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login、logout 与认证视图

接入 Django 开箱即用的认证视图

login、logout 与认证视图 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。

From Verify to Logged In

Verifying a user is only step one. To keep them logged in across requests, you start a session with Django's login helper. 🔑

The login() Function

login() takes the request and an authenticated user, then saves their id in the session. Future requests now know who they are.

from django.contrib.auth import login

Using login() in a View

After authenticate() succeeds, call login(request, user). From that point on, request.user is the signed-in person, not a guest.

if user is not None:
    login(request, user)

The logout() Function

To end a session, call logout(request). It clears the stored user id and any session data tied to that visit. 👋

from django.contrib.auth import logout
logout(request)

request.user Everywhere

Once logged in, request.user is available in every view. Check user.is_authenticated to tell members apart from anonymous visitors.

if request.user.is_authenticated:
    name = request.user.username

Skip the Boilerplate

Django ships ready-made auth views so you do not hand-write login pages. They handle the form, validation, and session for you.

Wire Up Auth URLs

Include django.contrib.auth.urls to get login, logout, and password routes instantly under a path you choose.

path("accounts/", include("django.contrib.auth.urls"))

LoginView in Action

The built-in LoginView renders a form and logs the user in on success. You mainly supply a template named registration/login.html.

LoginView Template Context

LoginView passes a form variable to your template. Just render that form inside a POST and Django handles the rest.

Where to Go After Login

Set LOGIN_REDIRECT_URL in settings to control where users land after a successful login, such as a dashboard.

LOGIN_REDIRECT_URL = "/dashboard/"

Logout Redirects Too

The matching LogoutView ends the session, and LOGOUT_REDIRECT_URL decides where signed-out users are sent next.

Quick Check

Which function actually starts a logged-in session?

Recap: Sessions and Auth Views

You used login() and logout() to manage sessions, and wired Django's auth views and redirect settings to avoid boilerplate. ✅

常见问题解答

「login、logout 与认证视图」课时是免费的吗？

是的 — 「login、logout 与认证视图」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。

「login、logout 与认证视图」这节课中我会学到什么？

接入 Django 开箱即用的认证视图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。

「login、logout 与认证视图」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。

此课程中的所有课时

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