Django项目实战：在线作业管理系统（1）

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原创最新推荐文章于 2026-05-01 01:59:54 发布 2.2w 阅读 AI 写同款· GEO 优化 ›

django基于Django的在线作业系统(程序+开题) 目的：本研究的目的是设计和开发一个基于Django的在线作业系统，实现学生、教师、科目、课程作业、作业提交、学生留言、作业批改、课程信息、班级、作业类型等功能。[9] 张华, 翟新军, 胥勇, 李伟强, 杨健, 赵嘉伟, 张涛. Python在集控大数据应用的研究[J]. 价值工程, 2023, 42 (21): 84-86.[4] 唐文军, 隆承志. 基于Python的聚焦网络爬虫的设计与实现[J]. 计算机与数字工程, 2023, 51 (04): 845-849.最终成品以下面运行环境。阅读详情

项目环境：Python 3.6 + Django 2.0 + MySQL（Navicat for MySQL）

总体需求：

	教师端	学生端
个人信息	注册、登陆、查看、编辑个人信息；修改密码	注册、登陆、查看、编辑个人信息；修改密码
课程信息	创建、删除课程；创建、修改、删除作业；查看学生提交的作业；	加入、退出课程；查看课程作业；提交、修改、删除作业；

教师端

学生端

个人信息

课程信息

创建、删除课程；

创建、修改、删除作业；

查看学生提交的作业；

加入、退出课程；

查看课程作业；

提交、修改、删除作业；

设计思路

首先实现系统的登陆、注册功能，以及个人信息修改、退出功能。

然后再实现系统的课程信息相关功能。

效果图：本项目使用的模板为 bootstrap后台模版hAdmin

项目配置

通过命令行方式创建项目 homework，并创建一个名为 project 的 APP，并把它加到 settings.py 里 INSATLLED_APP 中，如果要使用 MySQL数据库，则需要进行如下配置。

django-admin startproject homework
cd homework
python manage.py startapp project

# homework/settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    'project',
]

# 数据库配置

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'HOST':'localhost',
        'USER':'root',
        'PASSWORD':'123456',
        'PORT':'3306',
        'NAME':'project',
    }
}

因为要用到静态文件，需要在 settings.py 里设置 STATIC_URL 和 MEDIA（注意路径要写正确）。用户上传的文件会放在/media/文件夹里。

# homework/settings.py

# 将系统时间配置为本地时间，系统语言为中文

LANGUAGE_CODE = 'zh-hans'

TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True

STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'collectstatic')

# Be careful
STATICFILES_DIRS = [os.path.join(BASE_DIR,'static'),]

# specify media root for user uploaded files,

MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR,'media')

项目的 urls.py 如下所示。将 project 的 urls.py 也添加进去。别忘了在结尾部分加static配置。

# homework/urls.py

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

urlpatterns = [
    path('', include('project.urls')),
    path('admin/', admin.site.urls),
] + static(settings.MEDIA_URL,document_root=settings.MEDIA_ROOT)

模型 models.py

本项目对 Django Auth 自带的User模型进行了扩展，并允许用户添加更多的个人信息。由于引用了Django Auth自带的User模型，所以要 import 进来。其中外键属性中 related_name 的作用为简化反向查询。

# project/models.py

from django.db import models
from django.contrib.auth.models import User


class Role(models.Model):
    ROLE_CHOICES = (
        (0,'学生'),
        (1,'教师')
    )
    user = models.OneToOneField(User,related_name='role',on_delete=models.CASCADE)
    role = models.SmallIntegerField(choices=ROLE_CHOICES,default=0,verbose_name='角色')

    def __str__(self):
    	return str(self.role)

