Spring Boot 4 Microservices & REST APIs · 课时

将 SpringDoc 添加到项目

自动生成 OpenAPI 文档

第 1 / 4 课13 个步骤

将 SpringDoc 添加到项目 是 CoddyKit 上的免费 Spring Boot 4 Microservices & REST APIs 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 Spring Boot 4 Microservices & REST APIs 学习路径的一部分，你的进度在网页和 CoddyKit 应用中同步。 Spring Boot 4 Microservices & REST APIs 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。

Why document your API?

An API without docs is hard to consume. OpenAPI (formerly Swagger) is a standard, machine-readable description of your REST API that powers interactive docs, client generation and contract testing.

What SpringDoc does

SpringDoc OpenAPI inspects your Spring controllers at runtime and generates the OpenAPI spec automatically - no hand-written YAML needed.

Reads your @RestController mappings
Serves the spec and a Swagger UI

Adding the starter (Maven)

Add the springdoc-openapi-starter-webmvc-ui dependency. The -ui variant bundles Swagger UI as well as the JSON spec.

<dependency>
  <groupId>org.springdoc</groupId>
  <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
  <version>2.6.0</version>
</dependency>

Adding the starter (Gradle)

The Gradle coordinates are the same artifact.

implementation "org.springdoc:springdoc-openapi-starter-webmvc-ui:2.6.0"

WebMVC vs WebFlux

Pick the starter matching your stack:

Servlet apps -> springdoc-openapi-starter-webmvc-ui
Reactive apps -> springdoc-openapi-starter-webflux-ui

Zero config to start

With just the dependency, start the app and SpringDoc auto-configures everything. You immediately get the generated spec and UI without writing any code.

The generated JSON endpoint

The raw OpenAPI document is served at /v3/api-docs by default. This JSON can feed code generators, Postman, or API gateways.

// GET http://localhost:8080/v3/api-docs
// returns the full OpenAPI 3 JSON document

The Swagger UI endpoint

The interactive UI is at /swagger-ui.html. It lists every endpoint and lets you try requests in the browser.

// open http://localhost:8080/swagger-ui.html

Changing the default paths

You can relocate the spec and UI via properties, useful behind a gateway or to avoid collisions.

# application.yml
springdoc:
  api-docs:
    path: /api-docs
  swagger-ui:
    path: /docs.html

What gets detected automatically

SpringDoc infers a lot with no annotations: paths, HTTP methods, path/query params, request and response body schemas from your DTO classes, and response status codes.

Disabling in production (optional)

Some teams expose docs only in non-prod. Toggle with properties so the spec and UI are not served in production.

# disable everywhere
springdoc:
  api-docs:
    enabled: false
  swagger-ui:
    enabled: false

Quick Check

Confirm the basics of adding SpringDoc.

在交互式课程中回答

Recap

You bootstrapped API docs:

SpringDoc generates the OpenAPI spec from your controllers
Add springdoc-openapi-starter-webmvc-ui (or webflux)
Spec at /v3/api-docs, UI at /swagger-ui.html
Paths and enablement are configurable via properties

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常见问题解答

「将 SpringDoc 添加到项目」课时是免费的吗？

是的 — 「将 SpringDoc 添加到项目」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 Spring Boot 4 Microservices & REST APIs 课程的其余内容，请升级到 CoddyKit PRO。 Spring Boot 4 Microservices & REST APIs 课程共包含 4 节课。

「将 SpringDoc 添加到项目」这节课中我会学到什么？

自动生成 OpenAPI 文档你通过在浏览器中直接运行的动手代码来练习 Spring Boot 4 Microservices & REST APIs，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 Spring Boot 4 Microservices & REST APIs 需要有经验吗？

无需任何先前经验。CoddyKit 上的 Spring Boot 4 Microservices & REST APIs 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。

「将 SpringDoc 添加到项目」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 Spring Boot 4 Microservices & REST APIs 课中编写并运行代码吗？

能。每节 Spring Boot 4 Microservices & REST APIs 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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