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Java毕业设计项目~热门选题推荐《1000套》Python毕业设计精品项目《1000套》
微信小程序毕业设计精品项目《1000套》
大数据/机器学习毕业设计精品项目《1000套》
目录
1.技术选型
2.开发工具
3.功能
3.1【角色】
3.2【功能模块】
4.项目演示截图
4.1 登录
4.2 注册
4.3 用户管理
4.4 食品管理
4.5 系统简介
4.6 我的信息
4.7 可视化大屏
5.核心代码
5.1 Settings.py
5.2 Urls.py
5.3 Users_v.py
5.4 Auth.py
6.LW文档大纲参考
背景意义介绍：
随着经济的发展和人民生活水平的提高，食品行业呈现出快速增长的态势。在这个过程中，如何通过数据分析来优化食品销售策略、提高经营效益，成为了业界关注的焦点。基于Python的食品销售数据分析系统应运而生，具有重要的背景意义。
项目背景在于，食品销售市场数据庞大且复杂，传统的人工分析方式难以满足现代企业对数据处理的实时性、准确性和深度的需求。企业需要一套高效、智能的数据分析工具来辅助决策，从而在激烈的市场竞争中脱颖而出。
项目意义主要体现在以下几个方面：
1. 提高数据处理效率：基于Python的食品销售数据分析系统，能够快速处理海量销售数据，为企业提供实时、准确的市场信息，助力企业制定有效的销售策略。
2. 优化产品结构：通过对销售数据的深入挖掘，系统可以帮助企业了解市场需求，调整产品结构，提高产品竞争力。
3. 降低库存成本：系统可以根据销售数据分析，为企业提供合理的库存建议，降低库存成本，提高资金利用率。
4. 提升客户满意度：通过分析消费者购买行为，企业可以更好地了解客户需求，优化产品和服务，提升客户满意度。
5. 辅助决策：系统提供的可视化大屏展示，使企业管理者能够直观地了解企业运营状况，为决策提供有力支持。
6. 促进产业升级：食品销售数据分析系统的应用，有助于推动食品行业向数据驱动、智能化方向发展，实现产业升级。
总之，基于Python的食品销售数据分析系统为企业提供了一个高效、便捷的数据分析工具，有助于企业优化资源配置、提高市场竞争力，具有广泛的应用前景和实际价值。
1.技术选型
Python、Django、vue、elementui、html、css、js、mysql、jdk1.8
2.开发工具
pycharm、navicat
3.功能
3.1【角色】
管理员、用户
3.2【功能模块】
- 登录
- 注册
- 用户管理
- 食品管理（爬虫）
- 系统管理
- 我的信息
- 可视化大屏
4.项目演示截图
4.1 登录
4.2 注册
4.3 用户管理
4.4 食品管理
4.5 系统简介
4.6 我的信息
4.7 可视化大屏
5.核心代码
5.1 Settings.py
"""
Django settings for dj2 project.Generated by 'django-admin startproject' using Django 2.0.For more information on this file, see
https://docs.djangoproject.com/en/2.0/topics/settings/For the full list of settings and their values, see
https://docs.djangoproject.com/en/2.0/ref/settings/
"""import os
from concurrent.futures.thread import ThreadPoolExecutor
executor = ThreadPoolExecutor(20)
from util.configread import config_read# Build paths inside the project like this: os.path.join(BASE_DIR, ...)