'''
    定义一个抽象类，字段为各个表的公共字段，这个类并不会在数据库中建表
'''
class UserAbstractModel(models.Model):
    GENDER_CHOICES = (
        (0,'男'),
        (1,'女')
    )
    name = models.CharField('姓名',default='', max_length=50)
    gender = models.SmallIntegerField(choices=GENDER_CHOICES,default=0,verbose_name='性别')
    created = models.DateTimeField('创建时间', auto_now_add=True)
    modified = models.DateTimeField('最后更改时间', auto_now=True)
    description = models.TextField('个人描述',null=True)
    # photo = models.ImageField('用户头像',upload_to=user_directory_path,blank=True)

    class Meta:
        abstract = True

class Teacher(UserAbstractModel):
    user = models.OneToOneField(Role,related_name='teacher',on_delete=models.CASCADE)
    ranks = models.CharField(default='无', max_length=50,verbose_name='职称')

    def __str__(self):
        return self.name

    class Meta:
        verbose_name='教师表'
        verbose_name_plural = verbose_name

class Student(UserAbstractModel):
    user = models.OneToOneField(Role,related_name='student',on_delete=models.CASCADE)
    classes = models.CharField('班级',default='', max_length=50)

    def __str__(self):
        return self.user.user.username

    def get_course_count(self):
    	return Course.objects.filter(student__id=self.id).count()

    class Meta:
        verbose_name='学生表'
        verbose_name_plural = verbose_name

执行以下命令，即可在数据库中看到相关的表。

python manage.py makemigrations
python manage.py migrate

路由 urls.py

# project/urls.py

from django.urls import re_path,path
from . import views

app_name = 'project'
urlpatterns = [

    # 登陆、注册 以及 信息、密码修改
    path('',views.index,name='index'),
    re_path(r'^register/$',views.register,name='register'),
    re_path(r'^login/$', views.login, name='login'),
    re_path(r'^user/(?P<pk>\d+)/profile/$', views.profile, name='profile'),
    re_path(r'^user/(?P<pk>\d+)/profile/update/$', views.profile_update, name='profile_update'),
    re_path(r'^user/(?P<pk>\d+)/pwdchange/$', views.pwd_change, name='pwd_change'),
    re_path(r'^logout/$', views.logout, name='logout'),

]

表单 forms.py

forms.py 可通过clean 方法自定义表单验证，而不用在 views.py 里再进行表单验证。

from django import forms 
from django.contrib.auth.models import User 
from django.forms import ModelForm
from .models import Teacher,Student,Course,Homework,Handin,Comment,Group
from ckeditor_uploader.widgets import CKEditorUploadingWidget

class RegistrationForm(forms.Form):
    username = forms.CharField(label=' 用户名',max_length=50)
    password1 = forms.CharField(label=' 密 码 ',widget=forms.PasswordInput)
    password2 = forms.CharField(label='确认密码', widget=forms.PasswordInput)
    role = forms.ChoiceField(label='角色',choices=((0,'学生'),(1,'教师')))

    def clean_username(self):
        username = self.cleaned_data.get('username')

        if len(username) < 6:
            raise forms.validationError("用户名必须至少为6个字符！")
        elif len(username) > 50:
            raise forms.ValidationError("用户名太长！")
        else:
            filter_result = User.objects.filter(username__exact=username)
            if len(filter_result) > 0:
                raise forms.ValidationError("用户名已存在！")
        return username

    def clean_password1(self):
        password1 = self.cleaned_data.get('password1')

        if len(password1) < 6:
            raise forms.ValidationError("密码太短！")
        elif len(password1) > 20:
            raise forms.ValidationError("密码太长！")
        return password1

    def clean_password2(self):
        password1 = self.cleaned_data.get('password1')
        password2 = self.cleaned_data.get('password2')

        if password1 and password2 and password1 != password2:
            raise forms.ValidationError("密码不匹配，请重新输入！")

        return password2

class LoginForm(forms.Form):
    username = forms.CharField(label='用户名', max_length=50)
    password = forms.CharField(label='密码', widget=forms.PasswordInput)

    def clean_username(self):
        username = self.cleaned_data.get('username')
        filter_result =  User.objects.filter(username__exact=username)
        if not filter_result:
            raise forms.ValidationError("用户名不存在！")
        return username

class ProfileForm(forms.Form):
    name = forms.CharField(label='姓名', max_length=50, required=False)
    gender = forms.ChoiceField(label='性别',widget = forms.Select(),choices = ([('0','男'), ('1','女'), ]),required=False)

