1. 引入Swagger3依赖以及UI美化

1. 引入Swagger3依赖以及UI美化

        <dependency>
            <groupId>io.springfox</groupId>
            <artifactId>springfox-boot-starter</artifactId>
            <version>3.0.0</version>
        </dependency>
        <dependency>
            <groupId>com.github.xiaoymin</groupId>
            <artifactId>knife4j-spring-ui</artifactId>
            <version>3.0.3</version>
        </dependency>

2. application.yml填写配置

swagger:
  enabled: true

3. 编写SwaggerConfig配置文件

/**
 * @program: payment-demo
 * @description:
 * @author: Acerola
 * @create: 2022-03-26 09:45
 **/
@Configuration
@EnableOpenApi
//@EnableSwaggerBootstrapUI
public class SwaggerConfig {
    @Value("${swagger.enabled}")
    private boolean enable;

    /**
     * 创建API
     * http:IP:端口号/swagger-ui/index.html 原生地址
     * http:IP:端口号/doc.html bootStrap-UI地址
     */
    @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）
                /*.enable(enable)*/
                .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());

    }

    /**
     * 支持的通讯协议集合
     * @param type1
     * @param type2
     * @return
     */
    private Set<String> newHashSet(String type1, String type2){
        Set<String> set = new HashSet<>();
        set.add(type1);
        set.add(type2);
        return set;
    }

    /**
     * 认证的安全上下文
     */
    private List<SecurityScheme> securitySchemes() {
        List<SecurityScheme> securitySchemes = new ArrayList<>();
        securitySchemes.add((SecurityScheme) new ApiKey("token", "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("Authorization", authorizationScopes));
        return securityReferences;
    }

    /**
     * 添加摘要信息
     */
    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();
    }
}

4.访问地址

http://ip:port/doc.html

5.效果展示