django 多級項(xiàng)目目錄的示例代碼
一、項(xiàng)目初始化
1. 創(chuàng)建虛擬環(huán)境并安裝依賴
# 創(chuàng)建虛擬環(huán)境 python3 -m venv env source env/bin/activate # 安裝依賴 pip install django python-decouple
2. 創(chuàng)建項(xiàng)目和基礎(chǔ)結(jié)構(gòu)
# 創(chuàng)建項(xiàng)目根目錄 mkdir myproject cd myproject # 創(chuàng)建配置目錄 mkdir config django-admin startproject myproject config --template=https://github.com/django-templates/django-project-template/archive/master.zip --name=Dockerfile,.env.example # 創(chuàng)建應(yīng)用目錄 mkdir apps cd apps django-admin startapp core django-admin startapp users cd .. # 創(chuàng)建其他目錄 mkdir libs static media templates scripts tests touch .gitignore
二、項(xiàng)目目錄結(jié)構(gòu)
myproject/ # 項(xiàng)目根目錄 ├── config/ # 項(xiàng)目配置目錄 │ ├── __init__.py │ ├── settings/ # 配置文件按環(huán)境分離 │ │ ├── __init__.py │ │ ├── base.py # 基礎(chǔ)配置 │ │ ├── dev.py # 開發(fā)環(huán)境配置 │ │ └── prod.py # 生產(chǎn)環(huán)境配置 │ ├── urls.py # 項(xiàng)目URL配置 │ └── wsgi.py # WSGI應(yīng)用配置 ├── apps/ # 自定義應(yīng)用目錄 │ ├── core/ # 核心功能應(yīng)用 │ │ ├── migrations/ │ │ ├── __init__.py │ │ ├── admin.py │ │ ├── apps.py │ │ ├── models.py │ │ ├── tests.py │ │ ├── urls.py │ │ └── views.py │ └── users/ # 用戶管理應(yīng)用 ├── libs/ # 自定義庫目錄 │ └── utils/ # 工具函數(shù) ├── static/ # 靜態(tài)文件目錄 ├── media/ # 上傳文件目錄 ├── templates/ # 模板文件目錄 ├── scripts/ # 腳本文件目錄 ├── tests/ # 測試目錄 ├── .env.example # 環(huán)境變量示例 ├── .gitignore # Git忽略規(guī)則 ├── manage.py # Django管理腳本 └── requirements.txt # 依賴包列表
三、配置文件實(shí)現(xiàn)
1. 環(huán)境變量管理(.env.example)
# .env.example SECRET_KEY=your-secret-key-here DEBUG=True ALLOWED_HOSTS=localhost,127.0.0.1
2. 配置文件分層(config/settings/)
# config/settings/base.py
from decouple import config
from pathlib import Path
BASE_DIR = Path(__file__).resolve().parent.parent.parent
SECRET_KEY = config('SECRET_KEY')
DEBUG = config('DEBUG', default=False, cast=bool)
ALLOWED_HOSTS = config('ALLOWED_HOSTS', default='', cast=lambda v: [s.strip() for s in v.split(',')])
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'apps.core',
'apps.users',
]
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',
]
ROOT_URLCONF = 'config.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [BASE_DIR / 'templates'],
'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 = 'config.wsgi.application'
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
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',
},
]
LANGUAGE_CODE = 'zh-hans'
TIME_ZONE = 'Asia/Shanghai'
USE_I18N = True
USE_L10N = True
USE_TZ = True
STATIC_URL = '/static/'
STATICFILES_DIRS = [BASE_DIR / 'static']
MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR / 'media'
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
# config/settings/dev.py
from .base import *
DEBUG = True
SECRET_KEY = 'development-secret-key'
ALLOWED_HOSTS = ['*']
INSTALLED_APPS += [
'debug_toolbar',
]
MIDDLEWARE += [
'debug_toolbar.middleware.DebugToolbarMiddleware',
]
INTERNAL_IPS = [
'127.0.0.1',
]
# 開發(fā)環(huán)境數(shù)據(jù)庫配置
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': BASE_DIR / 'db.sqlite3',
}
}
# config/settings/prod.py
from .base import *
DEBUG = False
# 生產(chǎn)環(huán)境需要從環(huán)境變量獲取敏感信息
SECRET_KEY = config('SECRET_KEY')
ALLOWED_HOSTS = config('ALLOWED_HOSTS', cast=lambda v: [s.strip() for s in v.split(',')])
# 生產(chǎn)環(huán)境數(shù)據(jù)庫配置
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.postgresql',
'NAME': config('DB_NAME'),
'USER': config('DB_USER'),
'PASSWORD': config('DB_PASSWORD'),
'HOST': config('DB_HOST'),
'PORT': config('DB_PORT'),
