url文件
from django.contrib import admin from django.conf.urls import url from app01 import views urlpatterns = [ url(r'^user_list', views.user_list) ]
对views文件
def user_list(request): pagesizenumber = request.COOKIES.get('pagesizenumber', 10) #获取COOKIE传过来的key('pagesizenumber'), 默认为10 current_number = request.GET.get('p', 1) #获得前端a的？p = 的值,此为当前页码数 one_page_number = 11 #每页显示的页码数 pagefi = pagenation.Page(List, pagesizenumber, current_number, one_page_number) #生成类 (show_page, list_page) = pagefi.page_str() #返回两个参数 return render(request, 'user_list.html', {'show_page' : show_page, 'list_page': list_page})
对于上述的pagenation.Page 中为Page.py 文件
from django.utils.safestring import mark_safe class Page: def __init__(self, List, pagesizenumber, current_number, one_page_number = 11): # List 输入传入的数据, pagesizenumber 每页显示的数据量，current_number 当前页码， one_page_number：每页页码数,默认11 self.pagesizenumber = pagesizenumber self.current_number = current_number self.one_page_number = one_page_number self.List = List @property def page_number(self): self.one_math_number = int(self.pagesizenumber) page_number, v = divmod(len(self.List), self.one_math_number) # page_number 总页码数， 计算所需要的总页码数 return page_number @property def show_page(self): self.current_number = int(self.current_number) #当前页码数 self.one_math_number = int(self.pagesizenumber) page_number, v = divmod(len(self.List), self.one_math_number) #计算得需要的总页码数 if v > 0: page_number += 1 # 如果大于1， 页码数+1 show_page = self.List[(self.current_number - 1) * self.one_math_number:self.current_number * self.one_math_number] # 显示在页面的数 return show_page def page_str(self): list_page = [] self.current_number = int(self.current_number) self.one_math_number = int(self.pagesizenumber) self.one_page_number = int(self.one_page_number) if self.page_number < self.one_page_number: # 总页码数小于单页页码数 start_page = 1 end_page = int(self.page_number) + 1 else: # 总页码数大于单页码数 if self.current_number <= int((self.one_page_number + 1) / 2): # 当前页码 小于 单页页码数中间 start_page = 1 end_page = int(self.one_page_number) + 1 print(start_page) print(end_page) elif self.page_number - int((self.one_page_number - 1) / 2) > self.current_number > int( (self.one_page_number + 1) / 2): # 当前页码数 大于 单页页码数中间 小于 总页码数-单页页码中间 #开始发生变化 start_page = int(self.current_number - ((self.one_page_number) - 1) / 2) end_page = int(self.current_number + ((self.one_page_number) + 1) / 2) else: start_page = self.page_number - self.one_page_number # 当前页码数大于总页码数-单页页码中间 end_page = self.page_number + 1 # 上一页按钮 if self.current_number == 1: x = ("<a class='paging active' href='#'>上一页</a>") else: x = ("<a class='paging active' href='/user_list/?p=%s'>上一页</a>" % (self.current_number - 1,)) list_page.append(x) # 添加a标签 for i in range(start_page, end_page): if i == self.current_number: x = ("<a class='paging active' href='/user_list/?p=%s'>%s</a>" % (i, i)) else: x = ("<a class='paging' href='/user_list/?p=%s'>%s</a>" % (i, i)) list_page.append(x) # 下一页按钮 if self.current_number == self.page_number: x = ("<a class='paging active' href='#'>下一页</a>") else: x = ("<a class='paging active' href='/user_list/?p=%s'>下一页</a>" % (self.current_number + 1,)) list_page.append(x) x = ''' <input type="text"><a onclick = 'jumpTo(this, "/user_list/?p=")';>Go</a> <script> function jumpTo(ths, base){ var val = ths.previousSibling.value; location.href = base + val; } </script> ''' # ths.previousSibling.value 找出在其上面的input的value值 # location.href = base + val 跳转 # x = ''' # <input type='text' ><a onclick='jumpTo(this, "/user_list/?p=")';>Go</a> # <script> # function jumpTo(ths,base){ # var val = ths.previousSibling.value; # location.href = base + val; # } # </script> # ''' list_page.append(x) list_page = ''.join(list_page) print(list_page) list_page = mark_safe(list_page) return self.show_page, list_page
对于user_list.html文件
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <style> .pagination .paging{ padding: 5px; margin: 5px; background-color: aqua; color: white; } .pagination .paging.active{ background-color: red; color: white; } </style> </head> <body> <ul> {% for i in show_page %} <li>{{ i }}</li> {% endfor %} </ul> {# {% for i in list_page %}#} {# <a class='paging' href="/user_list/?p={{ i }}">{{ i }}</a>#} {# {% endfor %}#} <div class = pagination> {{ list_page }} </div> {# onchange 检测改变#} <select id = 'i1' onchange="changePageSize(this)"> <option value="10">10</option> <option value="30">30</option> <option value="50">50</option> <option value="100">100</option> </select> <script src = '/static/jquery-3.3.1.js'></script> <script src="/static/jquery.cookie.js"></script> <script> {# 文件一进来就执行该操作, 获得pagesizenumber值，改变values， 初始值为10#} $(function () { var v = $.cookie('pagesizenumber'); if (v){$('#i1').val(v);} else{$('#i1').val(10)} }); function changePageSize(ths) { var v = $(ths).val(); $.cookie('pagesizenumber', v, {path:'/user_list/'}); location.reload(); {# 刷新实现跳转#} } </script> </body> </html>
