Django内置了分页设置，但不够灵活，需要我们自定义分页。
下面代码考虑了利用bootstrap分页组件来实现页面美化，如果不想使用，可以不调用url_format_by_bootstrap函数，即可实现普通分页。
具体的参数和代码均有注释
#! python3
# @Project: mysite2 - pager.py
# @Info : 自定义分页操作
import re
class PageInfo:
"""
:param current_page 当前页码
:param data 要分页的数据
:param path 路由地址(用于生成动态路径)
:param per_page 每页显示条数
:param show_page 显示页码跨度
"""
def __init__(self, current_page, data, path, per_page=10, show_page=10):
self.current_page = current_page
self.per_page = per_page
self.show_page = show_page
self.data = data
self.path = path
self.all_page = self.get_all_page()
def get_all_page(self):
"""计算总页数"""
result, mod = divmod(len(self.data), self.per_page)
if mod:
return result + 1
else:
return result
def create_page(self):
"""创建页码列表"""
if not (isinstance(self.show_page, int) | self.show_page < 1):
self.show_page = 10
half = self.show_page // 2
start = self.current_page - half
end = self.current_page + half
# 避免出现负数页
if self.current_page - half <= 0:
start = 1
if self.current_page + half > self.all_page:
end = self.all_page
# 若当前页靠近两端，保持页面达到show_page的数量
if self.current_page <= half:
end = self.show_page + 1
if self.current_page >= self.all_page - half:
start = self.all_page - self.show_page
# 上下页
page_list = []
pre_page = self.current_page - 1 if self.current_page - 1 > 0 else 1
next_page = self.current_page + 1 if self.current_page + 1 < self.all_page else self.all_page
# 将生成的页码标签添加进page_list
page_list.append(self.get_page_url(self.path, '上一页', pre_page))
for i in range(start, end + 1):
url = self.get_page_url(self.path, i, i)
page_list.append(url)
page_list.append(self.get_page_url(self.path, '下一页', next_page))
return self.url_format_by_bootstrap(page_list)
def per_page_content(self, data):
"""计算每页内容"""
start_index = (self.current_page - 1) * self.per_page
end_index = self.current_page * self.per_page
return data[start_index:end_index]
# 声明为静态方法，未使用类中变量
@staticmethod
def get_page_url(path, text, num):
"""获取动态页码链接"""
url = '
{2}
'.format(path, num, text)
return url
def url_format_by_bootstrap(self, page_list):
"""将url转化为bootstrap分页需要的格式"""
pre_url = re.findall('href="(.*?)"', page_list[0])[0]
next_url = re.findall('href="(.*?)"', page_list[-1])[0]
page_list[0] = '''
'''.format(pre_url)
page_list[-1] = '''
'''.format(next_url)
for index, page in enumerate(page_list[1:-1]):
# 将当前页设置为选中状态
page_num = int(re.search(r'page=(\d+)', page).group(1))
if self.current_page == page_num:
page_list[index + 1] = '
{0}
'.format(page)
continue
page_list[index + 1] = '
{0}
'.format(page)
return page_list
在view页面只需要传参数就可生成页码
import logging
from django.http import HttpResponse
from django.shortcuts import render
from . import models
from utils.pager import PageInfo
def index(request):
"""首页"""
try:
current_page_num = int(request.GET['page'])
except Exception as e:
logging.log(logging.ERROR, e)
current_page_num = 1
data = models.UserInfo.objects.all()
page_info = PageInfo(current_page_num, data, '/index')
page_list = page_info.create_page()
user_list = page_info.per_page_content(data)
return render(request, 'index.html', {'user_list': user_list, 'page_list': page_list})
由于是后端动态生成页码标签，前段直接遍历即可。
这里应用了bootstrap样式。
Title
用户列表
{% for row in user_list %}
-
{{ row.username }}
{% endfor %}
具体效果如下：
