各类前后端插件及应用

Posted 2020-09-29

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了各类前后端插件及应用相关的知识，希望对你有一定的参考价值。

bxslider 轮播图插件

官网

下载

http://bxslider.com/lib/jquery.bxslider.zip

实例

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="jquery.bxslider/jquery.bxslider.css" />
</head>
<body>
    <ul class="bxslider">
        <li><img src="images/1.jpg" /></li>
          <li><img src="images/2.jpg" /></li>
          <li><img src="images/3.jpg" /></li>
          <li><img src="images/4.jpg" /></li>
    </ul>
    <script src="jquery-1.12.4.js"></script>
    <script src="jquery.bxslider/jquery.bxslider.js"></script>
    <script>
        $(document).ready(function(){
            $(‘.bxslider‘).bxSlider();
        });
    </script>
</body>
</html>

KindEditor 编辑框插件

官网

下载

http://kindeditor.net/down.php

http://files.cnblogs.com/files/wupeiqi/kindeditor_a5.zip

文件夹说明

├── asp                          asp示例
├── asp.net                    asp.net示例
├── attached                  空文件夹，放置关联文件attached
├── examples                 HTML示例
├── jsp                          java示例
├── kindeditor-all-min.js 全部JS（压缩）
├── kindeditor-all.js        全部JS（未压缩）
├── kindeditor-min.js      仅KindEditor JS（压缩）
├── kindeditor.js            仅KindEditor JS（未压缩）
├── lang                        支持语言
├── license.txt               License
├── php                        PHP示例
├── plugins                    KindEditor内部使用的插件
└── themes                   KindEditor主题

实例

<textarea name="content" id="content"></textarea>
 
<script src="/static/jquery-1.12.4.js"></script>
<script src="/static/plugins/kind-editor/kindeditor-all.js"></script>
<script>
    $(function () {
        initKindEditor();
    });
 
    function initKindEditor() {
        var kind = KindEditor.create(‘#content‘, {
            width: ‘100%‘,       // 文本框宽度(可以百分比或像素)
            height: ‘300px‘,     // 文本框高度(只能像素)
            minWidth: 200,       // 最小宽度（数字）
            minHeight: 400      // 最小高度（数字）
        });
    }
</script>

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
</head>
<body>

<div>
    <h1>文章内容</h1>
    {{ request.POST.content|safe }}
</div>


<form method="POST">
    <h1>请输入内容：</h1>
    {% csrf_token %}
    <div style="width: 500px; margin: 0 auto;">
        <textarea name="content" id="content"></textarea>
    </div>
    <input type="submit" value="提交"/>
</form>

<script src="/static/jquery-1.12.4.js"></script>
<script src="/static/plugins/kind-editor/kindeditor-all.js"></script>
<script>
    $(function () {
        initKindEditor();
    });

    function initKindEditor() {
        var a = ‘kind‘;
        var kind = KindEditor.create(‘#content‘, {
            width: ‘100%‘,       // 文本框宽度(可以百分比或像素)
            height: ‘300px‘,     // 文本框高度(只能像素)
            minWidth: 200,       // 最小宽度（数字）
            minHeight: 400,      // 最小高度（数字）
            uploadJson: ‘/kind/upload_img/‘,
            extraFileUploadParams: {
                ‘csrfmiddlewaretoken‘: ‘{{ csrf_token }}‘
            },
            fileManagerJson: ‘/kind/file_manager/‘,
            allowPreviewEmoticons: true,
            allowImageUpload: true
        });
    }
</script>
</body>
</html>