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/2.0/howto/deployment/checklist/# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'w5yn#0gn2tt7pvu%hvwt0!lt=!$6+eqp4%m8)u3u#gknm@jm)k'# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = TrueALLOWED_HOSTS = ["*"]# Application definitionINSTALLED_APPS = ['django.contrib.admin','django.contrib.auth','django.contrib.contenttypes','django.contrib.sessions','django.contrib.messages','django.contrib.staticfiles',"main",'corsheaders',
]MIDDLEWARE = ['django.middleware.security.SecurityMiddleware','django.contrib.sessions.middleware.SessionMiddleware','django.middleware.common.CommonMiddleware',# 'django.middleware.csrf.CsrfViewMiddleware','django.contrib.auth.middleware.AuthenticationMiddleware','django.contrib.messages.middleware.MessageMiddleware','django.middleware.clickjacking.XFrameOptionsMiddleware','threadlocals.middleware.ThreadLocalMiddleware',"xmiddleware.xparam.Xparam","xmiddleware.xauth.Xauth",'corsheaders.middleware.CorsMiddleware','django.middleware.common.CommonMiddleware',]
CORS_ALLOW_CREDENTIALS = True
CORS_ORIGIN_ALLOW_ALL = True
CORS_ALLOW_HEADERS = ('*')SESSION_ENGINE = "django.contrib.sessions.backends.cache"
SESSION_COOKIE_NAME = "sessionid"
SESSION_COOKIE_PATH = "/"
SESSION_COOKIE_DOMAIN = None
SESSION_COOKIE_SECURE = False
SESSION_COOKIE_HTTPONLY = True
SESSION_COOKIE_AGE = 1209600
SESSION_EXPIRE_AT_BROWSER_CLOSE = False
SESSION_SAVE_EVERY_REQUEST = FalseROOT_URLCONF = 'dj2.urls'
TEMPLATES_DIR = os.path.join(BASE_DIR, "templates")
TEMPLATES = [{'BACKEND': 'django.template.backends.django.DjangoTemplates','DIRS': [TEMPLATES_DIR],'APP_DIRS': True,'OPTIONS': {'context_processors': ['django.template.context_processors.debug','django.template.context_processors.request','django.contrib.auth.context_processors.auth','django.contrib.messages.context_processors.messages',],},},
]WSGI_APPLICATION = 'dj2.wsgi.application'EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_USE_TLS = False
EMAIL_USE_SSL = True
EMAIL_HOST = 'smtp.qq.com'
EMAIL_PORT = 465
EMAIL_HOST_USER = 'yclw9@qq.com'
EMAIL_HOST_PASSWORD = 'mhbrkuayvkkgbijd'# Database
# https://docs.djangoproject.com/en/2.0/ref/settings/#databases# DATABASES = {
# 'default': {
# 'ENGINE': 'django.db.backends.sqlite3',
# 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
# }
# }dbtype, host, port, user, passwd, dbName, charset,hasHadoop = config_read("config.ini")
dbName=dbName.replace(" ","").strip()
print(dbtype, host, port, user, passwd, dbName, charset)if dbtype == 'mysql':DATABASES = {'default': {# 'ENGINE': 'django.db.backends.sqlite3',# 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),'ENGINE': 'django.db.backends.mysql','OPTIONS': {'sql_mode': 'traditional','init_command': "SET sql_mode='traditional'", # STRICT_TRANS_TABLES},'NAME': dbName,'USER': user,'PASSWORD': passwd,'HOST': host,'PORT': port,'charset': charset,'TEST': {'CHARSET': charset,'COLLATION': 'utf8_general_ci',},'CONN_MAX_AGE':60},}
else:print("请使用mysql5.5数据库")os._exit(1)# Password validation
# https://docs.djangoproject.com/en/2.0/ref/settings/#auth-password-validatorsAUTH_PASSWORD_VALIDATORS = [{'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',},{'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',},{'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',},{'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',},
]# Internationalization
# https://docs.djangoproject.com/en/2.0/topics/i18n/LANGUAGE_CODE = 'zh-Hans'# TIME_ZONE = 'UTC'
TIME_ZONE = 'Asia/Shanghai'USE_I18N = TrueUSE_L10N = True# USE_TZ = True
USE_TZ = False# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/2.0/howto/static-files/STATIC_URL = '/assets/'
STATICFILES_DIRS =[
os.path.join(BASE_DIR, "templates/front/assets"),
]# media
MEDIA_URL = "/media/" # 自定义
MEDIA_ROOT = os.path.join(BASE_DIR, 'media') # 自定义
if os.path.isdir(MEDIA_ROOT) == False:os.mkdir(MEDIA_ROOT)ALIPAY_APP_ID = '9021000132629452'
APP_PRIVATE_KEY_STRING = open('{}/util/alipay_key/app_private_2048.txt'.format(BASE_DIR)).read()
ALIPAY_PUBLIC_KEY_STRING = open('{}/util/alipay_key/alipay_public_2048.txt'.format(BASE_DIR)).read()
ALIPAY_SIGN_TYPE = 'RSA2'
5.2 Urls.py
"""dj2 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'))
"""
import os
from django.contrib import admin
from django.urls import path,include,re_path
from django.conf.urls import url
from django.views.static import serve
from django.views.generic import TemplateViewfrom . import views
