Django项目实战(附源码免费下载)

编程知识更新时间:2023-04-05 20:12:25

制作图书管理系统（末尾附源码）
第一步先更改settings.py里面的必要配置,更改或附件项如下

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',  
    'front', #注册front
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middlewaremon.CommonMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware', 将此项先注释掉，避免post请求失败
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [os.path.join(BASE_DIR,'templates/')], #添加html文件的路径
        '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',
            ],
            'builtins':['django.templatetags.static'] #写入此项，后续添加static标签不用load
        },
    },
]

数据库更改
DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME':'test',
        'PORT':'3306',
        'USER':'root',
        'PASSWORD':'123456',
        'HOST':'localhost',
    }
}

urls.py里面加载文件路径如下：

urlpatterns = [
    path('',views.index,name='index'),
    path('add_book',views.add_book,name='add_book'),
    path('book_detail/<int:bid>/',views.book_detail,name='book_detail'),
    path('delete',views.delete,name='delete'),
]

在templates文件夹下创建base.html作为其他页面继承的模板

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图书管理系统</title>
    <link rel="stylesheet" href="{% static 'front/base.css' %}">
</head>
<body>
<nav>
    <ul class="nav">
        <li><a href="{% url 'index' %}">首页</a></li>
        <li><a href="{% url 'add_book' %}">增加图书</a></li>
    </ul>
</nav>

{% block content %}

{% endblock %}
</body>
</html>

首页index.html继承例子如下

{% extends 'base.html' %}
{% block content %}
<table>
    <thead>
        <tr>
            <th>序号</th>
            <th>书名</th>
            <th>作者</th>
        </tr>
    </thead>
    <tbody>
        {% for book in books %}
            <tr>
                <td>{{ forloop.counter }}</td>
                <td><a href="{% url 'book_detail' bid=book.0 %}">{{ book.1 }}</a></td>
                <td>{{ book.2 }}</td>
            </tr>
        {% endfor %}

    </tbody>
</table>
{% endblock %}

添加图书页面

{% extends 'base.html' %}

{% block content %}

    <form action="#" method="post">
        <table>
        <tr>
            <td>书名：</td>
            <td><input type="text" name="bname"></td>
        </tr>
        <tr>
            <td>作者：</td>
            <td><input type="text" name="author"></td>
        </tr>
        <tr>
            <td></td>
            <td><input type="submit" value="提交"></td>
        </tr>
        </table>
    </form>
{% endblock %}

模板渲染的css文件 base.css

*{
    margin: 0;
    padding: 0;
}


.nav{
    height: 65px;
    background: black;
    overflow: hidden;
}

.nav li{
    float: left;
    line-height: 65px;
    list-style: none;
    margin: 0 20px;
}

.nav li a{
    color: white;
    text-decoration: none;
}

.nav li a:hover{
    color: aqua;
}

add_book.html （添加图书页面代码）

{% extends 'base.html' %}

{% block content %}

    <form action="#" method="post">
        <table>
        <tr>
            <td>书名：</td>
            <td><input type="text" name="bname"></td>
        </tr>
        <tr>
            <td>作者：</td>
            <td><input type="text" name="author"></td>
        </tr>
        <tr>
            <td></td>
            <td><input type="submit" value="提交"></td>
        </tr>
        </table>
    </form>
{% endblock %}

图书详情页代码 book_detail.html

{% extends 'base.html' %}
{% block content %}
<p>{{ book.0 }}</p>
<p>{{ book.1 }}</p>
<p>{{ book.2 }}</p>
    <form action="{% url 'delete' %}" method="post">
        <input type="hidden" name="bid" value="{{ book.0 }}">
        <input type="submit" value="删除图书">
    </form>
{% endblock %}