python3 django2开发个人商城网站(自定义用户表保持登录状态功能)

最近想学爬虫，但是呢，我想搭建一个网站来熟悉一下网页中的东西，我起初的想法是做一个个人博客网站，我django项目都创建了，我用了几天的时间来构思这个网站应该怎么做，正当我在构思的时候，我突然有了一个灵感，那就是我暑假放弃了的个人商城demo，于是我就用这个框架来做了我的个人商城网站。说这么多，主要是想解释我这个项目的命名为什么是my_blog了，而不是不是以shopping命名的项目了。好了，下面进入正题吧。

这里我先简单说一下这个网站能实现哪些功能，能够浏览商品，搜索商品，购买商品功能（没有付款接口，当然只是模拟付款），购物车功能，登录功能（没有用django自带的用户表，含验证登录与保持登录功能）。

我先说一下我做这个项目的版本：python3.6.3, django2.0.5用到的前端框架是bootstrap-3.3.7。这里我需要提一点，这个项目应该适合做过django项目的同学，最少也要使用django框架连接过数据库。不然做这个项目将会很吃力。

好了，我先上一下效果图吧。

商城首页：

点击导航栏中的‘男装’。

图片就贴到这里吧，不能都贴出来，不然就太垮了。我把项目的构架先贴出来

项目的第一步，一定是数据表，数据关系一定要先规划好，不然很有可能使项目做到一半需要大改，这样的话就非常伤脑筋了。这里我贴出models.py的代码。别忘了命令行python manage.py makemigrations , python mange.py migrate迁移数据库文件，与映射数据表到数据库。

from django.db import models
#用户表
class User(models.Model):username = models.CharField(max_length=30, unique=True)password = models.CharField(max_length=30)ismerchant = models.BooleanField(default=False) #是否是商人merchant_name = models.CharField(max_length=30, blank=True)merchant_iphone = models.CharField(max_length=11, blank=True)#商品表
class Commodity(models.Model):types = ((1, '请选择商品的类别'),('男装', '男装'),('美妆', '美妆'),('手机', '手机'),('食品', '食品'),('电器', '电器'),('鞋包', '鞋包'),('百货', '百货'),('女装', '女装'),('汽车', '汽车'),('水果', '水果'),('运动', '运动'),('电脑', '电脑'),('家纺', '家纺'),('内衣', '内衣'),('家装', '家装'),('母婴', '母婴'),('家居', '家居'),('文具', '文具'),('其他', '其他'),)merchant_commodity_id = models.ForeignKey(User, to_field='username', on_delete=models.DO_NOTHING)commodity_name = models.CharField(max_length=30)commodity_introdice = models.CharField(max_length=255)commodity_image = models.ImageField(upload_to = 'img')#自动存储到media中的img文件夹中commodity_price = models.CharField(max_length=20, default='0')commodity_store = models.CharField(max_length=10, default='none')commodity_sort = models.CharField(max_length=10, choices=types)date_issused = models.DateTimeField(auto_now=True)class Meta:#按上架时间倒序排序ordering = ['-date_issused']#购物车
class Shopping_Cat(models.Model):commodity_id = models.CharField(max_length=10 , blank=True)#商品idcommodity_introdice = models.CharField(max_length=255, blank=True)#商品介绍commodity_image = models.CharField(max_length=200, blank=True)buy_number = models.CharField(max_length=50, blank=True)#购买数量number_price = models.CharField(max_length=50, blank=True)#总数量commodity_price = models.CharField(max_length=50, blank=True)merchant_name = models.CharField(max_length=30, blank=True)#卖家名字merchant_iphone = models.CharField(max_length=11, blank=True)merchant_username = models.CharField(max_length=30, blank=True)cusstomer_name = models.CharField(max_length=30, blank=True)#买家名字cusstomer_iphone = models.CharField(max_length=11, blank=True)cusstomer_username = models.CharField(max_length=30, blank=True)receive_iphone = models.CharField(max_length=11, blank=True)#收件人名字receive_name = models.CharField(max_length=50, blank=True)receive_adress = models.CharField(max_length=100, blank=True)date_issused = models.DateTimeField(auto_now=True)class Meta:#按加入购物车的时间倒序排序ordering = ['-date_issused']#下单表，这里的字段属性和购物车的表一样
class Indent(models.Model):commodity_id = models.CharField(max_length=10 , blank=True)commodity_introdice = models.CharField(max_length=255, blank=True)commodity_image = models.CharField(max_length=200, blank=True)buy_number = models.CharField(max_length=50, blank=True)number_price = models.CharField(max_length=50, blank=True)commodity_price = models.CharField(max_length=50, blank=True)merchant_name = models.CharField(max_length=30, blank=True)merchant_iphone = models.CharField(max_length=11, blank=True)merchant_username = models.CharField(max_length=30, blank=True)cusstomer_name = models.CharField(max_length=30, blank=True)cusstomer_iphone = models.CharField(max_length=11, blank=True)cusstomer_username = models.CharField(max_length=30, blank=True)receive_iphone = models.CharField(max_length=11, blank=True)receive_name = models.CharField(max_length=50, blank=True)receive_adress = models.CharField(max_length=100, blank=True)date_issused = models.DateTimeField(auto_now=True)class Meta:#按购买的时间倒序排序ordering = ['-date_issused']