from dj2.settings import dbName as schemaNameurlpatterns = [path('xadmin/', admin.site.urls),path(r'index/',views.index),path('{}/'.format(schemaName),include('main.urls')),#导入schemaNamere_path(r'admin/lib/(?P<p1>.*)/(?P<p2>.*)$', views.admin_lib2),re_path(r'admin/lib/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$', views.admin_lib3),re_path(r'admin/lib/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$', views.admin_lib4),re_path(r'admin/page/(?P<p1>.*)$', views.admin_page),re_path(r'admin/page/(?P<p1>.*)/(?P<p2>.*)$', views.admin_page2),re_path(r'admin/pages/(?P<p1>.*)$', views.admin_pages),re_path(r'admin/pages/(?P<p1>.*)/(?P<p2>.*)$', views.admin_pages2),re_path(r'front/(?P<p1>.*)$', views.schema_front1),re_path(r'front/(?P<p1>.*)/(?P<p2>.*)$', views.schema_front2),re_path(r'front/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$', views.schema_front3),re_path(r'front/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$', views.schema_front4),re_path(r'{}/front/(?P<p1>.*)$'.format(schemaName), views.schema_front1),re_path(r'{}/front/(?P<p1>.*)/(?P<p2>.*)$'.format(schemaName), views.schema_front2),re_path(r'{}/front/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$'.format(schemaName), views.schema_front3),re_path(r'{}/front/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$'.format(schemaName), views.schema_front4),# re_path(r'assets/(?P<p1>.*)$', views.assets1),# re_path(r'assets/(?P<p1>.*)/(?P<p2>.*)$', views.assets2),# re_path(r'assets/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$', views.assets3),# re_path(r'assets/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$', views.assets4),#re_path(r'admin/(?P<p1>.*)$', views.admin_file1),re_path(r'admin/(?P<p1>.*)/(?P<p2>.*)$', views.admin_file2),re_path(r'admin/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$', views.admin_file3),re_path(r'admin/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$', views.admin_file4),re_path(r'layui/(?P<p1>.*)$', views.layui1),re_path(r'layui/(?P<p1>.*)/(?P<p2>.*)$', views.layui2),re_path(r'layui/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)$', views.layui3),re_path(r'layui/(?P<p1>.*)/(?P<p2>.*)/(?P<p3>.*)/(?P<p4>.*)$', views.layui4),re_path(r'pages/(?P<p1>.*)$', views.front_pages),re_path(r'pages/(?P<p1>.*)/(?P<p2>.*)$', views.front_pages2),# re_path(r'pages/(?P<p1>.*)$', views.front_file1),# re_path(r'(?P<p1>css|jss|img|image|iamges|font|fonts)/(?P<p2>.*)$', views.front_file2),re_path(r'modules/(?P<p1>.*)$', views.front_modules),re_path(r'css/(?P<p1>.*)$', views.css1),re_path(r'js/(?P<p1>.*)$', views.js1),re_path(r'img/(?P<p1>.*)$', views.img1),path(r'test/<str:p1>/',views.test),path(r'null',views.null),
]#判断admin使用vue还是jquery
if os.path.isdir(os.path.join(os.getcwd(),"templates/front/admin/dist/")):urlpatterns.extend([path(r'{}/admin/dist/index.html'.format(schemaName),TemplateView.as_view(template_name='front/admin/dist/index.html')),path(r'{}/admin/'.format(schemaName), TemplateView.as_view(template_name='front/admin/dist/index.html')),# 以下是后台admin的url匹配规则path(r'admin/dist/index.html'.format(schemaName),TemplateView.as_view(template_name='front/admin/dist/index.html')),path(r'admin/', TemplateView.as_view(template_name='front/admin/dist/index.html')),])
else:urlpatterns.extend([path(r'{}/admin/index.html'.format(schemaName),TemplateView.as_view(template_name='front/admin/index.html')),path(r'{}/admin/'.format(schemaName), TemplateView.as_view(template_name='front/admin/index.html')),# 以下是后台admin的url匹配规则path(r'admin/index.html'.format(schemaName),TemplateView.as_view(template_name='front/admin/index.html')),path(r'admin/', TemplateView.as_view(template_name='front/admin/index.html')),])if os.path.isfile(os.path.join(os.getcwd(),"templates/front/index.html")):urlpatterns.extend([path(r'index.html', TemplateView.as_view(template_name='front/index.html')),path(r'{}/index.html'.format(schemaName), TemplateView.as_view(template_name='front/index.html')),path(r'{}/front/index.html'.format(schemaName), TemplateView.as_view(template_name='front/index.html')),path(r'', TemplateView.as_view(template_name='front/index.html')),])
5.3 Users_v.py
# coding:utf-8
__author__ = "ila"from django.http import JsonResponsefrom .users_model import users
from util.codes import *
from util.auth import Auth
import util.message as mes
