一、项目初始化
1. 创建虚拟环境并安装依赖
# 创建虚拟环境 python3 -m venv env source env/bin/activate # 安装依赖 pip install django python-decouple
2. 创建项目和基础结构
# 创建项目根目录 mkdir myproject cd myproject # 创建配置目录 mkdir config django-admin startproject myproject config --template=https://github.com/django-templates/django-project-template/archive/master.zip --name=dockerfile,.env.example # 创建应用目录 mkdir apps cd apps django-admin startapp core django-admin startapp users cd .. # 创建其他目录 mkdir libs static media templates scripts tests touch .gitignore
二、项目目录结构
myproject/ # 项目根目录 ├── config/ # 项目配置目录 │ ├── __init__.py │ ├── settings/ # 配置文件按环境分离 │ │ ├── __init__.py │ │ ├── base.py # 基础配置 │ │ ├── dev.py # 开发环境配置 │ │ └── prod.py # 生产环境配置 │ ├── urls.py # 项目url配置 │ └── wsgi.py # wsgi应用配置 ├── apps/ # 自定义应用目录 │ ├── core/ # 核心功能应用 │ │ ├── migrations/ │ │ ├── __init__.py │ │ ├── admin.py │ │ ├── apps.py │ │ ├── models.py │ │ ├── tests.py │ │ ├── urls.py │ │ └── views.py │ └── users/ # 用户管理应用 ├── libs/ # 自定义库目录 │ └── utils/ # 工具函数 ├── static/ # 静态文件目录 ├── media/ # 上传文件目录 ├── templates/ # 模板文件目录 ├── scripts/ # 脚本文件目录 ├── tests/ # 测试目录 ├── .env.example # 环境变量示例 ├── .gitignore # git忽略规则 ├── manage.py # django管理脚本 └── requirements.txt # 依赖包列表
三、配置文件实现
1. 环境变量管理(.env.example)
# .env.example secret_key=your-secret-key-here debug=true allowed_hosts=localhost,127.0.0.1
2. 配置文件分层(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', ] # 开发环境数据库配置 databases = { 'default': { 'engine': 'django.db.backends.sqlite3', 'name': base_dir / 'db.sqlite3', } }
# config/settings/prod.py from .base import * debug = false # 生产环境需要从环境变量获取敏感信息 secret_key = config('secret_key') allowed_hosts = config('allowed_hosts', cast=lambda v: [s.strip() for s in v.split(',')]) # 生产环境数据库配置 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'), } } # 生产环境静态文件配置 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、核心应用实现
1. 核心模型(apps/core/models.py)
from django.db import models class timestampedmodel(models.model): """所有模型的基类,提供创建时间和更新时间""" 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作为主键的模型基类""" id = models.uuidfield(primary_key=true, default=uuid.uuid4, editable=false) class meta: abstract = true
2. 核心视图(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、用户应用实现
1. 用户模型(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): """自定义用户模型""" phone = models.charfield(max_length=20, blank=true, null=true) bio = models.textfield(blank=true, null=true) def __str__(self): return self.username
2. 用户管理(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')}), ('个人信息', {'fields': ('first_name', 'last_name', 'email', 'phone', 'bio')}), ('权限', {'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、项目 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. 用户应用 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. 基础模板(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" href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" 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" >首页</a> </li> {% if user.is_authenticated %} <li class="nav-item"> <a class="nav-link" href="{% url 'user-profile' %}" rel="external nofollow" >个人中心</a> </li> <li class="nav-item"> <a class="nav-link" href="{% url 'logout' %}" rel="external nofollow" >退出登录</a> </li> {% else %} <li class="nav-item"> <a class="nav-link" href="{% url 'login' %}" rel="external nofollow" rel="external nofollow" >登录</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. 首页模板(templates/home.html)
{% extends 'base.html' %} {% block title %}首页{% endblock %} {% block content %} <div class="jumbotron"> <h1 class="display-4">欢迎来到myproject</h1> <p class="lead">这是一个基于django的多级项目结构示例</p> <hr class="my-4"> {% if user.is_authenticated %} <p>你已登录,{{ user.username }}!</p> {% else %} <p>请登录以访问更多功能</p> <a class="btn btn-primary btn-lg" href="{% url 'login' %}" rel="external nofollow" rel="external nofollow" role="button">登录</a> {% endif %} </div> {% endblock %}
八、工具库实现
1. 通用工具函数(libs/utils/common.py)
import uuid import random import string def generate_random_string(length=10): """生成随机字符串""" 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): """获取客户端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、项目启动与测试
1. 创建并配置环境变量
cp .env.example .env # 编辑 .env 文件,设置 secret_key 等变量
2. 运行数据库迁移
python manage.py migrate --settings=config.settings.dev
3. 创建超级用户
python manage.py createsuperuser --settings=config.settings.dev
4. 启动开发服务器
python manage.py runserver --settings=config.settings.dev
5. 访问网站
打开浏览器,访问 http://localhost:8000
十、项目优化与扩展
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. 添加测试用例(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'))
项目总结
通过这个实战教程,你学会了如何从零开始创建一个结构清晰的 django 多级项目:
- 项目初始化:创建虚拟环境、安装依赖、生成基础结构
- 多级目录设计:配置目录、应用目录、工具库目录分离
- 配置管理:使用环境变量和分层配置文件
- 核心应用开发:创建基础模型、视图和 url 配置
- 用户应用开发:扩展用户模型、实现认证功能
- 模板系统:使用继承创建一致的页面结构
- 工具库封装:提取通用功能到独立模块
这种结构使项目具有更好的可维护性、可扩展性和团队协作效率,特别适合中大型项目。
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