计算机毕业设计 基于Python的校园个人闲置物品换购平台 闲置物品交易平台 Python+Django+Vue 前后端分离 附源码 讲解 文档

🍊作者：计算机编程-吉哥

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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》

目录

1.技术选型

2.开发工具

3.功能

3.1【角色】

3.2【用户功能模块】

3.3【管理员功能模块】

4.项目演示截图

[4.1 系统首页](#4.1 系统首页)

[4.2 闲置商品](#4.2 闲置商品)

[4.3 商品详情](#4.3 商品详情)

[4.4 二手商品管理](#4.4 二手商品管理)

[4.5 置换账户功能](#4.5 置换账户功能)

[4.6 闲置商品管理](#4.6 闲置商品管理)

[4.7 购买订单管理](#4.7 购买订单管理)

[4.8 校园资讯](#4.8 校园资讯)

5.核心代码

[5.1 Settings.py](#5.1 Settings.py)

[5.2 Urls.py](#5.2 Urls.py)

[5.3 Users_v.py](#5.3 Users_v.py)

[5.4 Auth.py](#5.4 Auth.py)

6.LW文档大纲参考

---

背景意义介绍：
在资源节约和环境保护日益受到重视的今天，校园个人闲置物品换购平台作为一种创新的交易方式，对于促进资源循环利用、减少浪费具有重要的现实意义。该平台通过提供一个在线交换和购买个人闲置物品的渠道，鼓励学生以环保的方式处理不再需要的物品，同时也满足了他人对经济实惠商品的需求。

本文介绍的校园个人闲置物品换购平台，采用Java作为后端开发语言，结合SpringBoot框架，确保了服务端应用的高效性和稳定性。前端则利用Vue.js技术，为用户提供了直观、易用的交互界面。平台服务于管理员、置换账户和普通用户三种角色，提供了全面的服务和管理功能。用户可以通过系统浏览闲置商品、参与交流论坛、查看校园资讯，并在个人中心管理发布信息和收藏。管理员则可以通过系统进行用户管理、商品类型管理、订单管理和系统设置。

后端管理模块为管理员提供了包括校园资讯管理、轮播图管理等在内的强大工具集。这些功能的实现，不仅提高了平台的运营效率，也为用户带来了便捷的交易体验。

校园个人闲置物品换购平台的实现，有助于构建一个环保、节约的校园文化，促进学生之间的交流与合作。系统的数据分析和用户反馈机制还可以帮助管理者洞察市场需求，优化服务内容，提升用户满意度。总之，该平台对于推动校园经济的可持续发展、培养年轻一代的环保意识和资源管理能力具有重要的战略意义。

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、置换账户、用户

3.2【用户功能模块】

• 登录
• 注册
• 系统首页
• 闲置商品
• 二手商品
• 交流论坛
• 校园资讯
• 个人中心（个人中心、我的发布、我的收藏）
• 置换订单管理
• 二手商品管理
• 购买订单管理
• 用户资料

3.3【管理员功能模块】

• 登录
• 置换账户管理
• 用户管理
• 商品类型管理
• 闲置商品管理
• 置换订单管理
• 二手商品管理
• 购买订单管理
• 交流论坛
• 系统管理（校园资讯、校园资讯分类、关于我们、系统简介、轮播图管理）

4.项目演示截图

4.1 系统首页

4.2 闲置商品

4.3 商品详情

4.4 二手商品管理

4.5 置换账户功能

4.6 闲置商品管理

4.7 购买订单管理

4.8 校园资讯

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 = True

ALLOWED_HOSTS = ["*"]

# Application definition

INSTALLED_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 = False

ROOT_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-validators

AUTH_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 = True

USE_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 Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/2.0/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. 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 TemplateView


from . import views
from dj2.settings import dbName as schemaName

urlpatterns = [
    path('xadmin/', admin.site.urls),
    path(r'index/',views.index),
    path('{}/'.format(schemaName),include('main.urls')),#导入schemaName
    re_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 JsonResponse

from .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,hasHadoop

def 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_code
            msg['msg'] = mes.password_error_code
            return 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_code
            msg['msg'] = error
        return 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__ = None
        if __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'] = [],1,0,0,10

        return 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__ = None

        if __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_code
                msg['msg'] = ret
        return 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_code
            msg['msg'] = error
        return 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:
            pass
        error = users.updatebyparams(users, users, req_dict)
        if error != None:
            msg['code'] = crud_error_code
            msg['msg'] = error
        return 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_code
            msg['msg'] = error
        return JsonResponse(msg)

5.4 Auth.py

# coding:utf-8
# author:ila
import base64, copy
from django.http import JsonResponse
from django.apps import apps

from util.codes import *
from util import message as mes


class 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=None
            allModels = 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_code
                msg['msg'] = '找不到该用户信息'
                result = msg
            else:
                request.session['tablename'] = tablename2
                request.session['params'] = params2
                msg['msg'] = '身份验证通过。'
                result = msg
        else:
            msg['code'] = 401
            msg['msg'] = 'headers未包含认证信息。'
            result = msg
        return 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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