Spring微服务实例未向运行在8761以外端口的Eureka注册

Question

我的微服务的application.yml（客户端到Eureka）

spring:
  application:
    name: queue1

eureka:
  client:
    registerWithEureka: true
    fetchRegistry: true  
    serviceUrl:
      defaultZone: http://localhost:8762/

server:
  port: 7777

app:
  id: ${random.uuid}

Eureka的application.yml

eureka:
  instance:
    hostname: peer1
  client:
    register-with-eureka: false
    fetch-registry: false
server:
  port: 8762

我在端口8762启动Eureka并在我的微服务中引用它。微服务未能在尤里卡注册。以下是微服务日志的例外情况。

2019-03-21 17:02:16.248 ERROR 1804 --- [freshExecutor-0] com.netflix.discovery.DiscoveryClient    : DiscoveryClient_ZUUL_RIBBON/ICB8061.ibsplc.com:zuul_ribbon:8080 - was unable to refresh its cache! status = Cannot execute request on any known server

com.netflix.discovery.shared.transport.TransportException: Cannot execute request on any known server
    at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:112) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1051) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:965) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient.refreshRegistry(DiscoveryClient.java:1479) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient$CacheRefreshThread.run(DiscoveryClient.java:1446) [eureka-client-1.9.8.jar:1.9.8]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_202]
    at java.lang.Thread.run(Unknown Source) [na:1.8.0_202]



2019-03-21 17:02:16.278 ERROR 1804 --- [tbeatExecutor-0] c.n.d.s.t.d.RedirectingEurekaHttpClient  : Request execution error. endpoint=DefaultEndpoint{ serviceUrl='http://localhost:8762/}

javax.ws.rs.WebApplicationException: com.fasterxml.jackson.databind.exc.MismatchedInputException: Root name 'timestamp' does not match expected ('instance') for type [simple type, class com.netflix.appinfo.InstanceInfo]
 at [Source: (com.sun.jersey.client.apache4.ApacheHttpClient4Handler$HttpClientResponseInputStream); line: 1, column: 2]
    at com.netflix.discovery.provider.DiscoveryJerseyProvider.readFrom(DiscoveryJerseyProvider.java:110) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:634) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.sun.jersey.api.client.ClientResponse.getEntity(ClientResponse.java:586) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.sendHeartBeat(AbstractJerseyEurekaHttpClient.java:105) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$3.execute(EurekaHttpClientDecorator.java:92) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.java:73) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$3.execute(EurekaHttpClientDecorator.java:92) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.java:89) ~[eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$3.execute(EurekaHttpClientDecorator.java:92) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.java:120) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$3.execute(EurekaHttpClientDecorator.java:92) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.sendHeartBeat(EurekaHttpClientDecorator.java:89) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient.renew(DiscoveryClient.java:846) [eureka-client-1.9.8.jar:1.9.8]
    at com.netflix.discovery.DiscoveryClient$HeartbeatThread.run(DiscoveryClient.java:1405) [eureka-client-1.9.8.jar:1.9.8]
    at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.FutureTask.run(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.8.0_202]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.8.0_202]
    at java.lang.Thread.run(Unknown Source) [na:1.8.0_202]

现在最重要的是，如果我把Eureka服务器端口和微服务的Eureka注册端口改成8761的话，一切都很好！！！！微服务的注册正在进行。

在发布问题之前多次这样做，它的行为是这样的。

这里的任何投入都将非常有帮助。

Answer 1

我也遇到了同样的问题，这是由于Eureka服务器项目中的Spring Security依赖。将@enableWebSecurity代码添加到为我修复的eureka服务器应用程序之后。

    @EnableWebSecurity
   static class WebSecurityConfig extends WebSecurityConfigurerAdapter {
        @Override
        protected void configure(HttpSecurity http) throws Exception {
            http.csrf().disable();
        }
    }

Spring Boot Verison-2.3.2发布Spring Cloud版本-hoxton.sr1 https://github.com/spring-cloud/spring-cloud-netflix/issues/2754#issuecomment-372808529