已解决：微服务报错Cannot execute request on any known server

时间：2024-11-12 08:27:38

一：问题、

报Cannot execute request on any known server 这个错：连接Eureka服务端地址不对。

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-1.9.3.jar:1.9.3]
	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$1.execute(EurekaHttpClientDecorator.java:59) ~[eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.register(EurekaHttpClientDecorator.java:56) ~[eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.DiscoveryClient.register(DiscoveryClient.java:829) ~[eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.InstanceInfoReplicator.run(InstanceInfoReplicator.java:121) [eureka-client-1.9.3.jar:1.9.3]
	at com.netflix.discovery.InstanceInfoReplicator$1.run(InstanceInfoReplicator.java:101) [eureka-client-1.9.3.jar:1.9.3]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_171]
	at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) [na:1.8.0_171]
	at java.util.concurrent.FutureTask.run(FutureTask.java) [na:1.8.0_171]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_171]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_171]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_171]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_171]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_171]
 
2018-09-03 21:12:02.126  WARN 5968 --- [nfoReplicator-0] c.n.discovery.InstanceInfoReplicator     : There was a problem with the instance info replicator
 
com.

二：处理方式、

* 1.更改.yml文件或者.properties文件配置
* 2.检查连接Eureka服务端URL
* 3.注销依赖以及清空下载的eureka依赖包
  • 1）更改.yml文件或者.properties文件配置即可：

下划线+下划线后面的小写字母等同于去掉下划线大写下划线后面的字母（驼峰原则）

//是否将自己注册到 Eureka-Server 中，默认的为 true   registerWithEureka等同于register_with_eureka
eureka.client.registerWithEureka=false   

//是否需要拉取服务信息，默认未true       fetchRegistry等同于 fetch-registry
eureka.client.fetchRegistry=false
  • 2）连接Eureka服务端URL不对：

如果访问地址是：http://127.0.0.1:8888/eureka/

// 则在Eureka服务发现应该配置为：
server.port: 8888
eureka.client.serviceUrl.defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
  • 3）注销依赖以及清空下载的eureka依赖包：
<dependency>
   <groupId>org.springframework.cloud</groupId>
   <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
   <version>2.1.1.RELEASE</version>
</dependency>

???? 作者：Teddy (公众号：鸡仓故事汇)
ok！到这里就大功告成，小编（Teddy）在这里先感谢大家的到来。
虽然不是太详细，小编已经很努力，给小编来个一键三连(点赞，关注，收藏)，小编会越来越努力。。。

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