上传文件 html

import os
import json
import time

from django.shortcuts import render
from django.shortcuts import HttpResponse


def index(request):
    """
    首页
    :param request:
    :return:
    """
    return render(request, ‘index.html‘)


def upload_img(request):
    """
    文件上传
    :param request:
    :return:
    """
    dic = {
        ‘error‘: 0,
        ‘url‘: ‘/static/imgs/20130809170025.png‘,
        ‘message‘: ‘错误了...‘
    }

    return HttpResponse(json.dumps(dic))


def file_manager(request):
    """
    文件管理
    :param request:
    :return:
    """
    dic = {}
    root_path = ‘/Users/wupeiqi/PycharmProjects/editors/static/‘
    static_root_path = ‘/static/‘
    request_path = request.GET.get(‘path‘)
    if request_path:
        abs_current_dir_path = os.path.join(root_path, request_path)
        move_up_dir_path = os.path.dirname(request_path.rstrip(‘/‘))
        dic[‘moveup_dir_path‘] = move_up_dir_path + ‘/‘ if move_up_dir_path else move_up_dir_path

    else:
        abs_current_dir_path = root_path
        dic[‘moveup_dir_path‘] = ‘‘

    dic[‘current_dir_path‘] = request_path
    dic[‘current_url‘] = os.path.join(static_root_path, request_path)

    file_list = []
    for item in os.listdir(abs_current_dir_path):
        abs_item_path = os.path.join(abs_current_dir_path, item)
        a, exts = os.path.splitext(item)
        is_dir = os.path.isdir(abs_item_path)
        if is_dir:
            temp = {
                ‘is_dir‘: True,
                ‘has_file‘: True,
                ‘filesize‘: 0,
                ‘dir_path‘: ‘‘,
                ‘is_photo‘: False,
                ‘filetype‘: ‘‘,
                ‘filename‘: item,
                ‘datetime‘: time.strftime(‘%Y-%m-%d %H:%M:%S‘, time.gmtime(os.path.getctime(abs_item_path)))
            }
        else:
            temp = {
                ‘is_dir‘: False,
                ‘has_file‘: False,
                ‘filesize‘: os.stat(abs_item_path).st_size,
                ‘dir_path‘: ‘‘,
                ‘is_photo‘: True if exts.lower() in [‘.jpg‘, ‘.png‘, ‘.jpeg‘] else False,
                ‘filetype‘: exts.lower().strip(‘.‘),
                ‘filename‘: item,
                ‘datetime‘: time.strftime(‘%Y-%m-%d %H:%M:%S‘, time.gmtime(os.path.getctime(abs_item_path)))
            }

        file_list.append(temp)
    dic[‘file_list‘] = file_list
    return HttpResponse(json.dumps(dic))

上传文件 view

XSS过滤特殊标签

pip3 install beautifulsoup4

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from bs4 import BeautifulSoup


class XSSFilter(object):
    __instance = None

    def __init__(self):
        # XSS白名单
        self.valid_tags = {
            "font": [‘color‘, ‘size‘, ‘face‘, ‘style‘],
            ‘b‘: [],
            ‘div‘: [],
            "span": [],
            "table": [
                ‘border‘, ‘cellspacing‘, ‘cellpadding‘
            ],
            ‘th‘: [
                ‘colspan‘, ‘rowspan‘
            ],
            ‘td‘: [
                ‘colspan‘, ‘rowspan‘
            ],
            "a": [‘href‘, ‘target‘, ‘name‘],
            "img": [‘src‘, ‘alt‘, ‘title‘],
            ‘p‘: [
                ‘align‘
            ],
            "pre": [‘class‘],
            "hr": [‘class‘],
            ‘strong‘: []
        }

    @classmethod
    def instance(cls):
        if not cls.__instance:
            obj = cls()
            cls.__instance = obj
        return cls.__instance

    def process(self, content):
        soup = BeautifulSoup(content, ‘lxml‘)
        # 遍历所有HTML标签
        for tag in soup.find_all(recursive=True):
            # 判断标签名是否在白名单中
            if tag.name not in self.valid_tags:
                tag.hidden = True
                if tag.name not in [‘html‘, ‘body‘]:
                    tag.hidden = True
                    tag.clear()
                continue
            # 当前标签的所有属性白名单
            attr_rules = self.valid_tags[tag.name]
            keys = list(tag.attrs.keys())
            for key in keys:
                if key not in attr_rules:
                    del tag[key]

        return soup.renderContents()