将数据表注册到django后台代码，可以在django后台添加数据。

from django.contrib import admin
from .models import Commodity, User, Shopping_Cat, Indentclass CommodityAdmin(admin.ModelAdmin):list_display = ['id', 'merchant_commodity_id', 'commodity_name', 'commodity_sort', 'commodity_introdice', 'commodity_image', 'commodity_price', 'commodity_store', 'date_issused']
admin.site.register(Commodity, CommodityAdmin)
class UserAdmin(admin.ModelAdmin):list_display = ['username', 'password', 'ismerchant', 'merchant_name' ,'merchant_iphone']
admin.site.register(User, UserAdmin)
class Shopping_CatAdmin(admin.ModelAdmin):list_display = ['commodity_id', 'commodity_introdice', 'buy_number', 'number_price', 'commodity_price', 'merchant_name', 'cusstomer_name', 'receive_name', 'receive_adress' ]
admin.site.register(Shopping_Cat, Shopping_CatAdmin)
class IndentAdmin(admin.ModelAdmin):list_display = ['commodity_id', 'commodity_introdice', 'buy_number', 'number_price', 'commodity_price', 'merchant_name', 'cusstomer_name', 'receive_name', 'receive_adress' ]
admin.site.register(Indent, IndentAdmin)

urls.py的配置。我由于想快速开发我的网站，我就没有将url include分开来写。

"""my_blog URL ConfigurationThe `urlpatterns` list routes URLs to views. For more information please see:https://docs.djangoproject.com/en/2.0/topics/http/urls/
Examples:
Function views1. Add an import:  from my_app import views2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views1. Add an import:  from other_app.views import Home2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf1. Import the include() function: from django.urls import include, path2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path, re_path
from django.conf.urls.static import static
from django.views.static import serve
from . import settings
from blogs import views
urlpatterns = [path('admin/', admin.site.urls),#meidia的相关配置re_path(r'media/(?P<path>.*)$', serve, {'document_root':settings.MEDIA_ROOT}),path('', views.index, name= 'home'),path('<int:id>', views.commodity_details, name='commodity_detail'),path('search/commodity', views.search_commodity, name = 'search_commodity'),path('search/<path:sort>', views.search_sort, name = 'search_sort'),path('login', views.login, name = 'login'),path('user_login', views.user_login, name = 'user_login'),path('user_register', views.user_register, name = 'user_register'),path('buy_detail_<int:id>', views.buy_detail, name = 'buy_detail'),path('buy_success_<int:id>', views.buy_success, name = 'buy_success'),path('shopping_cat_<int:id>', views.shopping_cat, name = 'shopping_cat'),path('add_shopping_cat_success_<int:id>', views.add_shopping_cat_success, name = 'add_shopping_cat_success'),path('my_shopping_cart', views.my_shopping_cart, name = 'my_shopping_cart'),path('change_indent_<int:id>', views.change_indent, name = 'change_indent'),path('change_success_<int:id>', views.change_success, name= 'change_success'),path('delete_success_<int:id>', views.delete_cat, name= 'delete_success'),]
# urlpatterns += static(settings.MEDIA_URL, document_root = settings.MEDIA_ROOT)