class PwdChangeForm(forms.Form):
    old_password = forms.CharField(label=' 原 密 码 ', widget=forms.PasswordInput)
    password1 = forms.CharField(label=' 新 密 码 ', widget=forms.PasswordInput)
    password2 = forms.CharField(label='确认密码', widget=forms.PasswordInput)

    def clean_password1(self):
        password1 = self.cleaned_data.get('password1')

        if len(password1) < 6:
            raise forms.ValidationError("密码太短！")
        elif len(password1) > 20:
            raise forms.validationError("密码太长！")
        return password1

    def clean_password2(self):
        password1 = self.cleaned_data.get('password1')
        password2 = self.cleaned_data.get('password2')

        if password1 and password2 and password1 != password2:
            raise forms.ValidationError("密码不匹配，请重新输入！")
        return password2

视图 views.py

用户通过POST方法提交表单，RegistrationForm 对所提及的数据进行验证是否有效。
如果用户没有提交表单或不是通过 POST 方法提交表单，则跳转到注册页面，生成一张空的 RegistrationForm

# project/views.py

from django.shortcuts import render, get_object_or_404, redirect
from django.contrib import auth
from django.contrib.auth.models import User

from .models import Teacher,Student
from .forms import RegistrationForm, LoginForm, ProfileForm, PwdChangeForm
from django.http import HttpResponseRedirect,Http404
from django.urls import reverse
from django.contrib.auth.decorators import login_required

def index(request):
    return render(request,'project/index.html')

def register(request):
    if request.method == 'POST':
        # 验证表单RegistrationForm的数据是否有效
        form = RegistrationForm(request.POST)
        if form.is_valid():
            username = form.cleaned_data['username']
            password = form.cleaned_data['password2']
            role = form.cleaned_data['role']
            # 使用内置User自带create_user方法创建用户，不需要使用save()
            user = User.objects.create_user(username=username, password=password)
            role_profile = Role(role=int(role),user=user)
            role_profile.save()
            # 如果直接使用objects.create()方法后不需要使用save()
            if int(role) == 0:
                user_profile = Student(user=role_profile)
                user_profile.save()
            else:
                user_profile = Teacher(user=role_profile)
                user_profile.save()
            #  注册成功，通过HttpResponseRedirect方法转到登陆页面
            return HttpResponseRedirect("/login/")
    else:
        form = RegistrationForm()
    return render(request, 'project/registration.html', {'form': form})

def login(request):
    if request.method == 'POST':
        form = LoginForm(request.POST)
        if form.is_valid():
            username = form.cleaned_data['username']
            password = form.cleaned_data['password']
            # 调用Django自带的auth.authenticate() 来验证用户名和密码是否正确
            user = auth.authenticate(username=username, password=password)
            if user is not None and user.is_active:
            	# 调用auth.login()来进行登录
                auth.login(request, user)
                # 登录成功，转到用户个人信息页面
                # []是有序的可reverse，{}是无序的
                return HttpResponseRedirect(reverse('project:index'))
            else:
                # 登陆失败
                return render(request, 'project/login.html', {'form': form,'message': '密码错误，请重试！'})
    else:
    	# 如果用户没有提交表单或不是通过POST方法提交表单，转到登录页面，生成一张空的LoginForm
        form = LoginForm()
    return render(request, 'project/login.html', {'form': form})

@login_required
def profile(request,pk):
	user = get_object_or_404(User,pk=pk)
	return render(request,'project/profile.html',{'user':user})

@login_required
def profile_update(request, pk):
    user = get_object_or_404(User, pk=pk)
    # user_profile = get_object_or_404(UserProfile, user=user)

    if request.method == "POST":
        form = ProfileForm(request.POST)

        if form.is_valid():
            if request.user.role.role == 0:
                user.role.student.name = form.cleaned_data['name']
                user.role.student.gender = form.cleaned_data['gender']
                user.role.student.save()
                return HttpResponseRedirect(reverse('project:profile', args=[user.id]))
            else:
                user.role.teacher.name = form.cleaned_data['name']
                user.role.teacher.gender = form.cleaned_data['gender']
                user.role.teacher.save()
                return HttpResponseRedirect(reverse('project:profile', args=[user.id]))
    else:
        if request.user.role.role == 0:
            default_data = {'name': user.role.student.name, 
                            'gender': user.role.student.gender,
                        }
        else:
            default_data = {'name': user.role.teacher.name, 
                            'gender': user.role.teacher.gender,
                        }
        form = ProfileForm(default_data)

    return render(request, 'project/profile_update.html', {'form': form, 'user': user})

