声明路由允许的方法
将 methods 传给 @app.route 以支持 GET 和 POST
声明路由允许的方法 是 CoddyKit 上的免费 Flask 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 Flask Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Flask 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。
Routes Default to GET
Every Flask route you write so far only answers GET requests. Browsers use GET to fetch pages, so it is the natural default.
The methods Argument
To accept other verbs, pass a methods list to the route decorator. It tells Flask exactly which HTTP verbs the view will handle.
@app.route("/submit", methods=["GET", "POST"])
def submit():
return "ok"Why List GET Explicitly
Once you set methods, the implicit GET disappears. If you still want GET, you must include it in the list yourself.
A POST-Only Route
Some endpoints should never serve a page. Make a route POST-only by listing just POST, and GET requests will be refused.
@app.route("/api/items", methods=["POST"])
def create_item():
return "created"Verbs Are Uppercase Strings
Flask expects each verb as an uppercase string like "GET" or "POST". Lowercase entries simply will not match incoming requests.
HEAD Comes for Free
When you allow GET, Flask also answers HEAD automatically. HEAD returns the same headers as GET but with no body.
OPTIONS Is Added Too
Flask auto-handles OPTIONS as well, replying with an Allow header that lists the methods your route accepts.
Beyond GET and POST
APIs often need more verbs. You can list PUT, PATCH, or DELETE the same way to support updating and removing resources.
@app.route("/api/items/<id>", methods=["PUT", "DELETE"])
def edit_item(id):
return "changed"One Function, Many Methods
A single view can accept several verbs at once. Inside it you decide what each verb does, all from one function.
Match the Verb to Intent
Use GET to read and POST to create. Choosing the right verb keeps your API predictable for every client that calls it.
Wrong Verb, No Match
If a client uses a verb you never listed, Flask refuses the request entirely. Declaring methods is your first line of access control.
Quick Check
Think about what happens to GET when you set methods.
Recap
Routes default to GET, but the methods list lets you accept POST, PUT, and more. List GET yourself if you still need it. Nicely done! 🎉
常见问题解答
「声明路由允许的方法」课时是免费的吗？
是的 — 「声明路由允许的方法」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 Flask Academy 课程的其余内容，请升级到 CoddyKit PRO。 Flask Academy 课程共包含 4 节课。
「声明路由允许的方法」这节课中我会学到什么？
将 methods 传给 @app.route 以支持 GET 和 POST 你通过在浏览器中直接运行的动手代码来练习 Flask 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 Flask Academy 需要有经验吗？
无需任何先前经验。CoddyKit 上的 Flask 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。
「声明路由允许的方法」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 Flask Academy 课中编写并运行代码吗？
能。每节 Flask 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。