SpringBoot整合OpenApi的实践

<dependency>
    <groupId>io.springfox</groupId>
    <artifactId>springfox-boot-starter</artifactId>
    <version>3.0.0</version>
</dependency>

@EnableOpenApi
@Configuration
public class OpenApiConfiguration {

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.OAS_30)
                .apiInfo(apiInfo())
                .select()
                .apis(apis())
                .paths(PathSelectors.any())
                .build()
                .enable(true);
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("项目名称")
                .description("项目描述")
                .termsOfServiceUrl("项目地址")
                .version("API版本")
                .license("公司的license")
                .licenseUrl("公司的license地址")
                .build();
    }

    private Predicate<RequestHandler> apis() {
        return RequestHandlerSelectors.basePackage("controller包的路径");
    }
}

@Data
@Component
@ConfigurationProperties(prefix = "example.web.swagger")
public class SwaggerProperties {
    /**
     * 是否swagger3启用，默认不启用
     */
    private Boolean enable = false;
    /**
     * 扫描包路径，可以不指定，系统会通过自动扫描{@link io.swagger.annotations.ApiOperation}
     */
    private String basePackage;
    /**
     * 标题
     */
    private String title;
    /**
     * 应用描述
     */
    private String description;
    /**
     * 服务地址
     */
    private String serviceUrl;
    /**
     * 版本，默认V1.0.0
     */
    private String version = "V1.0.0";
    /**
     * license
     */
    private String license;
    /**
     * licenseUrl
     */
    private String licenseUrl;
}

@Slf4j
@Configuration
@EnableOpenApi
public class OpenApiConfiguration {

    @Resource
    private SwaggerProperties swaggerProperties;

    @Bean
    public Docket createRestApi() {
        return new Docket(DocumentationType.OAS_30)
                .apiInfo(apiInfo())
                .select()
                .apis(apis())
                .paths(PathSelectors.any())
                .build()
                .enable(isEnable());
    }

    private Boolean isEnable() {
        Boolean enable = swaggerProperties.getEnable();
        if (enable) {
            log.info("\nEnable Swagger3...");
        }
        return enable;
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title(swaggerProperties.getTitle())
                .description(swaggerProperties.getDescription())
                .termsOfServiceUrl(swaggerProperties.getServiceUrl())
                .version(swaggerProperties.getVersion())
                .license(swaggerProperties.getLicense())
                .licenseUrl(swaggerProperties.getLicenseUrl())
                .build();
    }

    private Predicate<RequestHandler> apis() {
        String basePackage = swaggerProperties.getBasePackage();
        // 默认通过扫描`ApiOperation`如果配置了包扫描路径，使用配置的包扫描路径
        return Strings.isNullOrEmpty(basePackage) ? withMethodAnnotation(ApiOperation.class) : basePackage(basePackage);
    }
}

example:
  web:
    swagger:
      enable: true
      title: 演示OpenAPI
      description: 演示OpenAPI
      base-package: com.example.controller

@Data
@ApiModel("用户信息")
public class UserVO {

    @ApiModelProperty(value = "用户id", required = true, example = "asdf124")
    private String userId;

    @ApiModelProperty(value = "用户名称", required = true)
    private String username;

    @ApiModelProperty(value = "用户年龄")
    private Integer age;
}

@RequestMapping("user")
@RestController
@Api(tags = "用户中心")
public class UserController {

    @ApiOperation("用户注册")
    @PostMapping
    public R<Void> register(@RequestBody UserVO userVO) {
        // todo 
        return R.ok();
    }

    @ApiOperation("通过Id获取用户信息")
    @GetMapping
    public R<UserVO> userInfo(@ApiParam(value = "用户id",required = true) @RequestParam String userId) {
        // todo
        return R.ok(new UserVO());
    }
}