逻辑代码的话我加上注释就直接贴出来了。

from django.shortcuts import render,HttpResponse, redirect, HttpResponseRedirect
import random
from .models import Commodity, User, Indent, Shopping_Catdef index(request):#定义一个空字典，将要展示的商品存放到页面上context = {}sorts = Commodity.objects.all()random_names = []for sort in sorts:random_names.append(sort.commodity_name)random_name = random.sample(random_names,1)context['random_name'] = ''.join(random_name)commoditys = Commodity.objects.order_by('?')[:30]commodity_sorts = ['男装', '美妆', '手机', '食品', '电器', '鞋包', '百货', '女装', '汽车', '水果', '运动', '电脑', '家纺', '内衣', '家装', '母婴', '家居', '文具', '其他']context['commodity_sorts'] =  commodity_sortscontext['commoditys'] = commodityscontext['username'] = request.session.get('username')return render(request, 'commodity.html', context=context)#用于展示商品的详情页def commodity_details(request, id):commodity_detail = Commodity.objects.filter(id = id).first()context = {}context['commodity_detail'] =  commodity_detailcontext['hide'] = 'display: none;'#传给前端，让前端视图隐藏context['username'] = request.session.get('username')context['id'] = idreturn render(request, 'commodity_detail.html' ,context=context)#根据搜索栏中的关键词查找商品
def search_commodity(request):keys = request.GET.get('search', '')commodity_search = Commodity.objects.all()context = {}search_result = []sorts = Commodity.objects.all()random_names = []for sort in sorts:random_names.append(sort.commodity_name)random_name = random.sample(random_names,1)context['random_name'] = ''.join(random_name)context['username'] = request.session.get('username')commodity_sorts = ['男装', '美妆', '手机', '食品', '电器', '鞋包', '百货', '女装', '汽车', '水果', '运动', '电脑', '家纺', '内衣', '家装', '母婴', '家居', '文具', '其他']context['commodity_sorts'] =  commodity_sortsfor i in commodity_search:if keys in str(i.commodity_introdice):search_result.append(i)elif keys in str(i.commodity_sort):search_result.append(i)if search_result == []:context['message'] = '对不起。商城没有找到你想搜索的商品！'else:context['commoditys'] = search_resultreturn render(request, 'commodity.html',context=context)
#搜索栏下方的导航栏的方法
def search_sort(request, sort):context = {}sorts = Commodity.objects.all()random_names = []for sor in sorts:random_names.append(sor.commodity_name)#随机取一条数据放入搜索框random_name = random.sample(random_names,1)context['random_name'] = ''.join(random_name)#根据商品类别的查找commoditys = Commodity.objects.filter(commodity_sort= sort)context['commoditys'] = commoditys#获取session判断用户是登录状态context['username'] = request.session.get('username')commodity_sorts = ['男装', '美妆', '手机', '食品', '电器', '鞋包', '百货', '女装', '汽车', '水果', '运动', '电脑', '家纺', '内衣', '家装', '母婴', '家居', '文具', '其他']context['commodity_sorts'] =  commodity_sortsreturn render(request, 'commodity.html' , context=context)#进入登录页面
def login(request):return render(request, 'login.html')#登录功能
def user_login(request):if request.method == 'POST':username = request.POST.get('username', '')password = request.POST.get('password', '')#验证登录users = User.objects.filter(username=username, password=password)if username == '' or password =='':return render(request, 'login.html',{'message':'用户名和密码不能为空'})if users:# request.session['is_login'] = '1'#登录后给浏览器发送登录者的用户名（保持登录状态）request.session['username'] = users[0].username#设置保持登录时间  参数0表示Cookie将在用户的浏览器关闭时过期，None表示永不过期，整数表示在多少秒后过期request.session.set_expiry(0)return HttpResponseRedirect(request.POST.get('next', '/') or '/')return render(request, 'login.html',{'message':'用户名或密码错误'})#用户注册功能
def user_register(request):if request.method == 'POST':username = request.POST.get('register_username', '')password = request.POST.get('register_password', '')again_password = request.POST.get('again_password', '')merchant_iphone = request.POST.get('merchant_iphone', '')merchant_name = request.POST.get('merchant_name', '')username_exist = User.objects.filter(username = username)if username_exist:return render(request, 'register.html', {'message': '用户名已存在'})elif password != again_password:return render(request, 'register.html', {'message': '两次密码输入不一致'})else:User.objects.create(username = username, password = password, merchant_name = merchant_name, merchant_iphone =merchant_iphone).save()return render(request, 'login.html')return render(request, 'register.html')#购买详情页
