Django Academy · 课时

HttpRequest 对象

读取 method、path、GET 与 POST 数据

HttpRequest 对象 是 CoddyKit 上的免费 Django Academy 课时。这是第 2 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。

Meet the Request Object

Django builds an HttpRequest for every visit and passes it to your view as the first argument, usually named request. 📨

def view(request):
    return HttpResponse("ok")

The HTTP Method

Check request.method to see how the page was asked for. It is a string like GET when reading or POST when submitting data.

if request.method == 'POST':
    save_it()

The Requested Path

Use request.path to read the URL path the user requested, such as /blog/. It is handy for logging and branching logic.

current = request.path  # "/blog/"

Query String Data

request.GET holds values from the URL query string. For a link to ?q=django, request.GET reads that q value for you.

term = request.GET.get('q', '')

Form Submission Data

request.POST carries data sent in a form submission. Pull a field by its name, just like reading from a dictionary.

name = request.POST.get('name')

Safe Defaults with get

Always use .get() on request.GET or POST. It returns a default instead of crashing when a key is missing from the data.

page = request.GET.get('page', 1)

Reading Request Headers

The request.headers object lets you read incoming HTTP headers like User-Agent or Accept by their name.

agent = request.headers.get('User-Agent')

The Logged-In User

Django attaches request.user so your view knows who is visiting. It is an authenticated user or an anonymous one.

if request.user.is_authenticated:
    greet()

Cookies on the Request

Read stored cookies through request.COOKIES, a simple dictionary of names and values the browser sent along.

theme = request.COOKIES.get('theme')

Session State

The request.session object persists data across requests for one visitor, perfect for a cart or a recent search.

request.session['count'] = 1

Files and Uploads

When a form uploads files, find them in request.FILES. Each entry is an uploaded file you can read or save to disk.

upload = request.FILES.get('avatar')

Quick Check

Where does Django put data from a submitted form?

Recap: One Object, Everything

The HttpRequest bundles the method, path, GET, POST, headers, user, and more. Read it to understand every visit. 🧰

常见问题解答

「HttpRequest 对象」课时是免费的吗？

是的 — 「HttpRequest 对象」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。

「HttpRequest 对象」这节课中我会学到什么？

读取 method、path、GET 与 POST 数据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 2 节课，共 4 节。

「HttpRequest 对象」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。

此课程中的所有课时

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