if __name__ == ‘__main__‘:
    html = """<p class="title">
                        <b>The Dormouse‘s story</b>
                    </p>
                    <p class="story">
                        <div name=‘root‘>
                            Once upon a time there were three little sisters; and their names were
                            <a href="http://example.com/elsie" class="sister c1" style=‘color:red;background-color:green;‘ id="link1"><!-- Elsie --></a>
                            <a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
                            <a href="http://example.com/tillie" class="sister" id="link3">Tilffffffffffffflie</a>;
                            and they lived at the bottom of a well.
                            <script>alert(123)</script>
                        </div>
                    </p>
                    <p class="story">...</p>"""

    v = XSSFilter.instance().process(html)
    print(v)

XSS实例

#!/usr/bin/env python
# -*- coding:utf-8 -*-
from bs4 import BeautifulSoup


class XSSFilter(object):
    __instance = None

    def __init__(self):
        # XSS白名单
        self.valid_tags = {
            "font": [‘color‘, ‘size‘, ‘face‘, ‘style‘],
            ‘b‘: [],
            ‘div‘: [],
            "span": [],
            "table": [
                ‘border‘, ‘cellspacing‘, ‘cellpadding‘
            ],
            ‘th‘: [
                ‘colspan‘, ‘rowspan‘
            ],
            ‘td‘: [
                ‘colspan‘, ‘rowspan‘
            ],
            "a": [‘href‘, ‘target‘, ‘name‘],
            "img": [‘src‘, ‘alt‘, ‘title‘],
            ‘p‘: [
                ‘align‘
            ],
            "pre": [‘class‘],
            "hr": [‘class‘],
            ‘strong‘: []
        }

    def __new__(cls, *args, **kwargs):
        """
        单例模式
        :param cls:
        :param args:
        :param kwargs:
        :return:
        """
        if not cls.__instance:
            obj = object.__new__(cls, *args, **kwargs)
            cls.__instance = obj
        return cls.__instance

    def process(self, content):
        soup = BeautifulSoup(content, ‘lxml‘)
        # 遍历所有HTML标签
        for tag in soup.find_all(recursive=True):
            # 判断标签名是否在白名单中
            if tag.name not in self.valid_tags:
                tag.hidden = True
                if tag.name not in [‘html‘, ‘body‘]:
                    tag.hidden = True
                    tag.clear()
                continue
            # 当前标签的所有属性白名单
            attr_rules = self.valid_tags[tag.name]
            keys = list(tag.attrs.keys())
            for key in keys:
                if key not in attr_rules:
                    del tag[key]

        return soup.renderContents()


if __name__ == ‘__main__‘:
    html = """<p class="title">
                        <b>The Dormouse‘s story</b>
                    </p>
                    <p class="story">
                        <div name=‘root‘>
                            Once upon a time there were three little sisters; and their names were
                            <a href="http://example.com/elsie" class="sister c1" style=‘color:red;background-color:green;‘ id="link1"><!-- Elsie --></a>
                            <a href="http://example.com/lacie" class="sister" id="link2">Lacie</a> and
                            <a href="http://example.com/tillie" class="sister" id="link3">Tilffffffffffffflie</a>;
                            and they lived at the bottom of a well.
                            <script>alert(123)</script>
                        </div>
                    </p>
                    <p class="story">...</p>"""

    obj = XSSFilter()
    v = obj.process(html)
    print(v)

基于__new__实现单例模式示例

随机验证码

创建随机验证码图片

依赖Pillow、字体文件

安装Pillow: pip3 install Pillow

#!/usr/bin/env python
# -*- coding:utf-8 -*-

import random
from PIL import Image, ImageDraw, ImageFont, ImageFilter

_letter_cases = "abcdefghjkmnpqrstuvwxy"  # 小写字母，去除可能干扰的i，l，o，z
_upper_cases = _letter_cases.upper()  # 大写字母
_numbers = ‘‘.join(map(str, range(3, 10)))  # 数字
init_chars = ‘‘.join((_letter_cases, _upper_cases, _numbers))


