Django3项目商城从0到1 【四】数据渲染与展示

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小旺v 2022-03-21 11:28:58 博主文章分类：Python ©著作权

文章标签 python html Django 项目实战 javascript 文章分类 代码人生

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文章目录

基础模板设计
首页模板设计

commodity和shopper的urls.py

views.py定义相应的视图函数
配置媒体资源的路由信息

基础模板设计

在项目babys的templates文件夹新建文件base.html

该文件用于存放每个网页顶部的HTML代码

<!DOCTYPE html>
<html lang="en">
<head>
  {% load static %}
  <title>{{title}}</title>
  <link rel="stylesheet" type="text/css" href="{% static 'css/main.css' %}">
  <link rel="stylesheet" type="text/css" href="{% static 'layui/css/layui.css' %}">
  <script type="text/javascript" src="{% static 'layui/layui.js' %}"></script>
</head>
<body>
  <div class="header">
    <div class="headerLayout w1200">
      <div class="headerCon">
        <h1 class="mallLogo">
          <a href="{% url 'index:index' %}" title="母婴商城">
            <img src="{% static 'img/logo.png' %}">
          </a>
        </h1>
        <div class="mallSearch">
          <form action="{% url 'commodity:commodity' %}" method="get" class="layui-form" novalidate>
            <input type="text" name="n" required  lay-verify="required" autocomplete="off" class="layui-input" placeholder="请输入需要的商品">
            <button class="layui-btn" lay-submit lay-filter="formDemo">
                <i class="layui-icon layui-icon-search"></i>
            </button>
          </form>
        </div>
      </div>
    </div>
  </div>

  <div class="content content-nav-base {{classContent}}">
    <div class="main-nav">
      <div class="inner-cont0">
        <div class="inner-cont1 w1200">
          <div class="inner-cont2">
            <a href="{% url 'index:index' %}" {% if classContent == ''%}class="active"{% endif %}>首页</a>
      <a href="{% url 'commodity:commodity' %}" {% if classContent == 'commoditys'%}class="active"{% endif %}>所有商品</a>
      <a href="{% url 'shopper:shopcart' %}" {% if classContent == 'shopcarts'%}class="active"{% endif %}>购物车</a>
            <a href="{% url 'shopper:shopper' %}" {% if classContent == 'informations'%}class="active"{% endif %}>个人中心</a>
          </div>
        </div>
      </div>
    </div>
  {% block content %}{% endblock content %}
  </div>

{% block footer %}{% endblock footer %}
<script type="text/javascript">{% block script %}{% endblock script %}</script>
</body>
</html>

首页模板设计

模板文件index.html的代码

{% extends 'base.html' %}
{% load static %}
{% block content %}
    <div class="category-con">
      <div class="category-banner">
        <div class="w1200">
          <img src="{% static 'img/banner1.jpg' %}">
        </div>
      </div>
    </div>
    <div class="floors">
      <div class="sk">
        <div class="sk_inner w1200">
          <div class="sk_hd">
            <a href="javascript:;">
              <img src="{% static 'img/s_img1.jpg' %}">
            </a>
          </div>
          <div class="sk_bd">
            <div class="layui-carousel" id="test1">
              <div carousel-item>
              <div class="item-box">
              {% for c in commodityInfos %}
                  {% if forloop.counter < 5 %}
                    <div class="item">
                    <a href="{% url 'commodity:detail' c.id %}">
                        <img src="{{ c.img.url }}"></a>
                    <div class="title">{{ c.name }}</div>
                    <div class="price">
                      <span>￥{{ c.discount|floatformat:'2' }}</span>
                      <del>￥{{ c.price|floatformat:'2' }}</del>
                    </div>
                    </div>
                  {% endif %}
                {% endfor %}
                </div>

              <div class="item-box">
              {% for c in commodityInfos %}
                  {% if forloop.counter > 4 %}
                    <div class="item">
                    <a href="{% url 'commodity:detail' c.id %}">
                        <img src="{{ c.img.url }}"></a>
                    <div class="title">{{ c.name }}</div>
                    <div class="price">
                      <span>￥{{ c.discount|floatformat:'2' }}</span>
                      <del>￥{{ c.price|floatformat:'2' }}</del>
                    </div>
                    </div>
                  {% endif %}
                {% endfor %}
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>

