带参数的资源 URI
直接从 URI 路径中获取变量。
带参数的资源 URI 是 CoddyKit 上的免费 MCP 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 MCP Academy 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 MCP 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。
One Pattern, Many Resources
A static resource has one fixed address. A parameterized URI is a pattern that stands in for a whole family of resources at once. ✨
Placeholders in Curly Braces
You mark the variable part of a URI with a placeholder in curly braces, like users://{user_id}/profile. That brace is a slot to fill.
users://{user_id}/profileThe Template Is a Promise
A resource template tells the client: any URI matching this shape is valid. The model can plug in real values to ask for exactly what it needs.
Decorate to Register
In the Python SDK you register a template the same way as a tool: with the @mcp.resource decorator, passing the URI pattern as its argument.
@mcp.resource("users://{user_id}/profile")
def get_profile(user_id: str) -> str:
return f"Profile for {user_id}"Names Must Match
Every placeholder in the URI must appear as a function parameter with the same name. The SDK wires {user_id} straight into your user_id argument.
Capture More Than One
You can capture several variables in one URI. Multiple placeholders each map to their own parameter, so one pattern can pinpoint very specific data.
@mcp.resource("repos://{owner}/{name}/readme")
def readme(owner: str, name: str) -> str:
return load_readme(owner, name)Values Arrive as Strings
Captured pieces come in as text from the URI. If you need a number, convert it yourself inside the function before using it.
def get_page(page: str) -> str:
n = int(page)
return render_page(n)One Segment Per Placeholder
By default a placeholder captures a single path segment, the text between two slashes. It stops at the next slash, so it won't swallow the rest of the path.
Templates Don't List Themselves
A plain resource shows up in the resource list. A templated resource usually does not, since there are endless possible URIs. The client reads it by filling the pattern.
Keep URIs Meaningful
Design URIs that read like clear addresses, such as weather://{city}/today. A model picks the right resource far more reliably when the path explains itself.
weather://{city}/todayWhy This Matters
Parameterized URIs let one tidy function serve thousands of resources. You write the shape once, and the variable parts do the rest. 🎯
Quick Check
How does a captured URI placeholder reach your function?
Recap
You learned that parameterized URIs use curly-brace placeholders to serve a whole family of resources, each one mapped to a matching function parameter. Next: building their content. 🚀
常见问题解答
「带参数的资源 URI」课时是免费的吗？
是的 — 「带参数的资源 URI」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 MCP Academy 课程的其余内容，请升级到 CoddyKit PRO。 MCP Academy 课程共包含 4 节课。
「带参数的资源 URI」这节课中我会学到什么？
直接从 URI 路径中获取变量。 你通过在浏览器中直接运行的动手代码来练习 MCP 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 MCP Academy 需要有经验吗？
无需任何先前经验。CoddyKit 上的 MCP 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。
「带参数的资源 URI」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 MCP Academy 课中编写并运行代码吗？
能。每节 MCP 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。