def create_validate_code(size=(120, 30),
                         chars=init_chars,
                         img_type="GIF",
                         mode="RGB",
                         bg_color=(255, 255, 255),
                         fg_color=(0, 0, 255),
                         font_size=18,
                         font_type="Monaco.ttf",
                         length=4,
                         draw_lines=True,
                         n_line=(1, 2),
                         draw_points=True,
                         point_chance=2):
    """
    @todo: 生成验证码图片
    @param size: 图片的大小，格式（宽，高），默认为(120, 30)
    @param chars: 允许的字符集合，格式字符串
    @param img_type: 图片保存的格式，默认为GIF，可选的为GIF，JPEG，TIFF，PNG
    @param mode: 图片模式，默认为RGB
    @param bg_color: 背景颜色，默认为白色
    @param fg_color: 前景色，验证码字符颜色，默认为蓝色#0000FF
    @param font_size: 验证码字体大小
    @param font_type: 验证码字体，默认为 ae_AlArabiya.ttf
    @param length: 验证码字符个数
    @param draw_lines: 是否划干扰线
    @param n_lines: 干扰线的条数范围，格式元组，默认为(1, 2)，只有draw_lines为True时有效
    @param draw_points: 是否画干扰点
    @param point_chance: 干扰点出现的概率，大小范围[0, 100]
    @return: [0]: PIL Image实例
    @return: [1]: 验证码图片中的字符串
    """

    width, height = size  # 宽高
    # 创建图形
    img = Image.new(mode, size, bg_color)
    draw = ImageDraw.Draw(img)  # 创建画笔

    def get_chars():
        """生成给定长度的字符串，返回列表格式"""
        return random.sample(chars, length)

    def create_lines():
        """绘制干扰线"""
        line_num = random.randint(*n_line)  # 干扰线条数

        for i in range(line_num):
            # 起始点
            begin = (random.randint(0, size[0]), random.randint(0, size[1]))
            # 结束点
            end = (random.randint(0, size[0]), random.randint(0, size[1]))
            draw.line([begin, end], fill=(0, 0, 0))

    def create_points():
        """绘制干扰点"""
        chance = min(100, max(0, int(point_chance)))  # 大小限制在[0, 100]

        for w in range(width):
            for h in range(height):
                tmp = random.randint(0, 100)
                if tmp > 100 - chance:
                    draw.point((w, h), fill=(0, 0, 0))

    def create_strs():
        """绘制验证码字符"""
        c_chars = get_chars()
        strs = ‘ %s ‘ % ‘ ‘.join(c_chars)  # 每个字符前后以空格隔开

        font = ImageFont.truetype(font_type, font_size)
        font_width, font_height = font.getsize(strs)

        draw.text(((width - font_width) / 3, (height - font_height) / 3),
                  strs, font=font, fill=fg_color)

        return ‘‘.join(c_chars)

    if draw_lines:
        create_lines()
    if draw_points:
        create_points()
    strs = create_strs()

    # 图形扭曲参数
    params = [1 - float(random.randint(1, 2)) / 100,
              0,
              0,
              0,
              1 - float(random.randint(1, 10)) / 100,
              float(random.randint(1, 2)) / 500,
              0.001,
              float(random.randint(1, 2)) / 500
              ]
    img = img.transform(size, Image.PERSPECTIVE, params)  # 创建扭曲

    img = img.filter(ImageFilter.EDGE_ENHANCE_MORE)  # 滤镜，边界加强（阈值更大）

    return img, strs

check_code.py

通过check_code返回图片的obj和随机字符串

将图片保存，并将随机字符串保存到session中

再通过BytesIO将生成的图片保存到内存中

from utils.check_code import create_validate_code

def check_code(request):
    """
    验证码
    :param request:
    :return:
    """

    stream = BytesIO()
    img, code = create_validate_code()
    img.save(stream,‘PNG‘)
    request.session[‘CheckCode‘] = code
    return HttpResponse(stream.getvalue())

简单判断用户输入

class Login(View):
    """
    登录
    """

    def get(self, request):
        return render(request, ‘login.html‘)

    def post(self, request):
        code = request.POST.get(‘check_code‘)
        if code.upper() == request.session[‘CheckCode‘].upper():
            print(‘验证码正确‘)
        else:
            print(‘验证码错误‘)
        return render(request, ‘login.html‘)

