一、maven配置:

<dependency>
            <groupId>org.springdoc</groupId>
            <artifactId>springdoc-openapi-ui</artifactId>
            <version>1.5.12</version>
        </dependency>

二、配置文件OpenApiConfig.class （⚠️：需要修改扫描路径）

import io.swagger.v3.oas.models.Components;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Contact;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import io.swagger.v3.oas.models.security.SecurityRequirement;
import io.swagger.v3.oas.models.security.SecurityScheme;
import org.springdoc.core.GroupedOpenApi;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;


/**
 * springDoc-swagger标准配置
 *
 * @author huang cheng
 * 2021/8/13
 */
@Configuration
public class SpringDocSwaggerConfig {
   
    private static final String basePackage = "com.resume.uniapp.controller";//需要扫描api路径，修改成自己controller文件的路径
    private static final String headerName = "Authorization";//请求头名称

    @Bean
    public GroupedOpenApi usersGroup() {
        return GroupedOpenApi.builder()
                .group("users")
                .addOperationCustomizer((operation, handlerMethod) -> {
                    operation.addSecurityItem(new SecurityRequirement().addList(headerName));
                    return operation;
                })
                .packagesToScan(basePackage)
                .build();
    }

    @Bean
    public OpenAPI customOpenAPI() {
        Components components = new Components();
        //添加右上角的统一安全认证
        components.addSecuritySchemes(headerName,
                new SecurityScheme()
                        .type(SecurityScheme.Type.APIKEY)
                        .scheme("basic")
                        .name(headerName)
                        .in(SecurityScheme.In.HEADER)
                        .description("请求头")
        );

        return new OpenAPI()
                .components(components)
                .info(apiInfo());
    }

    private Info apiInfo() {
        Contact contact = new Contact();
        contact.setEmail("1003816735@qq.com");
        contact.setName("cheng");
        contact.setUrl("https://blog.csdn.net/qq_42495847?spm=1000.2115.3001.5343");
        return new Info()
                .title("sunnyDay-swagger文档")
                .version("1.0")
                .contact(contact)
                .description("博客请关注：https://blog.csdn.net/qq_42495847?spm=1000.2115.3001.5343")
                .license(new License().name("Apache 2.0").url("http://springdoc.org"));
    }

}

三、Controller简单注释

@Tag(name = "用户基本信息")
@RestController
@RequestMapping("/user")
public class UserInfoController {
    @Resource
    private UserInfoService userService;
    @Operation(summary = "查询全部数据")
    @GetMapping("/selectAll")
    public R selectAll(){
        R r = new R();
        r.setData(userService.selectAll());
        return r;
    }
}

参考http://l.lvovl.cn/swagger-springdoc基础使用/