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处理 get 与 post 方法

将 HTTP 动词路由到类方法

处理 get 与 post 方法 是 CoddyKit 上的免费 Django Academy 课时。这是第 3 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。

Verbs Become Methods

In a CBV, each HTTP verb maps to a method. A GET request runs your get method; a POST request runs your post method.

Subclass the Base View

For full control over verbs, subclass the base View class. You then define exactly the methods you want to support.

class ContactView(View):
    pass

Define a get Method

Add a get method to show the page, for example an empty contact form. It takes self and request and returns a response.

def get(self, request):
    return render(request, "contact.html")

Define a post Method

Add a post method to handle submitted data. Django routes the POST request here automatically.

def post(self, request):
    name = request.POST.get("name")
    return redirect("thanks")

No More method Checks

You no longer write if request.method == "POST". Django dispatches to the right method based on the verb for you.

dispatch Routes the Request

Behind the scenes, a method called dispatch inspects the verb and calls the matching method. You rarely touch it directly.

Unsupported Verbs Get 405

If a request uses a verb you did not define, Django returns 405 Method Not Allowed automatically. Safe by default.

The Classic GET-then-POST Flow

The usual pattern: get shows a form, the user submits, and post processes it. Two methods, one clean class.

Redirect After POST

After a successful post, return a redirect instead of rendering. This stops duplicate submissions on refresh.

Share State via self

Both methods live in the same class, so you can store shared values on self or call helper methods you define.

Wire It With as_view

Route the class the usual way with as_view(). Django builds the dispatcher and your get and post just work.

path("contact/", ContactView.as_view())

Quick Check

What happens on a POST to a CBV that only defines get?

Recap: get and post

You saw how CBVs map verbs to methods: get shows, post handles, dispatch routes, and undefined verbs return 405. No manual method checks. 🚦

常见问题解答

「处理 get 与 post 方法」课时是免费的吗？

是的 — 「处理 get 与 post 方法」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。

「处理 get 与 post 方法」这节课中我会学到什么？

将 HTTP 动词路由到类方法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 3 节课，共 4 节。

「处理 get 与 post 方法」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。

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