11.Spring Boot 3.1.5 中使用 SpringDoc OpenAPI(替代 Swagger)生成 API 文档

Spring Boot 3.1.5 中使用 SpringDoc OpenAPI(替代 Swagger)生成 API 文档


1. 项目结构

假设项目名为 springboot-openapi-demo,以下是项目的基本结构:

springboot-openapi-demo/
├── src/
│   ├── main/
│   │   ├── java/
│   │   │   └── com/
│   │   │       └── example/
│   │   │           └── demo/
│   │   │               ├── DemoApplication.java        # 主启动类
│   │   │               ├── config/                     # 配置类目录
│   │   │               │   └── OpenApiConfig.java      # OpenAPI 配置类
│   │   │               ├── controller/                 # 控制器目录
│   │   │               │   └── UserController.java     # 示例控制器
│   │   │               └── model/                      # 模型类目录
│   │   │                   └── User.java               # 用户模型类
│   │   └── resources/
│   │       └── application.properties                 # 配置文件
└── pom.xml                                             # Maven 依赖配置

2. 创建 pom.xml 并添加依赖

pom.xml 中添加 Spring Boot 和 SpringDoc OpenAPI 的依赖:

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>3.1.5</version>
        <relativePath/> <!-- 查找父 POM 的位置 -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>springboot-openapi-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-openapi-demo</name>
    <description>Spring Boot 3.1.5 + SpringDoc OpenAPI 示例</description>

    <properties>
        <java.version>17</java.version> <!-- 指定 JDK 17 -->
        <springdoc-openapi.version>2.3.0
修复报错: java.lang.NoClassDefFoundError: org/yaml/snakeyaml/inspector/TagInspector at org.springframework.boot.env.YamlPropertySourceLoader.load(YamlPropertySourceLoader.java:50) at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:54) at org.springframework.boot.context.config.StandardConfigDataLoader.load(StandardConfigDataLoader.java:36) at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:96) at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:132) at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:87) at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:115) at org.springframework.boot.context.config.ConfigDataEnvironment.processInitial(ConfigDataEnvironment.java:242) at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:229) at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:96) at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:89) at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:109) at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:94) at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:185) at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:178) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:156) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:138) at org.springframework.boot.context.event.EventPublishingRunListener.multicastInitialEvent(EventPublishingRunListener.java:136) at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:81) at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:64) at java.base/java.lang.Iterable.forEach(Iterable.java:75) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118) at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112) at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:63) at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:369) at org.springframework.boot.SpringApplication.run(SpringApplication.java:329) ... 3 more Caused by: java.lang.ClassNotFoundException: org.yaml.snakeyaml.inspector.TagInspector at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:641) at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:188) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:526) ... 29 more
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11-15
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