这篇文章主要介绍了Python Django 封装分页成通用的模块详解,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下
新建 utils 文件夹，并创建 page.py
page.py：
class ShowPage(object): def __init__(self, page_num, total_count, url_prefix, per_page=10, max_page=11): ''' :param page_num: 当前页码数 :param total_count: 数据总数 :param url_prefix: a 标签 href 的前缀 :param per_page: 每页展示的数据数 :param max_page: 页面上最多显示的页码数 ''' self.url_prefix = url_prefix self.max_page = max_page # 总共需要多少页码来显示 total_page, m = divmod(total_count, per_page) # 如果还有数据 if m: total_page += 1 self.total_page = total_page try: page_num = int(page_num) # 如果输入的页码数超过了最大的页码数，默认返回最后一页 if page_num > self.total_page: page_num = self.total_page # 如果输入的页码数小于 1，则返回第一页 if page_num < 1: page_num = 1 except Exception as e: # 当输入的页码不是正经数字的时候 默认返回第一页的数据 page_num = 1 self.page_num = page_num # 定义两个变量保存数据从哪儿取到哪儿 self.data_start = (self.page_num - 1) * 10 self.data_end = self.page_num * 10 # 页面上总共展示多少页码 if self.total_page < self.max_page: self.max_page = self.total_page half_max_page = self.max_page // 2 # 页面上展示的页码的开始页 page_start = self.page_num - half_max_page # 页面上展示的页码的结束页 page_end = self.page_num + half_max_page # 如果当前页减一半比 1 还小 if page_start <= 1: page_start = 1 page_end = self.max_page # 如果当前页加一半比总页码还大 if page_end >= self.total_page: page_end = self.total_page page_start = self.total_page - self.max_page + 1 self.page_start = page_start self.page_end = page_end @property def start(self): return self.data_start @property def end(self): return self.data_end def page_html(self): # 拼接 html 的分页代码 html_list = [] # 添加首页按钮 html_list.append('<li><a href="{}?page=1" rel="external nofollow" >首页</a></li>'.format( self.url_prefix)) # 如果是第一页，就没有上一页 if self.page_num <= 1: html_list.append('<li class="disabled"><a href="#" rel="external nofollow" rel="external nofollow" ><span aria-hidden="true">«</span></a></li>'.format(self.page_num - 1)) else: # 加一个上一页的标签 html_list.append('<li><a href="{}?page={}" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><span aria-hidden="true">«</span></a></li>'.format(self.url_prefix, self.page_num-1)) # 展示的页码 for i in range(self.page_start, self.page_end + 1): # 给当前页添加 active if i == self.page_num: tmp = '<li class="active"><a href="{0}?page={1}" rel="external nofollow" rel="external nofollow" >{1}</a></li>'.format(self.url_prefix, i) else: tmp = '<li><a href="{0}?page={1}" rel="external nofollow" rel="external nofollow" >{1}</a></li>'.format(self.url_prefix, i) html_list.append(tmp) # 如果是最后一页，就没有下一页 if self.page_num >= self.total_page: html_list.append('<li class="disabled"><a href="#" rel="external nofollow" rel="external nofollow" ><span aria-hidden="true">»</span></a></li>') else: html_list.append( '<li><a href="{}?page={}" rel="external nofollow" rel="external nofollow" rel="external nofollow" ><span aria-hidden="true">»</span></a></li>'.format(self.url_prefix, self.page_num + 1)) # 添加尾页按钮 html_list.append('<li><a href="{}?page={}" rel="external nofollow" rel="external nofollow" rel="external nofollow" >尾页</a></li>'.format(self.url_prefix, self.total_page)) page_html = "".join(html_list) # 拼接 html 的分页代码 return page_htmlviews.py：
from django.shortcuts import renderfrom app01 import models def book_list(request): # 从URL取参数 page_num = request.GET.get("page") print(page_num, type(page_num)) # 书籍总数 total_count = models.Book.objects.all().count() # 导入显示页码的函数 from utils.page import ShowPage page_obj = ShowPage(page_num, total_count, per_page=10, url_prefix="/book_list/", max_page=11, ) ret = models.Book.objects.all()[page_obj.start:page_obj.end] print(ret) page_html = page_obj.page_html() return render(request, "book_list.html", {"books": ret, "page_html": page_html})book_list.html：
<!DOCTYPE html><html lang="en"><head> <meta charset="UTF-8"> <title>书籍列表</title> <link rel="stylesheet" href="/static/bootstrap/css/bootstrap.min.css" rel="external nofollow" ></head><body> <div class="container"> <table class="table table-bordered"> <thead> <tr> <th>序号</th> <th>id</th> <th>书名</th> </tr> </thead> <tbody> {% for book in books %} <tr> <td>{{ forloop.counter }}</td> <td>{{ book.id }}</td> <td>{{ book.title }}</td> </tr> {% endfor %} </tbody> </table> <nav aria-label="Page navigation"> <ul class="pagination"> <li> {{ page_html|safe }} </li> </ul> </nav> </div></body></html>以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持武林网。
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