from dj2.settings import host,port,user,passwd,dbName,hasHadoopdef users_login(request):if request.method in ["POST", "GET"]:msg = {'code': normal_code, "msg": mes.normal_code}req_dict = request.session.get("req_dict")if req_dict.get('role')!=None:del req_dict['role']datas = users.getbyparams(users, users, req_dict)if not datas:msg['code'] = password_error_codemsg['msg'] = mes.password_error_codereturn JsonResponse(msg)req_dict['id'] = datas[0].get('id')return Auth.authenticate(Auth, users, req_dict)def users_register(request):if request.method in ["POST", "GET"]:msg = {'code': normal_code, "msg": mes.normal_code}req_dict = request.session.get("req_dict")error = users.createbyreq(users, users, req_dict)if error != None:msg['code'] = crud_error_codemsg['msg'] = errorreturn JsonResponse(msg)def users_session(request):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code,"msg":mes.normal_code, "data": {}}req_dict = {"id": request.session.get('params').get("id")}msg['data'] = users.getbyparams(users, users, req_dict)[0]return JsonResponse(msg)def users_logout(request):if request.method in ["POST", "GET"]:msg = {"msg": "退出成功","code": 0}return JsonResponse(msg)def users_page(request):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code, "msg": mes.normal_code,"data": {"currPage": 1, "totalPage": 1, "total": 1, "pageSize": 10, "list": []}}req_dict = request.session.get("req_dict")tablename = request.session.get("tablename")try:__hasMessage__ = users.__hasMessage__except:__hasMessage__ = Noneif __hasMessage__ and __hasMessage__ != "否":if tablename != "users":req_dict["userid"] = request.session.get("params").get("id")if tablename == "users":msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \msg['data']['pageSize'] = users.page(users, users, req_dict)else:msg['data']['list'], msg['data']['currPage'], msg['data']['totalPage'], msg['data']['total'], \msg['data']['pageSize'] = [],1,0,0,10return JsonResponse(msg)def users_info(request, id_):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}data = users.getbyid(users, users, int(id_))if len(data) > 0:msg['data'] = data[0]# 浏览点击次数try:__browseClick__ = users.__browseClick__except:__browseClick__ = Noneif __browseClick__ and "clicknum" in users.getallcolumn(users, users):click_dict = {"id": int(id_), "clicknum": str(int(data[0].get("clicknum", 0)) + 1)}ret = users.updatebyparams(users, users, click_dict)if ret != None:msg['code'] = crud_error_codemsg['msg'] = retreturn JsonResponse(msg)def users_save(request):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}req_dict = request.session.get("req_dict")req_dict['role'] = '管理员'error = users.createbyreq(users, users, req_dict)if error != None:msg['code'] = crud_error_codemsg['msg'] = errorreturn JsonResponse(msg)def users_update(request):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}req_dict = request.session.get("req_dict")if req_dict.get("mima") and req_dict.get("password"):if "mima" not in users.getallcolumn(users,users):del req_dict["mima"]if "password" not in users.getallcolumn(users,users):del req_dict["password"]try:del req_dict["clicknum"]except:passerror = users.updatebyparams(users, users, req_dict)if error != None:msg['code'] = crud_error_codemsg['msg'] = errorreturn JsonResponse(msg)def users_delete(request):''''''if request.method in ["POST", "GET"]:msg = {"code": normal_code, "msg": mes.normal_code, "data": {}}req_dict = request.session.get("req_dict")error = users.deletes(users,users,req_dict.get("ids"))if error != None:msg['code'] = crud_error_codemsg['msg'] = errorreturn JsonResponse(msg)
5.4 Auth.py
# coding:utf-8
# author:ila
import base64, copy
from django.http import JsonResponse
from django.apps import appsfrom util.codes import *
from util import message as mesclass Auth(object):def authenticate(self, model, req_dict):"""用户登录，登录成功返回token；登录失败返回失败原因:param username:账号:param password:密码:return: json"""msg = {'code': normal_code, 'msg': mes.normal_code, 'data': {}}tablename = model.__tablename__encode_dict = {"tablename": tablename, "params": req_dict}encode_str = base64.b64encode(str(encode_dict).encode("utf-8"))msg['data']["id"] = req_dict.get("id")msg["id"] = req_dict.get("id")msg['token'] = encode_str.decode('utf-8')return JsonResponse(msg)def identify(self, request):"""用户鉴权:param request:本次请求对象:return: list"""msg = {'code': normal_code, 'msg': mes.normal_code, 'data': {}}# django的header被处理过了token = request.META.get('HTTP_TOKEN')if token and token !="null":auth_token = copy.deepcopy(token)decode_str = base64.b64decode(auth_token).decode("utf8")decode_str=decode_str.replace('"null"','""').replace('null','""')decode_dict = eval(decode_str)tablename2 = decode_dict.get("tablename")params2 = decode_dict.get("params",{})datas=NoneallModels = apps.get_app_config('main').get_models()for model in allModels:if model.__tablename__ == tablename2:datas = model.getbyparams(model, model, params2)if not datas:msg['code'] = username_error_codemsg['msg'] = '找不到该用户信息'result = msgelse:request.session['tablename'] = tablename2request.session['params'] = params2msg['msg'] = '身份验证通过。'result = msgelse:msg['code'] = 401msg['msg'] = 'headers未包含认证信息。'result = msgreturn result
6.LW文档大纲参考
具体LW如何写法，可以咨询博主，耐心分享！
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