PER_PAGE_NUM  #每页显示多少条数据
    page_num_show = settings.PAGE_NUM_SHOW  #显示的页码数

    page_obj = MyPagenation(page_num,customer_count,per_page_num,page_num_show,base_url)

    page_html = page_obj.page_hmtl()

    customer_objs = models.Customer.objects.all().reverse()[page_obj.start_data_num:page_obj.end_data_num]
    return render(request,'saleshtml/customers.html',{'customer_objs':customer_objs,'page_html':page_html})

配置settings.py

PER_PAGE_NUM = 10 #每页显示多少条数据
PAGE_NUM_SHOW = 5 #显示的页码数

样式展示：