思路

结合session

check_code.py(依赖Pillow、字体)

点击更换时，要将src属性后面+？，这里可以通过js或jQuery实现

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <link rel="stylesheet" href="/static/plugins/bootstrap/css/bootstrap.css"/>
    <link rel="stylesheet" href="/static/plugins/font-awesome/css/font-awesome.css"/>
    <link rel="stylesheet" href="/static/css/edmure.css"/>
    <link rel="stylesheet" href="/static/css/commons.css"/>
    <link rel="stylesheet" href="/static/css/account.css"/>
    <style>

    </style>
</head>
<body>
<div class="login">
    <div style="font-size: 25px; font-weight: bold;text-align: center;">
        用户登录
    </div>
    <form role="form" action="/login.html" method="POST">
        {% csrf_token %}
        <div class="form-group">
            <label for="username">用户名</label>
            <input type="text" class="form-control"  placeholder="请输入用户名">
        </div>
        <div class="form-group">
            <label for="password">密码</label>
            <input type="password" class="form-control"  placeholder="请输入密码">
        </div>
        <div class="form-group">
            <label for="password">验证码</label>

            <div class="row">
                <div class="col-xs-7">
                    <input type="text" class="form-control" placeholder="请输入验证码" name="check_code">
                </div>
                <div class="col-xs-5">
                    <img src="/check_code.html" onclick="changeCheckCode(this);">
                    <!-- <img src="/static/imgs/avatar/20130809170025.png"> -->
                </div>
            </div>

        </div>
        <div class="checkbox">
            <label>
                <input type="checkbox"> 一个月内自动登录
            </label>
            <div class="right">
                <a href="#">忘记密码？</a>
            </div>
        </div>
        <button type="submit" class="btn btn-default">登 录</button>
    </form>
</div>
    <script>
        function changeCheckCode(ths){
            ths.src = ths.src +  ‘?‘;
        }
    </script>
</body>
</html>

// 点击验证码图片进行更换
$(function () {
    $("#code_img").click(function () {
        var url = $(this).attr("src");
        var new_url = url + "?";
        $(this).attr("src", new_url);
    });
});

change_check_code.js

自定义分页

XSS

有下面一段代码，想将这段代码中的字符串渲染到HTML页面中，默认Django是不能这样去操作的

def user_list(request):
    page_str = """
        <a href="/user_list/?p=1">1</a>
        <a href="/user_list/?p=2">2</a>
        <a href="/user_list/?p=3">3</a>
    """
    return render(request, "user_list.html", {"page_str": page_str})

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <ul>
        {% for item in li %}
            {% include "li.html" %}
        {% endfor %}
    </ul>
    <div>
        {{ page_str }}
    </div>
</body>
</html>

<li>{{ item }}</li>

渲染后的页面只能以字符串的形式显示我们传入的HTML代码

Django认为这存在危险，可能会存在代码被注入的可能，我们可以通过下面两种方式解决

模板的方式

{{ page_str|safe }}

视图方式

from django.utils.safestring import mark_safe
 
def user_list(request):
    page_str = """
        <a href="/user_list/?p=1">1</a>
        <a href="/user_list/?p=2">2</a>
        <a href="/user_list/?p=3">3</a>
    """
    page_str = mark_safe(page_str)
    return render(request, "user_list.html", {"page_str": page_str})

分页1

from django.conf.urls import url
from django.contrib import admin
from django.conf.urls import include
from app01 import views
 
urlpatterns = [
    url(r‘^admin/‘, admin.site.urls),
    url(r‘^user_list/‘, views.user_list),
]

urls.py

from django.shortcuts import render
from django.shortcuts import HttpResponse
# Create your views here.
from django.urls import reverse
 
from django.utils.safestring import mark_safe
 
LIST = []
for i in range(109):
    LIST.append(i)
 
 
def user_list(request):
    current_page = request.GET.get("p", 1)
    current_page = int(current_page)
    start = (current_page - 1) * 10
    end = current_page * 10
    data = LIST[start:end]
 
