请求如何到达您的视图
了解 WSGI、URL 解析器以及请求到达代码的路径
请求如何到达您的视图 是 CoddyKit 上的免费 Django Academy 课时。 这是第 1 节课，共 4 节。 你可以在下方免费阅读本课时的完整内容 — 然后在浏览器中使用内置代码编辑器和全天候 AI 导师进行实践。 这是 Django Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Django Academy 课程共包含 4 节课。
本课时的部分内容尚未翻译，以英文显示。
It Starts with a Click
Every Django page begins as an HTTP request. A browser asks for a URL, and Django's job is to answer with a response. 🌐
The Web Server Out Front
A web server like Nginx receives the raw request first. It handles networking, then hands the request off to Django to do the real work.
WSGI: The Handshake
WSGI is the standard interface between the web server and Django. It turns the incoming request into something your Python code can read.
The WSGI Application
Django ships a callable in wsgi.py. The server calls it for each request, and Django takes over from there to route and respond.
from django.core.wsgi import get_wsgi_application
application = get_wsgi_application()Middleware Runs First
Before your view, the request passes through middleware. Each layer can inspect or tweak the request, like adding security checks.
The URL Resolver
Django reads urls.py and matches the requested path against your patterns. The first pattern that matches wins the request.
urlpatterns = [
path('about/', views.about),
]Matching the Path
If the path is /about/, Django finds the matching pattern and notes which view should handle it. No match means a 404.
Calling Your View
Django calls your view function and passes it the request object. This is where your own code finally takes control.
def about(request):
return HttpResponse("Hi")The View Returns a Response
Your view must return an HttpResponse. Django takes that object and hands it back up the chain toward the browser.
Back Through Middleware
The response travels back through middleware in reverse order. Layers can add headers or compress content before it leaves.
Out to the Browser
The web server sends the finished response across the network. The browser renders it, completing one full request cycle. ✅
Quick Check
Which component matches the requested path to a view?
Recap: The Journey
A request flows from server to WSGI, through middleware, to the URL resolver, then your view, and back out as a response. That loop is Django. 🎉
常见问题解答
「请求如何到达您的视图」课时是免费的吗？
是的 — 「请求如何到达您的视图」的完整文本可在网页上免费阅读。要进行交互式练习（内置代码编辑器和全天候 AI 导师）并解锁 Django Academy 课程的其余内容，请升级到 CoddyKit PRO。 Django Academy 课程共包含 4 节课。
「请求如何到达您的视图」这节课中我会学到什么？
了解 WSGI、URL 解析器以及请求到达代码的路径 你通过在浏览器中直接运行的动手代码来练习 Django Academy，全天候 AI 导师会在你学习这节课的过程中回答你的问题。
学习 Django Academy 需要有经验吗？
无需任何先前经验。CoddyKit 上的 Django Academy 课程适合初学者到高级学习者，你可以从这里开始或从头开始，按照自己的节奏学习。 这是第 1 节课，共 4 节。
「请求如何到达您的视图」课时需要多长时间？
大多数 CoddyKit 课程大约需要 5–10 分钟。每节课都很精短且互动，所以你能稳步进步，并在网页和应用中从离开的地方继续。
我能在这节 Django Academy 课中编写并运行代码吗？
能。每节 Django Academy 课都包含内置代码编辑器，你可以在浏览器中直接编写并运行真实代码，并获得即时 AI 反馈 — 无需本地设置。