OpenAPI 3 与 Swagger

Swagger 可以快速生成实时接口文档，方便前后开发人员进行协调沟通。遵循 OpenAPI 规范。

文档：https://springdoc.org/v2/

1. OpenAPI 3 架构

2. 整合

导入场景

<dependency>
    <groupId>org.springdoc</groupId>
    <artifactId>springdoc-openapi-starter-webmvc-ui</artifactId>
    <version>2.1.0</version>
</dependency>

配置

# /api-docs endpoint custom path 默认 /v3/api-docs
springdoc.api-docs.path=/api-docs

# swagger 相关配置在  springdoc.swagger-ui
# swagger-ui custom path
springdoc.swagger-ui.path=/swagger-ui.html

springdoc.show-actuator=true

3. 使用

1. 常用注解

2. Docket配置

如果有多个Docket，配置如下

  @Bean
  public GroupedOpenApi publicApi() {
      return GroupedOpenApi.builder()
              .group("springshop-public")
              .pathsToMatch("/public/**")
              .build();
  }
  @Bean
  public GroupedOpenApi adminApi() {
      return GroupedOpenApi.builder()
              .group("springshop-admin")
              .pathsToMatch("/admin/**")
              .addMethodFilter(method -> method.isAnnotationPresent(Admin.class))
              .build();
  }

如果只有一个Docket，可以配置如下

springdoc.packagesToScan=package1, package2
springdoc.pathsToMatch=/v1, /api/balance/**

3. OpenAPI配置

  @Bean
  public OpenAPI springShopOpenAPI() {
      return new OpenAPI()
              .info(new Info().title("SpringShop API")
              .description("Spring shop sample application")
              .version("v0.0.1")
              .license(new License().name("Apache 2.0").url("http://springdoc.org")))
              .externalDocs(new ExternalDocumentation()
              .description("SpringShop Wiki Documentation")
              .url("https://springshop.wiki.github.org/docs"));
  }

4. Springfox 迁移

3.1 注解变化

3.2 Docket配置

1. 以前写法

  @Bean
  public Docket publicApi() {
      return new Docket(DocumentationType.SWAGGER_2)
              .select()
              .apis(RequestHandlerSelectors.basePackage("org.github.springshop.web.public"))
              .paths(PathSelectors.regex("/public.*"))
              .build()
              .groupName("springshop-public")
              .apiInfo(apiInfo());
  }

  @Bean
  public Docket adminApi() {
      return new Docket(DocumentationType.SWAGGER_2)
              .select()
              .apis(RequestHandlerSelectors.basePackage("org.github.springshop.web.admin"))
              .paths(PathSelectors.regex("/admin.*"))
              .apis(RequestHandlerSelectors.withMethodAnnotation(Admin.class))
              .build()
              .groupName("springshop-admin")
              .apiInfo(apiInfo());
  }

2. 新写法

  @Bean
  public GroupedOpenApi publicApi() {
      return GroupedOpenApi.builder()
              .group("springshop-public")
              .pathsToMatch("/public/**")
              .build();
  }
  @Bean
  public GroupedOpenApi adminApi() {
      return GroupedOpenApi.builder()
              .group("springshop-admin")
              .pathsToMatch("/admin/**")
              .addOpenApiMethodFilter(method -> method.isAnnotationPresent(Admin.class))
              .build();
  }

3. 添加OpenAPI组件

  @Bean
  public OpenAPI springShopOpenAPI() {
      return new OpenAPI()
              .info(new Info().title("SpringShop API")
              .description("Spring shop sample application")
              .version("v0.0.1")
              .license(new License().name("Apache 2.0").url("http://springdoc.org")))
              .externalDocs(new ExternalDocumentation()
              .description("SpringShop Wiki Documentation")
              .url("https://springshop.wiki.github.org/docs"));
  }