    <div class="product-cont w1200" id="product-cont">
      <div class="product-item product-item1 layui-clear">
        <div class="left-title">
          <h4><i>1F</i></h4>
          <img src="{% static 'img/icon_gou.png' %}">
          <h5>宝宝服饰</h5>
        </div>
        <div class="right-cont">
          <a href="javascript:;" class="top-img"><img src="{% static 'img/img12.jpg' %}" alt=""></a>
          <div class="img-box">
            {% for c in clothes %}
              <a href="{% url 'commodity:detail' c.id %}"><img src="{{ c.img.url }}"></a>
            {% endfor %}
          </div>
        </div>
      </div>
      <div class="product-item product-item2 layui-clear">
        <div class="left-title">
          <h4><i>2F</i></h4>
          <img src="{% static 'img/icon_gou.png' %}">
          <h5>奶粉辅食</h5>
        </div>
        <div class="right-cont">
          <a href="javascript:;" class="top-img"><img src="{% static 'img/img12.jpg' %}" alt=""></a>
          <div class="img-box">
            {% for f in food %}
            <a href="{% url 'commodity:detail' f.id %}"><img src="{{ f.img.url }}"></a>
            {% endfor %}
          </div>
        </div>
      </div>
      <div class="product-item product-item3 layui-clear">
        <div class="left-title">
          <h4><i>3F</i></h4>
          <img src="{% static 'img/icon_gou.png' %}">
          <h5>宝宝用品</h5>
        </div>
        <div class="right-cont">
          <a href="javascript:;" class="top-img"><img src="{% static 'img/img12.jpg' %}"></a>
          <div class="img-box">
            {% for g in goods %}
            <a href="{% url 'commodity:detail' g.id %}"><img src="{{ g.img.url }}"></a>
            {% endfor %}
          </div>
        </div>
      </div>
    </div>
{% endblock content %}

{% block footer %}
  <div class="footer">
    <div class="ng-promise-box">
      <div class="ng-promise w1200">
        <p class="text">
          <a class="icon1" href="javascript:;">7天无理由退换货</a>
          <a class="icon2" href="javascript:;">满99元全场免邮</a>
          <a class="icon3" style="margin-right: 0" href="javascript:;">100%品质保证</a>
        </p>
      </div>
    </div>
    <div class="mod_help w1200">
      <p>
        <a href="javascript:;">关于我们</a>
        <span>|</span>
        <a href="javascript:;">帮助中心</a>
        <span>|</span>
        <a href="javascript:;">售后服务</a>
        <span>|</span>
        <a href="javascript:;">母婴资讯</a>
        <span>|</span>
        <a href="javascript:;">关于货源</a>
      </p>
    </div>
  </div>
{% endblock footer %}

{% block script %}
layui.config({
    base: '{% static 'js/' %}'
  }).use(['mm','carousel'],function(){
      var carousel = layui.carousel,
     mm = layui.mm;
     var option = {
        elem: '#test1'
        ,width: '100%'
        ,arrow: 'always'
        ,height:'298'
        ,indicator:'none'
      }
      carousel.render(option);
});
{% endblock script %}

使用{%load static %}读取静态资源
重写base.html定义的接口content
实现“今日必抢”的商品热销功能，该功能共分为2页，每页自动进行轮播展示
{% url ‘commodity:detail’ c.id %}是使用商品的主键字段id生成对应的商品详细页的路由地址，当单击商品即可查看商品详细页。
{{ c.img.url }}代表当前遍历对象的字段img
{{ c.name }}获取当前遍历对象的字段name
{{ c.discount|floatformat:‘2’ }}获取当前遍历对象的字段discount
{{ c.price|floatformat:‘2’ }}获取当前遍历对象的字段price
实现某分类的商品热销功能，分别为“宝宝服饰”、“奶粉辅食”和“宝宝用品”
重写base.html定义的接口footer和script

commodity和shopper的urls.py

commodity-urls.py

from django.urls import path
from .views import *

urlpatterns = [
    path('.html',commodityView,name='commodity'),
    path('/detail.<int:id>.html',detailView,name='detail'),
]

shopper-urls.py

from django.urls import path
from .views import *

urlpatterns = [
    path('.html',shopperView,name='shopper'),
    path('/login.html',loginView,name='login'),
    path('/logout.html',logoutView,name='logout'),
    path('/shopcart.html',shopcartView,name='shopcart'),
]

views.py定义相应的视图函数

commodity-views.py

from django.http import HttpResponse

def commodityView(request):
    return HttpResponse('Hello World')

def detailView(request, id):
    return HttpResponse('Hello World')

shopper-views.py

from django.http import HttpResponse

def shopperView(request):
    return HttpResponse('Hello World')

def loginView(request):
    return HttpResponse('Hello World')

def logoutView(request):
    return HttpResponse('Hello World')

def shopcartView(request):
    return HttpResponse('Hello World')

配置媒体资源的路由信息

bay小的url.py

from django.contrib import admin
from django.urls import path, include, re_path
from django.views.static import serve
from django.conf import settings

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include(('index.urls','index'),namespace='index')),
    path('commodity', include(('commodity.urls','commodity'),namespace='commodity')),
    path('shopper', include(('shopper.urls','shopper'),namespace='shopper')),
    re_path('media/(?P<path>.*)', serve, {'document_root':settings.MEDIA_ROOT}, name='media'),
]