}
}
# 生產(chǎn)環(huán)境靜態(tài)文件配置
STATIC_ROOT = BASE_DIR / 'staticfiles'
# 安全配置
SECURE_SSL_REDIRECT = True
SESSION_COOKIE_SECURE = True
CSRF_COOKIE_SECURE = True
SECURE_HSTS_SECONDS = 31536000
SECURE_HSTS_INCLUDE_SUBDOMAINS = True
SECURE_HSTS_PRELOAD = True
四、核心應(yīng)用實(shí)現(xiàn)
1. 核心模型(apps/core/models.py)
from django.db import models
class TimeStampedModel(models.Model):
"""所有模型的基類,提供創(chuàng)建時間和更新時間"""
created_at = models.DateTimeField(auto_now_add=True)
updated_at = models.DateTimeField(auto_now=True)
class Meta:
abstract = True
class UUIDModel(models.Model):
"""使用UUID作為主鍵的模型基類"""
id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
class Meta:
abstract = True
2. 核心視圖(apps/core/views.py)
from django.shortcuts import render
from django.views.generic import TemplateView
class HomeView(TemplateView):
template_name = 'home.html'
3. 核心 URL 配置(apps/core/urls.py)
from django.urls import path
from .views import HomeView
urlpatterns = [
path('', HomeView.as_view(), name='home'),
]
五、用戶應(yīng)用實(shí)現(xiàn)
1. 用戶模型(apps/users/models.py)
from django.db import models
from django.contrib.auth.models import AbstractUser
from apps.core.models import TimeStampedModel
class User(AbstractUser, TimeStampedModel):
"""自定義用戶模型"""
phone = models.CharField(max_length=20, blank=True, null=True)
bio = models.TextField(blank=True, null=True)
def __str__(self):
return self.username
2. 用戶管理(apps/users/admin.py)
from django.contrib import admin
from django.contrib.auth.admin import UserAdmin
from .models import User
class CustomUserAdmin(UserAdmin):
fieldsets = (
(None, {'fields': ('username', 'password')}),
('個人信息', {'fields': ('first_name', 'last_name', 'email', 'phone', 'bio')}),
('權(quán)限', {'fields': ('is_active', 'is_staff', 'is_superuser', 'groups', 'user_permissions')}),
('重要日期', {'fields': ('last_login', 'date_joined')}),
)
admin.site.register(User, CustomUserAdmin)
六、項(xiàng)目 URL 配置
1. 主 URL 配置(config/urls.py)
from django.contrib import admin
from django.urls import path, include
from django.conf import settings
from django.conf.urls.static import static
urlpatterns = [
path('admin/', admin.site.urls),
path('', include('apps.core.urls')),
path('users/', include('apps.users.urls')),
]
if settings.DEBUG:
urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)
urlpatterns += static(settings.STATIC_URL, document_root=settings.STATIC_ROOT)
2. 用戶應(yīng)用 URL 配置(apps/users/urls.py)
from django.urls import path, include
from django.contrib.auth import views as auth_views
from .views import UserProfileView
urlpatterns = [
path('profile/', UserProfileView.as_view(), name='user-profile'),
path('login/', auth_views.LoginView.as_view(template_name='users/login.html'), name='login'),
path('logout/', auth_views.LogoutView.as_view(), name='logout'),
]
七、模板文件
1. 基礎(chǔ)模板(templates/base.html)
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{% block title %}MyProject{% endblock %}</title>
<link rel="stylesheet" rel="external nofollow" >
{% block extra_css %}{% endblock %}
</head>
<body>
<nav class="navbar navbar-expand-lg navbar-light bg-light">
<div class="container">
<a class="navbar-brand" href="{% url 'home' %}" rel="external nofollow" rel="external nofollow" >MyProject</a>
<button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNav" aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
<span class="navbar-toggler-icon"></span>
</button>
<div class="collapse navbar-collapse" id="navbarNav">
<ul class="navbar-nav">
<li class="nav-item">