@login_required
def logout(request):
    auth.logout(request)
    return HttpResponseRedirect("/login/")

@login_required
def pwd_change(request, pk):
    user = get_object_or_404(User, pk=pk)

    if request.method == "POST":
        form = PwdChangeForm(request.POST)

        if form.is_valid():

            password = form.cleaned_data['old_password']
            username = user.username
            
            user = auth.authenticate(username=username, password=password)

            if user is not None and user.is_active:
                new_password = form.cleaned_data['password2']
                user.set_password(new_password)
                user.save()
                return HttpResponseRedirect("/login/")

            else:
                return render(request, 'project/pwd_change.html', {'form': form,'user': user, 'message': '原密码错误，请重新输入！'})
    else:
        form = PwdChangeForm()

    return render(request, 'project/pwd_change.html', {'form': form, 'user': user})

URL重定向方法（可参考这里）

HttpResponseDirect - django.http 方法：例如 HttpResponseRedirect("/login/") HttpResponseRedirect(reverse('project:profile', args=[user.id]))

redirect - django.shortcuts 方法：例如 redirect('/index/') redirect('https://www.baidu.com/') redirect(reverse('project:profile'))

reverse - django.urls 方法：其作用是对已命名的URL进行反向解析，还传递相应的参数（args或带key的参数kargs)。

模板 Templates

这里只展示部分模板代码，其中注册模板代码如下：

<!--templates/project/registration.html-->

{% extends "project/base.html" %}
{% block content %}


<body class="gray-bg">

    <div class="middle-box text-center loginscreen   animated fadeInDown">
        <div>
            <div>

            </div>
            <h3>欢迎注册 </h3>
            <form class="m-t" method="post" action="" enctype="multipart/form-data">
                {% csrf_token %}
                {% for field in form %}
                <div class="form-group">
                    {{ field.errors }}
                    {{ field.label_tag }} {{ field }}
                    {% if field.help_text %}
                        <p class="help">{{ field.help_text|safe }}</p>
                    {% endif %}
                </div>
                {% endfor %}
                <button type="submit" class="btn btn-primary">注 册</button>

            </form>
    
        </div>
    </div>

</body>

</html>

{% endblock %}

登陆模板：

<!--templates/project/login.html-->

{% load staticfiles %}
{% load static %}
<!DOCTYPE html>
<html>
<head>
	<title>登陆</title>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="stylesheet" href="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/css/bootstrap.min.css">  
    <script src="https://cdn.staticfile.org/jquery/2.1.1/jquery.min.js"></script>
    <script src="https://cdn.staticfile.org/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script>
</head>
<body>
<style type="text/css">
body{
    background: url("../img/1.jpg");
    animation-name:myfirst;
    animation-duration:12s;
    /*变换时间*/
    animation-delay:2s;
    /*动画开始时间*/
    animation-iteration-count:infinite;
    /*下一周期循环播放*/
    animation-play-state:running;
    /*动画开始运行*/
}
@keyframes myfirst
{
    0%   {background:url("{% static '/img/th1.jpg' %}");}
    50%  {background:url("{% static '/img/th2.jpg' %}");}
    100% {background:url("{% static '/img/th1.jpg' %}");}
}
.form{background: rgba(255,255,255,0.2);width:400px;margin:120px auto;}
/*阴影*/
.fa{display: inline-block;top: 27px;left: 6px;position: relative;color: #ccc;}
input[type="text"],input[type="password"]{padding-left:26px;}

