计算机毕业设计基于Django的学生选课系统的设计与实现 Python+Django+Vue 前后端分离附源码讲解文档

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1.技术选型

2.开发工具

3.功能

3.1【角色】

3.2【前台功能模块】

3.3【后台功能模块】

4.项目演示截图

4.1 前台页面

4.2 后台页面

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：

基于Django的学生选课系统是一款针对现代教育机构设计的信息管理系统，旨在简化学生选课流程，提高教务管理效率。随着教育信息化的不断推进，传统的选课方式已经无法满足学生和教师的需求，因此，开发一个高效、便捷的在线选课系统变得尤为重要。

该系统通过Django框架构建，利用其强大的数据库管理和后台管理功能，为用户提供了一个稳定、安全的在线选课平台。系统服务于管理员、教师和学生三种角色，提供了全面的服务和管理功能。学生可以通过系统浏览课程信息、选择课程、查看成绩通知，以及在个人中心管理个人信息和收藏。教师可以通过系统管理课程信息、发布成绩通知，而管理员则可以通过系统进行学生、教师和课程信息的管理。

系统的开发对于推动教育信息化具有重要意义。它不仅能够提高选课的效率和透明度，还能够帮助教育机构更好地了解学生的学习需求和课程设置的合理性。此外，系统的数据分析功能还可以帮助教育机构优化课程安排，提高教学质量。

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、教师、用户

3.2【前台功能模块】

登录
注册
系统首页
课程信息
教室信息
公告
个人中心（个人中心、修改密码、选择课程、成绩通知、我的收藏）

3.3【后台功能模块】

登录
首页
学生
教师
课程信息
课程分类
选择课程
班级
成绩通知
教室信息
系统管理
个人资料

4.项目演示截图

4.1 前台页面

4.2 后台页面

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