1.自定义分页类的封装：
1 class Pagination(object): 2 """ 3 基于bootstrap样式的自定义分页类的封装 4 """ 5 # page_num为每页显示的数量，max_page_num为每页显示的总页码数 6 def __init__(self, request, lengths, page_num=10, max_page_num=7): 7 8 # 首先进行异常错误处理，比如：.../?page=-5等 9 try: 10 # 获取url中的page值，并将默认值设置为1 11 page = int(request.GET.get('page', 1)) 12 # print(page, type(page)) 13 if page < 1: 14 page = 1 15 except Exception: 16 page = 1 17 18 # 每页显示的数量 19 # page_num = 7 20 21 # 计算总页码数 22 # divmod为len(user_list) / page_num，整数为total_num，余数为remainder 23 total_num, remainder = divmod(lengths, page_num) 24 if remainder != 0: 25 total_num += 1 26 27 # 每页显示的总页码数 28 # max_page_num = 7 29 30 # 每页显示总页码数一半数 31 half_num = max_page_num // 2 32 # 实际总页码数 < 页面总页码数 33 if total_num < max_page_num: 34 # 页码起始值 35 page_start = 1 36 # 页码终止值 37 page_end = total_num 38 # 实际总页码数 > 页面总页码数 39 else: 40 # 处理左边极值 41 if page - half_num < 1: 42 page_start = 1 43 page_end = max_page_num 44 # 处理右边极值 45 elif page + half_num > total_num: 46 page_start = total_num - max_page_num + 1 47 page_end = total_num 48 else: 49 page_start = page - half_num 50 page_end = page + half_num 51 52 html_list = ['<nav aria-label="Page navigation"><ul class="pagination pagination-lg">'] 53 54 if page == 1: 55 html_list.append( 56 '<li class="disabled"><a href="#" aria-label="Previous"><span aria-hidden="true">«</span></a></li>') 57 else: 58 html_list.append( 59 '<li><a href="?page=%s" aria-label="Previous"><span aria-hidden="true">«</span></a></li>' % (page - 1)) 60 61 for i in range(page_start, page_end + 1): 62 if page == i: 63 html_list.append('<li class="active"><a href="?page=%s">%s</a></li>' % (i, i)) 64 else: 65 html_list.append('<li><a href="?page=%s">%s</a></li>' % (i, i)) 66 67 if page == total_num: 68 html_list.append( 69 '<li class="disabled"><a href="#" aria-label="Next"><span aria-hidden="true">»</span></a></li>') 70 else: 71 html_list.append( 72 '<li><a href="?page=%s" aria-label="Next"><span aria-hidden="true">»</span></a></li>' % ( 73 page + 1)) 74 75 html_list.append('</ul></nav>') 76 77 self.html_list = ''.join(html_list) 78 79 # 起始 80 # start = 0 81 self.start = (page - 1) * page_num 82 83 # 终止 84 # end = 7 85 self.end = page * page_num
2.后端调用
1 def GoodType(request): 2 resp_data = {} 3 g_type = GoodsType.objects.all() 4 page = Pagination(request,lengths=g_type.count(),page_num=5) 5 resp_data['g_type'] =g_type[page.start:page.end] 6 resp_data['page_html'] = page.html_list 7 return render(request, 'goods/goods_type.html', resp_data)
3.前端使用
1 <div class="row" style="margin-right: 0">{{ page_html|safe }}</div>
效果展示：
参考博客：戳这里