    # 总个数
    all_count = len(LIST)
    # 取商、余数
    count, y = divmod(all_count, 10)
     
    if y:
        count += 1
         
    page_list = []
     
    for i in range(1, count+1):
        if i == current_page:
            temp = ‘<a class="page active" href="/user_list/?p=%s">%s</a>‘ % (i, i)
        else:
            temp = ‘<a class="page" href="/user_list/?p=%s">%s</a>‘ % (i, i)
        page_list.append(temp)
 
    page_str = "".join(page_list)
    page_str = mark_safe(page_str)
    return render(request, "user_list.html", {"li": data, "page_str": page_str})

views.py

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .pagination .page{
            display: inline-block;
            padding: 5px;
            background-color: cyan;
            margin: 5px;
        }
        .pagination .page.active{
            background-color: brown;
            color: black;
        }
    </style>
</head>
<body>
    <ul>
        {% for item in li %}
            {% include "li.html" %}
        {% endfor %}
    </ul>
    <div class="pagination">
        {{ page_str }}
    </div>
</body>
</html>

user_list.html

分页2

from django.shortcuts import render
from django.shortcuts import HttpResponse
# Create your views here.
from django.urls import reverse
 
from django.utils.safestring import mark_safe
 
LIST = []
for i in range(1009):
    LIST.append(i)
 
 
def user_list(request):
    current_page = request.GET.get("p", 1)
    # 当前页数
    current_page = int(current_page)
 
    per_page_count = 10
 
    start = (current_page - 1) * per_page_count
    end = current_page * per_page_count
    data = LIST[start:end]
 
    # 总个数
    all_count = len(LIST)
    # 取商、余数
    total_count, y = divmod(all_count, per_page_count)
    if y:
        total_count += 1
    page_list = []
 
    pager_num = 11
 
    if total_count < pager_num:
        start_index = 1
        end_index = total_count + 1
    else:
        if current_page <= (pager_num+1)/2:
            start_index = 1
            end_index = pager_num + 1
        else:
            start_index = current_page - (pager_num-1)/2
            end_index = current_page + (pager_num+1)/2
            if (current_page + (pager_num-1)/2) > total_count:
                end_index = total_count + 1
                start_index = total_count - pager_num + 1
 
    if current_page == 1:
        prev = ‘<a class="page" href="#">上一页</a>‘
    else:
        prev = ‘<a class="page" href="/user_list/?p=%s">上一页</a>‘ % (current_page - 1)
    page_list.append(prev)
 
    for i in range(int(start_index), int(end_index)):
        if i == current_page:
            temp = ‘<a class="page active" href="/user_list/?p=%s">%s</a>‘ % (i, i)
        else:
            temp = ‘<a class="page" href="/user_list/?p=%s">%s</a>‘ % (i, i)
        page_list.append(temp)
 
    if current_page == total_count:
        nex = ‘<a class="page" href="#">下一页</a>‘
    else:
        nex = ‘<a class="page" href="/user_list/?p=%s">下一页</a>‘ % (current_page + 1)
    page_list.append(nex)
 
    jump = """
    <input type=‘text‘ /><a id=‘ii1‘ onclick=‘jumpTo(this, "/user_list/?p=");‘>GO</a>
    <script>
        function jumpTo(ths, base){
            var val = ths.previousSibling.value;
            location.href = base + val;
        }
    </script>
    """
    page_list.append(jump)
 
    page_str = "".join(page_list)
    page_str = mark_safe(page_str)
    return render(request, "user_list.html", {"li": data, "page_str": page_str})

views.py

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .pagination .page{
            display: inline-block;
            padding: 5px;
            background-color: cyan;
            margin: 5px;
        }
        .pagination .page.active{
            background-color: brown;
            color: black;
        }
    </style>
</head>
<body>
    <ul>
        {% for item in li %}
            {% include "li.html" %}
        {% endfor %}
    </ul>
    <div class="pagination">
        {{ page_str }}
    </div>
</body>
</html>

