1.前端
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <!-- 最新版本的 Bootstrap 核心 CSS 文件 --> <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@3.3.7/dist/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"> </head> <body> <ul> {% for book in book_list %} <li>{{ book.title }}------{{ book.price }}</li> {% endfor %} </ul> <nav aria-label="Page navigation"> <ul class="pagination"> {{ pagination.page_html|safe }} </ul> </nav> </body> </html>
2.views
def index(request): from app01.page import Pagination book_list = Book.objects.all() current_page_num = request.GET.get("page") pagination = Pagination(current_page_num,book_list.count(),request) book_list = book_list[pagination.start:pagination.end] return render(request,"index.html",locals())
3.page
class Pagination(object): def __init__(self,current_page_num,all_count,request,per_page_num=2,parger_count=11): ''' 封装分页相关数据 :param current_page_num: 当前访问页的数字 :param all_count: 分页数据的总数 :param request: request请求数据 :param per_page_num: 每页显示的数据条数 :param parger_count: 最多显示的页码个数 ''' try: current_page_num = int(current_page_num) except Exception as e: current_page_num = 1 if current_page_num < 1: current_page_num = 1 self.current_page_num = current_page_num self.all_count = all_count self.per_page_num = per_page_num # 实际总页码 all_pager,tmp = divmod(all_count,per_page_num) if tmp: all_pager += 1 self.all_pager = all_pager self.pager_count = parger_count self.pager_count_half = int((parger_count - 1) / 2) # 保存搜索条件 import copy self.params = copy.deepcopy(request.GET) @property def start(self): return (self.current_page_num - 1) * self.per_page_num @property def end(self): return self.current_page_num * self.per_page_num def page_html(self): # 如果总页码<11个 if self.all_pager <= self.pager_count: pager_start = 1 pager_end = self.all_pager + 1 # 总页码>11 else: # 当前页没有前5页 if self.current_page_num <= self.pager_count_half: pager_start = 1 pager_end = self.pager_count + 1 # 当前页大于5 else: # 当前页没有后5页 if (self.current_page_num + self.pager_count_half) > self.all_pager: pager_start = self.all_pager - self.pager_count +1 pager_end = self.all_pager + 1 else: pager_start = self.current_page_num - self.pager_count_half pager_end = self.current_page_num + self.pager_count_half +1 page_html_list = [] self.params["page"] = 1 first_page = '<li><a href="?%s">首页</a></li>' % (self.params.urlencode()) page_html_list.append(first_page) if self.current_page_num <= 1: prev_page = '<li class="disabled"><a href="#">上一页</a></li>' else: self.params["page"] = self.current_page_num - 1 prev_page = '<li><a href="?%s">上一页</a></li>' % (self.params.urlencode(),) page_html_list.append(prev_page) for i in range(pager_start,pager_end): self.params["page"] = i if i == self.current_page_num: temp = '<li class="active"><a href="?%s">%s</a></li>' %(self.params.urlencode(),i) else: temp = '<li><a href="?%s">%s</a></li>' % (self.params.urlencode(),i,) page_html_list.append(temp) if self.current_page_num >= self.all_pager: next_page = '<li class="disabled"><a href="#">下一页</a></li>' else: self.params["page"] = self.current_page_num + 1 next_page = '<li><a href="?%s">下一页</a></li>' % (self.params.urlencode(),) page_html_list.append(next_page) self.params["page"] = self.all_pager last_page = '<li><a href="?%s">尾页</a></li>' % (self.params.urlencode()) page_html_list.append(last_page) return "".join(page_html_list)
CBV
FBV-----function based view CBV-----class based view path('index/', views.index), path('login/', views.LoginView.as_view()), path('login/', View.as_view.view) # 用户访问get请求/login/-----------view(request) def view(request): self = cls(**initkwargs) return self.dispatch(request, *args, **kwargs) def dispatch(request, *args, **kwargs): if request.method.lower() in self.http_method_names: handler = getattr(self, request.method.lower(), self.http_method_not_allowed) else: handler = self.http_method_not_allowed return handler(request, *args, **kwargs)