Spring boot Spring Zuul重定向不适用于外部url

你能告诉我为什么mu Zuul重定向不起作用吗

应用程序属性

    spring.application.name=netflix-zuul-api-gateway-server

management.endpoints.web.exposure.include=*
management.endpoint.routes.enabled=true
management.endpoint.filters.enabled=true
server.port=8765

application.yml

   zuul:
  routes:
    google:
      path: /google/**
      url: https://www.google.com/
      stripPrefix: true

bootstrap.properties

    spring.application.name=netflix-zuul-api-gateway-server

management.endpoints.web.exposure.include=*
management.endpoint.routes.enabled=true
management.endpoint.filters.enabled=true
server.port=8765

NetflixZuulApiGatewayServerApplication

@SpringBootApplication
public class NetflixZuulApiGatewayServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(NetflixZuulApiGatewayServerApplication.class, args);
    }
    
    @Bean
    public Sampler defaultSampler(){
        return Sampler.ALWAYS_SAMPLE;
    }

左洛金滤波器

@Component
public class ZuulLoggingFilter extends ZuulFilter{

    private Logger logger = LoggerFactory.getLogger(this.getClass());

    @Override
    public boolean shouldFilter() {
        return true;
    }

    @Override
    public Object run() {
        HttpServletRequest request = 
                RequestContext.getCurrentContext().getRequest();
        logger.info("request -> {} request uri -> {}", 
                request, request.getRequestURI());
        return null;
    }

    @Override
    public String filterType() {
        return "pre";
    }

    @Override
    public int filterOrder() {
        return 1;
    }
}

版本：

<parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.1.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

获得404http://localhost:8765/google/try