<a class="nav-link" href="{% url 'home' %}" rel="external nofollow" rel="external nofollow" >首頁</a>
</li>
{% if user.is_authenticated %}
<li class="nav-item">
<a class="nav-link" href="{% url 'user-profile' %}" rel="external nofollow" >個人中心</a>
</li>
<li class="nav-item">
<a class="nav-link" href="{% url 'logout' %}" rel="external nofollow" >退出登錄</a>
</li>
{% else %}
<li class="nav-item">
<a class="nav-link" href="{% url 'login' %}" rel="external nofollow" rel="external nofollow" >登錄</a>
</li>
{% endif %}
</ul>
</div>
</div>
</nav>
<div class="container mt-4">
{% if messages %}
{% for message in messages %}
<div class="alert alert-{{ message.tags }}">
{{ message }}
</div>
{% endfor %}
{% endif %}
{% block content %}{% endblock %}
</div>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>
{% block extra_js %}{% endblock %}
</body>
</html>
2. 首頁模板(templates/home.html)
{% extends 'base.html' %}
{% block title %}首頁{% endblock %}
{% block content %}
<div class="jumbotron">
<h1 class="display-4">歡迎來到MyProject</h1>
<p class="lead">這是一個基于Django的多級項(xiàng)目結(jié)構(gòu)示例</p>
<hr class="my-4">
{% if user.is_authenticated %}
<p>你已登錄,{{ user.username }}!</p>
{% else %}
<p>請登錄以訪問更多功能</p>
<a class="btn btn-primary btn-lg" href="{% url 'login' %}" rel="external nofollow" rel="external nofollow" role="button">登錄</a>
{% endif %}
</div>
{% endblock %}
八、工具庫實(shí)現(xiàn)
1. 通用工具函數(shù)(libs/utils/common.py)
import uuid
import random
import string
def generate_random_string(length=10):
"""生成隨機(jī)字符串"""
return ''.join(random.choices(string.ascii_letters + string.digits, k=length))
def generate_uuid():
"""生成UUID"""
return str(uuid.uuid4())
def get_client_ip(request):
"""獲取客戶端IP地址"""
x_forwarded_for = request.META.get('HTTP_X_FORWARDED_FOR')
if x_forwarded_for:
ip = x_forwarded_for.split(',')[0]
else:
ip = request.META.get('REMOTE_ADDR')
return ip
九、項(xiàng)目啟動與測試
1. 創(chuàng)建并配置環(huán)境變量
cp .env.example .env # 編輯 .env 文件,設(shè)置 SECRET_KEY 等變量
2. 運(yùn)行數(shù)據(jù)庫遷移
python manage.py migrate --settings=config.settings.dev
3. 創(chuàng)建超級用戶
python manage.py createsuperuser --settings=config.settings.dev
4. 啟動開發(fā)服務(wù)器
python manage.py runserver --settings=config.settings.dev
5. 訪問網(wǎng)站
打開瀏覽器,訪問 http://localhost:8000
十、項(xiàng)目優(yōu)化與擴(kuò)展
1. 添加 Docker 支持
# Dockerfile FROM python:3.9-slim WORKDIR /app COPY requirements.txt . RUN pip install --no-cache-dir -r requirements.txt COPY . . CMD ["python", "manage.py", "runserver", "0.0.0.0:8000"]
2. 添加測試用例(tests/)
# tests/unit/test_models.py
from django.test import TestCase
from apps.users.models import User
class UserModelTestCase(TestCase):
def setUp(self):
self.user = User.objects.create_user(
username='testuser',
email='test@example.com',
password='testpassword'
)
def test_user_creation(self):
self.assertEqual(User.objects.count(), 1)
self.assertEqual(self.user.username, 'testuser')
self.assertEqual(self.user.email, 'test@example.com')
self.assertTrue(self.user.check_password('testpassword'))
項(xiàng)目總結(jié)
通過這個實(shí)戰(zhàn)教程,你學(xué)會了如何從零開始創(chuàng)建一個結(jié)構(gòu)清晰的 Django 多級項(xiàng)目:
- 項(xiàng)目初始化:創(chuàng)建虛擬環(huán)境、安裝依賴、生成基礎(chǔ)結(jié)構(gòu)
- 多級目錄設(shè)計(jì):配置目錄、應(yīng)用目錄、工具庫目錄分離
- 配置管理:使用環(huán)境變量和分層配置文件
- 核心應(yīng)用開發(fā):創(chuàng)建基礎(chǔ)模型、視圖和 URL 配置
- 用戶應(yīng)用開發(fā):擴(kuò)展用戶模型、實(shí)現(xiàn)認(rèn)證功能
- 模板系統(tǒng):使用繼承創(chuàng)建一致的頁面結(jié)構(gòu)
- 工具庫封裝:提取通用功能到獨(dú)立模塊
這種結(jié)構(gòu)使項(xiàng)目具有更好的可維護(hù)性、可擴(kuò)展性和團(tuán)隊(duì)協(xié)作效率,特別適合中大型項(xiàng)目。
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