user_list.html

分页3

from django.conf.urls import url
from django.contrib import admin
from django.conf.urls import include
from app01 import views
 
urlpatterns = [
    url(r‘^admin/‘, admin.site.urls),
    url(r‘^user_list/‘, views.user_list),
]

urls.py

from django.shortcuts import render
from django.shortcuts import HttpResponse
# Create your views here.
from django.urls import reverse
 
from utils import pagination
 
LIST = []
for i in range(1009):
    LIST.append(i)
 
 
def user_list(request):
    current_page = request.GET.get("p", 1)
    current_page = int(current_page)
 
    page_obj = pagination.Page(current_page, len(LIST))
    data = LIST[page_obj.start:page_obj.end]
    page_str = page_obj.page_str("/user_list/")
    return render(request, "user_list.html", {"li": data, "page_str": page_str})

views.py

在工程目录创建目录utils，然后在此目录中创建pagination.py文件

pagination.py

#!/usr/bin/env python
# _*_ coding:utf-8 _*_
# Author: JiaChen
 
from django.utils.safestring import mark_safe
 
 
# 封装分页模块
class Page(object):
 
    def __init__(self, current_page, data_count, per_page_count=10, pager_num=7):
        self.current_page = current_page
        self.data_count = data_count
        self.per_page_count = per_page_count
        self.pager_num = pager_num
 
    @property
    def start(self):
        return (self.current_page - 1) * self.per_page_count
 
    @property
    def end(self):
        return self.current_page * self.per_page_count
 
    @property
    def total_count(self):
        v, y = divmod(self.data_count, self.per_page_count)
        if y:
            v += 1
        return v
 
    def page_str(self, base_url):
        page_list = []
        if self.total_count < self.pager_num:
            start_index = 1
            end_index = self.total_count + 1
        else:
            if self.current_page <= (self.pager_num + 1) / 2:
                start_index = 1
                end_index = self.pager_num + 1
            else:
                start_index = self.current_page - (self.pager_num - 1) / 2
                end_index = self.current_page + (self.pager_num + 1) / 2
                if (self.current_page + (self.pager_num - 1) / 2) > self.total_count:
                    end_index = self.total_count + 1
                    start_index = self.total_count - self.pager_num + 1
 
        if self.current_page == 1:
            prev = ‘<a class="page" href="#">上一页</a>‘
        else:
            prev = ‘<a class="page" href="%s?p=%s">上一页</a>‘ % (base_url, self.current_page - 1)
        page_list.append(prev)
 
        for i in range(int(start_index), int(end_index)):
            if i == self.current_page:
                temp = ‘<a class="page active" href="%s?p=%s">%s</a>‘ % (base_url, i, i)
            else:
                temp = ‘<a class="page" href="%s?p=%s">%s</a>‘ % (base_url, i, i)
            page_list.append(temp)
 
        if self.current_page == self.total_count:
            nex = ‘<a class="page" href="#">下一页</a>‘
        else:
            nex = ‘<a class="page" href="%s?p=%s">下一页</a>‘ % (base_url, self.current_page + 1)
        page_list.append(nex)
 
        jump = """
        <input type=‘text‘ /><a id=‘ii1‘ onclick=‘jumpTo(this, "%s?p=");‘>GO</a>
        <script>
            function jumpTo(ths, base){
                var val = ths.previousSibling.value;
                location.href = base + val;
            }
        </script>
        """ % base_url
        page_list.append(jump)
        page_str = "".join(page_list)
        page_str = mark_safe(page_str)
        return page_str

pagination.py

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        .pagination .page{
            display: inline-block;
            padding: 5px;
            background-color: cyan;
            margin: 5px;
        }
        .pagination .page.active{
            background-color: brown;
            color: black;
        }
    </style>
</head>
<body>
    <ul>
        {% for item in li %}
            {% include "li.html" %}
        {% endfor %}
    </ul>
    <div class="pagination">
        {{ page_str }}
    </div>
</body>
</html>

user_list.html

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