</style>

<body>
{% block content %}
<div class="container">
    <div class="form row">
        <div class="form-horizontal col-md-offset-3" id="login_form">
            <h3 class="form-title">登陆</h3>
            <form class="form-horizontal" method="post" action="" enctype="multipart/form-data">
            	{% csrf_token %}
            <div class="col-md-9">
                <div class="form-group">
                    <i class="fa fa-user fa-lg"></i>
                    <input class="form-control required" type="text" placeholder="Username" id="username" name="username"/>
                </div>
                <div class="form-group">
                    <i class="fa fa-lock fa-lg"></i>
                    <input class="form-control required" type="password" placeholder="Password" id="password" name="password"/>
                </div>
                <div class="form-group">
                    <a href="{% url 'project:register' %}">注册</a>
                </div>
                <div class="form-group col-md-offset-9">
                    <button type="submit" class="btn btn-success pull-right" name="submit">登录</button>
                </div>
            </div>
        	</form>
        </div>
    </div>
</div>
{% endblock %}
</body>

</html>

用户信息模板：

<!-- templates/project/profile.html-->
{% extends "project/base.html" %}
{% load static %}
{% block content %}	

<body class="gray-bg">
    <div class="wrapper wrapper-content">
        <div class="row animated fadeInRight">
            <div class="col-sm-3"></div>
            <div class="col-sm-6">
                <div class="ibox float-e-margins">
                    <div class="ibox-title">
                        <h5>个人资料</h5>
                    </div>
                    <div>
                        <div class="ibox-content no-padding border-left-right" align="center">
                            <a class="" href="#" title="">
                                <img alt="image" class="img-responsive" src="{% static '/img/p_big2.jpg' %}" >
                            </a>
                        </div>
                        <div class="ibox-content profile-content">
                            <h4><strong>姓名：{{ user.role.student.name }}{{ user.role.teacher.name }}</strong></h4>
                            <h4>用户名: {{ user.username }}</h4>
                            <h4>Email: {{ user.email }} </h4>

                            <p><i class="fa fa-map-marker"></i> 河北省xxxxxxxxxxxxx</p>
                            <h5>自我描述</h5>
                            <p>
                                会点前端技术，div+css啊，jQuery之类的，不是很精；热爱生活，热爱互联网，热爱新技术；有一个小的团队，在不断的寻求新的突破。
                            </p>
                            <p>
                                <ul>
                                    {% if request.user.role.role == 1 %}
                                        {% if request.user.role.teacher.gender %}
                                            <li>性别: 女 </li>
                                        {% else %}
                                            <li>性别: 男 </li>
                                        {% endif %}
                                    {% else %}
                                        {% if request.user.role.student.gender %}
                                            <li>性别: 女 </li>
                                        {% else %}
                                            <li>性别: 男 </li>
                                        {% endif %}
                                    {% endif %}

                                    {% if request.user.role.role == 1 %}
                                        <li>用户类型：教师 </li>
                                    {% else %}
                                        <li>用户类型：学生 </li>
                                    {% endif %}
                                    {% if user.role.role == 1 %}
                                    <li>职称: {{ user.role.teacher.ranks }} </li>
                                    {% else %}
                                    <li>班级: {{ user.role.student.classes }} </li>
                                    {% endif %}
                                </ul>
                            </p>
                            <div class="row m-t-lg">
                                <div class="col-sm-4">
                                </div>
                                <div class="col-sm-4">
                                </div>
                                <div class="col-sm-4">
                                </div>
                            </div>
                            <div class="user-button">
                                <div class="row">
                                    <div class="col-sm-6">
                                        {% if user.is_authenticated %}
                                        <a href="{% url 'project:profile_update' user.id %}">
                                            <button type="button" class="btn btn-primary btn-sm btn-block"><i class="fa fa-envelope"></i> 编辑信息</button>
                                        </a>
                                        {% endif %}
                                    </div>
                                    <div class="col-sm-6">
                                        {% if user.is_authenticated %}
                                        <a href="{% url 'project:pwd_change' user.id %}">
                                            <button type="button" class="btn btn-default btn-sm btn-block"><span class="glyphicon glyphicon-wrench"> </span> 修改密码</button>
                                        </a>
                                        {% endif %}
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
            <div class="col-sm-3"></div>
        </div>
    </div>

</body>


{% endblock %}

项目运行