1. 引入Swagger3依赖以及UI美化

        
            io.springfox
            springfox-boot-starter
            3.0.0
        
        
            com.github.xiaoymin
            knife4j-spring-ui
            3.0.3
        

swagger:
  enabled: true

@Configuration
@EnableOpenApi
//@EnableSwaggerBootstrapUI
public class SwaggerConfig {
    @Value("${swagger.enabled}")
    private boolean enable;

    
    @Bean
    public Docket createRestApi() {
        return new Docket(documentationType.OAS_30).pathMapping("/")
                // 用来创建该API的基本信息，展示在文档的页面中（自定义展示的信息）
                
                .apiInfo(apiInfo())
                // 设置哪些接口暴露给Swagger展示
                .select()
                // 扫描所有有注解的api，用这种方式更灵活
                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class))
                // 扫描指定包中的swagger注解
                .apis(RequestHandlerSelectors.basePackage("com.acerola.paymentdemo.controller"))
                // 扫描所有 .apis(RequestHandlerSelectors.any())
                .paths(PathSelectors.regex("(?!/ApiError.*).*"))
                .paths(PathSelectors.any())
                .build()
                // 支持的通讯协议集合
                .protocols(newHashSet("https", "http"))
                .securitySchemes(securitySchemes())
                .securityContexts(securityContexts());

    }

    
    private Set newHashSet(String type1, String type2){
        Set set = new HashSet<>();
        set.add(type1);
        set.add(type2);
        return set;
    }

    
    private List securitySchemes() {
        List securitySchemes = new ArrayList<>();
        securitySchemes.add((SecurityScheme) new ApiKey("token", "token", "header"));
        return securitySchemes;
    }

    
    private List securityContexts() {
        List securityContexts = new ArrayList<>();
        securityContexts.add(SecurityContext.builder()
                .securityReferences(defaultAuth())
                .forPaths(PathSelectors.any()).build());
        return securityContexts;
    }

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

    
    private ApiInfo apiInfo() {
        // 用ApiInfoBuilder进行定制
        return new ApiInfoBuilder()
                // 设置标题
                .title("微信支付")
                // 描述
                .description("微信支付")
                // 作者信息
                .contact(new Contact("doctorCloud", null, null))
                // 版本
                .version("版本号:V.1")
                //协议
                .license("The Apache License")
                //协议url
                .licenseUrl("http://www.baidu.com")
                .build();
    }
}

http://ip:port/doc.html