參考：
https://swagger.io/
https://swagger.io/docs/
https://swagger.io/tools/swagger-ui/
https://github.com/swagger-api/swagger-core/wiki/
https://github.com/swagger-api/swagger-ui/wiki

http://springfox.github.io/springfox/
https://github.com/springfox/springfox
http://springfox.github.io/springfox/docs/current/
https://github.com/springfox/springfox-demos
https://github.com/springfox/springfox-demos/tree/2.9.2
https://github.com/springfox/springfox-demos/tree/3.0.0


1.引入依賴

    <!-- springfox-boot-starter -->
    <dependency>
      <groupId>io.springfox</groupId>
      <artifactId>springfox-boot-starter</artifactId>
      <version>3.0.0</version>
    </dependency>

    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
      <version>2.6.15</version>
    </dependency>


2.配置類

import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.boot.actuate.autoconfigure.endpoint.web.CorsEndpointProperties;
import org.springframework.boot.actuate.autoconfigure.endpoint.web.WebEndpointProperties;
import org.springframework.boot.actuate.autoconfigure.web.server.ManagementPortType;
import org.springframework.boot.actuate.endpoint.ExposableEndpoint;
import org.springframework.boot.actuate.endpoint.web.*;
import org.springframework.boot.actuate.endpoint.web.annotation.ControllerEndpointsSupplier;
import org.springframework.boot.actuate.endpoint.web.annotation.ServletEndpointsSupplier;
import org.springframework.boot.actuate.endpoint.web.servlet.WebMvcEndpointHandlerMapping;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.env.Environment;
import org.springframework.util.StringUtils;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.oas.annotations.EnableOpenApi;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.service.Contact;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

/**
 * 訪問：http://localhost:8080/swagger-ui/
 */
@Configuration
@EnableOpenApi
public class Swagger3Config {


    private String basePackage = "com.xxx.xxx.controller";


    @Bean
    public Docket createRestApi() {

        return new Docket(DocumentationType.OAS_30)
                .groupName("api")
                .enable(true) // .enable(!"prod".equals(active))
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage(basePackage)) // 基于包掃描
                .apis(RequestHandlerSelectors.withClassAnnotation(Api.class))  // 基于注解
                .apis(RequestHandlerSelectors.withMethodAnnotation(ApiOperation.class)) // 基于注解
                .paths(PathSelectors.any())
                .build();
    }


    private ApiInfo apiInfo() {
        return new ApiInfoBuilder()
                .title("API 接口文檔")
                .description("Restful API 接口文檔")
                .version("1.0")
                .contact(new Contact("聯(lián)系人姓名","聯(lián)系人url","聯(lián)系人email"))
                .termsOfServiceUrl("服務(wù)條款URL")
                .license("xxx License Version 1.0")
                .licenseUrl("http://www.xxx.xxx/licenses/LICENSE-1.0")
                .build();
    }




    /**
     * 增加如下配置可解決Spring Boot 6.x 與Swagger 3.0.0 不兼容問題
     **/
    @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));
    }

}



3.編寫代碼Controller

@Api(tags = "測試接口")
@Controller
@RequestMapping("/test")
public class TestController {

    @Autowired
    private RedisTemplate redisTemplate;


    @ApiOperation("set value 操作")
    @ResponseBody
    @RequestMapping(value = "/set", method = RequestMethod.POST)
    public String setVal(String key, String value) {

        redisTemplate.opsForValue().set(key, value);

        return "success set val";
    }

    @ApiOperation("get 操作")
    @ResponseBody
    @RequestMapping(value = "/get", method = RequestMethod.GET)
    public String getValue(String key) {

        String result = (String) redisTemplate.opsForValue().get(key);

        System.err.println("======> 返回結(jié)果result：" + result);

        return result;
    }


}


4.訪問與測試：http://localhost:8080/swagger-ui/

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