def buy_detail(request, id):commodity = Commodity.objects.filter(id = id).first()context={}context['commodity_name'] = commodity.commodity_namecontext['commodity_image'] = commodity.commodity_imagecontext['commodity_store'] = commodity.commodity_storecontext['commodity_price'] = commodity.commodity_pricecontext['id'] = idusername = request.session.get('username')if username:users = User.objects.filter(username=username).first()context['merchant_name'] = users.merchant_namecontext['merchant_iphone'] = users.merchant_iphonecontext['hide'] = 'display: none;'context['username'] = usernamereturn render(request, 'buy_detail.html',context = context)else:return render(request, 'login.html')#立即下单购买成功
def buy_success(requset ,id):if requset.method == 'POST':users = Commodity.objects.filter(id = id).first()cusstomer = User.objects.filter(username=requset.session.get('username')).first()context={}context['id'] = idcontext['commodity_introdice'] = users.commodity_introdicecontext['commodity_image'] = users.commodity_imagecontext['commodity_price'] = users.commodity_priceprint(type(context['commodity_price']))context['buy_number'] = requset.POST.get('buy_number', '')context['number_price'] = requset.POST.get('number_price', '')context['province'] = requset.POST.get('province', '')context['town'] = requset.POST.get('town', '')context['area'] = requset.POST.get('area', '')context['merchant_username'] = users.merchant_commodity_id.usernamecontext['merchant_iphone'] = users.merchant_commodity_id.merchant_iphonecontext['merchant_name'] = users.merchant_commodity_id.merchant_namecontext['cusstomer_name'] = cusstomer.merchant_namecontext['cusstomer_iphone'] = cusstomer.merchant_iphonecontext['cusstomer_username'] = cusstomer.usernamecontext['address_detail'] = requset.POST.get('address_detail', '')context['address'] = context['province'] + '省 ' + context['town'] + ' ' +context['area'] + ' ' + context['address_detail']context['address_name'] = requset.POST.get('address_name', '')context['address_iphone']  = requset.POST.get('address_iphone', '')Indent.objects.create(commodity_id=id,commodity_introdice=context['commodity_introdice'],commodity_image=context['commodity_image'] ,buy_number = context['buy_number'], number_price=context['number_price'],commodity_price=context['commodity_price'],merchant_name=context['merchant_name'],merchant_iphone=context['merchant_iphone'],merchant_username=context['merchant_username'],cusstomer_name=context['cusstomer_name'], cusstomer_iphone =context['cusstomer_iphone'],cusstomer_username=context['cusstomer_username'],receive_iphone= context['address_iphone'],receive_name=context['address_name'],receive_adress=context['address']).save()return render(requset, 'buy_success.html', context= context)return render(requset, 'buy_detail.html.html')#加入购物车
def shopping_cat(request, id):commodity = Commodity.objects.filter(id = id).first()context={}context['commodity_name'] = commodity.commodity_namecontext['commodity_image'] = commodity.commodity_imagecontext['commodity_store'] = commodity.commodity_storecontext['commodity_price'] = commodity.commodity_pricecontext['id'] = idusername = request.session.get('username')if username:users = User.objects.filter(username=username).first()context['merchant_name'] = users.merchant_namecontext['merchant_iphone'] = users.merchant_iphonecontext['hide'] = 'display: none;'context['username'] = usernamereturn render(request, 'shopping_cat.html',context = context)else:return render(request, 'login.html')#加入购物车成功
def add_shopping_cat_success(requset ,id):if requset.method == 'POST':users = Commodity.objects.filter(id = id).first()cusstomer = User.objects.filter(username=requset.session.get('username')).first()context={}context['id'] = idcontext['commodity_introdice'] = users.commodity_introdicecontext['commodity_image'] = users.commodity_imagecontext['commodity_price'] = users.commodity_pricecontext['buy_number'] = requset.POST.get('buy_number', '')context['number_price'] = requset.POST.get('number_price', '')context['province'] = requset.POST.get('province', '')context['town'] = requset.POST.get('town', '')context['area'] = requset.POST.get('area', '')context['merchant_username'] = users.merchant_commodity_id.usernamecontext['merchant_iphone'] = users.merchant_commodity_id.merchant_iphonecontext['merchant_name'] = users.merchant_commodity_id.merchant_namecontext['cusstomer_name'] = cusstomer.merchant_namecontext['cusstomer_iphone'] = cusstomer.merchant_iphonecontext['cusstomer_username'] = cusstomer.usernamecontext['address_detail'] = requset.POST.get('address_detail', '')context['address'] = context['province'] + '省 ' + context['town'] + ' ' +context['area'] + ' ' + context['address_detail']context['address_name'] = requset.POST.get('address_name', '')context['address_iphone']  = requset.POST.get('address_iphone', '')Shopping_Cat.objects.create(commodity_id=id,commodity_introdice=context['commodity_introdice'],commodity_image=context['commodity_image'] ,buy_number = context['buy_number'], number_price=context['number_price'],commodity_price=context['commodity_price'],merchant_name=context['merchant_name'],merchant_iphone=context['merchant_iphone'],merchant_username=context['merchant_username'],cusstomer_name=context['cusstomer_name'], cusstomer_iphone =context['cusstomer_iphone'],cusstomer_username=context['cusstomer_username'],receive_iphone= context['address_iphone'],receive_name=context['address_name'],receive_adress=context['address']).save()return render(requset, 'add_shopping_cat_success.html', context= context)return render(requset, 'buy_detail.html.html')def my_shopping_cart(request):username = request.session.get('username')if username :shopping_cart = Shopping_Cat.objects.filter(cusstomer_username = username)context = {}context['username'] = usernamecontext['shopping_cart'] = shopping_cartcontext['hide'] = 'display: none;'return render(request, 'my_shopping_cart.html',context=context)return render(request,'login.html')def change_indent(request, id):change_cat = Shopping_Cat.objects.filter(id = id).first()context = {}context['change_cat'] = change_catcontext['province'] = change_cat.receive_adress.split(' ')[0]context['town'] = change_cat.receive_adress.split(' ')[1]context['area'] = change_cat.receive_adress.split(' ')[2]commodity = Commodity.objects.filter(id = change_cat.commodity_id).first()context['commodity'] = commodity.commodity_storereturn render(request, 'change_indent.html', context=context)
def change_success(request, id):context = {}if request.method == 'POST':context['buy_number'] = request.POST.get('buy_number', '')shopping_cats = Shopping_Cat.objects.get(id = id)context['province'] = request.POST.get('province', '')context['town'] = request.POST.get('town', '')context['area'] = request.POST.get('area', '')context['address_detail'] = request.POST.get('address_detail', '')context['address_name'] = request.POST.get('address_name', '')context['number_price'] = request.POST.get('number_price', '')context['address_iphone']  = request.POST.get('address_iphone', '')context['username'] = request.session.get('username')shopping_cart = Shopping_Cat.objects.filter(cusstomer_username = context['username'])context['shopping_cart'] = shopping_cartcontext['hide'] = 'display: none;'context['address'] = context['province'] + '省 ' + context['town'] + ' ' +context['area'] + ' ' + context['address_detail']shopping_cats.buy_number = context['buy_number']shopping_cats.receive_adress = context['address']shopping_cats.receive_name = context['address_name']shopping_cats.number_price = context['number_price']shopping_cats.receive_iphone = context['address_iphone']shopping_cats.save()return render(request, 'my_shopping_cart.html', context = context)return render(request, 'commodity.html')
def delete_cat(request ,id):context = {}context['username'] = request.session.get('username')shopping_cats = Shopping_Cat.objects.get(id = id)shopping_cats.delete()shopping_cart = Shopping_Cat.objects.filter(cusstomer_username = context['username'])context['shopping_cart'] = shopping_cartcontext['hide'] = 'display: none;'return render(request, 'my_shopping_cart.html', context =context)

这里就不贴前端代码了，我等下将我的那个项目的链接直接附在下面，等会你们可以直接前往下载。

个人商城项目(django2)_django商城,django项目源码-Python代码类资源-CSDN下载

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