springboot2.4 集成wagger3

1、、添加依赖 
<dependency>
<groupId>io.springfox</groupId>
<artifactId>springfox-boot-starter</artifactId>
<version>3.0.0</version>
</dependency>

2、如果你的应用集成了WebMvcConfigurationSupport
，那么对不起，swagger-ui界面将不再能访问。解决方案就是需要重新映射一下swagger的静态资源，再转发一下html的请求

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/swagger-ui/**")
.addResourceLocations("classpath:/META-INF/resources/webjars/springfox-swagger-ui/").resourceChain(false);
}

@Override
public void addViewControllers(ViewControllerRegistry registry) {
registry.addViewController("/swagger-ui/").setViewName("forward:/swagger-ui/index.html");
}
}

3、如果你的项目中有权限认证的拦截器，那么得放过swagger相关的请求，不然被你给拦截了还怎么访问。

@Configuration
public class WebMvcConfig extends WebMvcConfigurationSupport {

@Autowired
private CommonInterceptor commonInterceptor;

@Override
public void addInterceptors(InterceptorRegistry registry) {
registry.addInterceptor(commonInterceptor).addPathPatterns("/**")
.excludePathPatterns(Arrays.asList("/swagger-ui.html", "/swagger-resources/**", "/v2/**", "/v3/api-docs"));
}
}

4、配置全局凭证

@Bean
public Docket docket() {
return new Docket(DocumentationType.OAS_30)
.securitySchemes(securitySchemes())
.securityContexts(securityContexts())
.select()
.apis(RequestHandlerSelectors.withClassAnnotation(Api.class))
.apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
.build();
}

private List<SecurityScheme> securitySchemes() {
List<SecurityScheme> securitySchemes = new ArrayList<>();
securitySchemes.add(new ApiKey(CommonConstants.HEADER_TOKEN, CommonConstants.HEADER_TOKEN, "header"));
return securitySchemes;
}
/**
* 授权信息全局应用
*/
private List<SecurityContext> securityContexts() {
List<SecurityContext> securityContexts = new ArrayList<>();
securityContexts.add(SecurityContext.builder()
.securityReferences(defaultAuth())
.forPaths(PathSelectors.any()).build());
return securityContexts;
}

private List<SecurityReference> defaultAuth() {
AuthorizationScope authorizationScope = new AuthorizationScope("global", "accessEverything");
AuthorizationScope[] authorizationScopes = new AuthorizationScope[1];
authorizationScopes[0] = authorizationScope;
List<SecurityReference> securityReferences = new ArrayList<>();
securityReferences.add(new SecurityReference(CommonConstants.HEADER_TOKEN, authorizationScopes));
return securityReferences;
}

参考：SpringBoot中使用swagger3 - 墨天轮