添加依赖

		<dependency><groupId>com.spring4all</groupId><artifactId>swagger-spring-boot-starter</artifactId><version>2.0.2</version></dependency>

添加配置类，与服务启动类同一个层级
地址：http://localhost:port/swagger-ui/index.html

package com.brt.cloudGateway;import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
import reactor.core.publisher.Mono;
import springfox.documentation.swagger.web.*;@RestController
public class SwaggerHandlerController {@Autowired(required = false)private SecurityConfiguration securityConfiguration;@Autowired(required = false)private UiConfiguration uiConfiguration;private final SwaggerResourcesProvider swaggerResources;@Autowiredpublic SwaggerHandlerController(SwaggerResourcesProvider swaggerResources) {this.swaggerResources = swaggerResources;}@GetMapping("/swagger-resources/configuration/security")public Mono<ResponseEntity<SecurityConfiguration>> securityConfiguration() {return Mono.just(new ResponseEntity<>(Optional.ofNullable(securityConfiguration).orElse(SecurityConfigurationBuilder.builder().build()), HttpStatus.OK));}@GetMapping("/swagger-resources/configuration/ui")public Mono<ResponseEntity<UiConfiguration>> uiConfiguration() {return Mono.just(new ResponseEntity<>(Optional.ofNullable(uiConfiguration).orElse(UiConfigurationBuilder.builder().build()), HttpStatus.OK));}@GetMapping("/swagger-resources")public Mono<ResponseEntity> swaggerResources() {return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));}// @GetMapping("/")public Mono<ResponseEntity> swaggerResourcesN() {return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));}//@GetMapping("/csrf")public Mono<ResponseEntity> swaggerResourcesCsrf() {return Mono.just((new ResponseEntity<>(swaggerResources.get(), HttpStatus.OK)));}
}