SpringBoot应用引入knife4j

1、前言

knife4j可以说是springfox-swagger的增强组件，在拥有基础简洁、强大的API接口文档基础上，拥有一个管理页面，可以自行下载离线API文档，便于快速提交给测试人员，便于查看和回溯。

2、正文

1、我在上一篇文档中已经说过了SpringBoot集成swagger2的方法，如果有使用过，可以快速集成。只需要将springfox-boot-starter 替换为knife4j-spring-boot-starter，添加@EnableKnife4j增强注解即可。如下：

        <!--整合Knife4j-->
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>knife4j-spring-boot-starter</artifactId>
            <version>3.0.3</version>
        </dependency>

2、这样就引入了knife4j，然后再配置类添加增强注解。

@Configuration
@EnableKnife4j
public class Swagger2Config {

    @Bean
    public Docket docket() {
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .enable(true)
                .select()
                .apis(RequestHandlerSelectors.basePackage("cn.futures.controller"))
                .paths(PathSelectors.any())
                .build();
    }

    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("API文档")
                .description("API文档")
                .version("1.0.0")
                .build();
    }

    /**
     * 增加如下配置可解决Spring Boot 2.6.x 与Swagger 3.0.0 不兼容问题
     */
    @Bean
    public WebMvcEndpointHandlerMapping webEndpointServletHandlerMapping(WebEndpointsSupplier webEndpointsSupplier, ServletEndpointsSupplier servletEndpointsSupplier, ControllerEndpointsSupplier controllerEndpointsSupplier, EndpointMediaTypes endpointMediaTypes, CorsEndpointProperties corsProperties, WebEndpointProperties webEndpointProperties, Environment environment) {
        List<ExposableEndpoint<?>> allEndpoints = new ArrayList<>();
        Collection<ExposableWebEndpoint> webEndpoints = webEndpointsSupplier.getEndpoints();
        allEndpoints.addAll(webEndpoints);
        allEndpoints.addAll(servletEndpointsSupplier.getEndpoints());
        allEndpoints.addAll(controllerEndpointsSupplier.getEndpoints());
        String basePath = webEndpointProperties.getBasePath();
        EndpointMapping endpointMapping = new EndpointMapping(basePath);
        boolean shouldRegisterLinksMapping = this.shouldRegisterLinksMapping(webEndpointProperties, environment, basePath);
        return new WebMvcEndpointHandlerMapping(endpointMapping, webEndpoints, endpointMediaTypes, corsProperties.toCorsConfiguration(), new EndpointLinksResolver(allEndpoints, basePath), shouldRegisterLinksMapping, null);
    }

    private boolean shouldRegisterLinksMapping(WebEndpointProperties webEndpointProperties, Environment environment, String basePath) {
        return webEndpointProperties.getDiscovery().isEnabled() && (StringUtils.hasText(basePath) || ManagementPortType.get(environment).equals(ManagementPortType.DIFFERENT));
    }