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使用Spring Cloud更改Eureka服务器的默认端口

javaspringspring-bootspring-cloudspring-cloud-netflix
9

我需要翻译的内容是：我有一个Spring Boot应用程序，其中包括一个Eureka服务器和一个Eureka客户端。

以下是我的服务器配置：

server:
  port: 8761

spring:
  application:
    name: eureka-server

这是我的服务器代码。
package fr.maif.eurekaserver;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

@SpringBootApplication
@EnableEurekaServer
@EnableZuulProxy
public class EurekaServerApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaServerApplication.class, args);
    }
}

这是客户端配置

spring:
  application:
    name: eureka-client
server:
  port: 8083
eureka:
  client:
    serviceUrl:
      defaultZone: "http://localhost:8761/eureka"

这是我的客户端代码。
package fr.maif.eurekaclient;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;

@SpringBootApplication
@EnableDiscoveryClient
public class EurekaClientApplication {

    public static void main(String[] args) {
        SpringApplication.run(EurekaClientApplication.class, args);
    }
}

当服务器端口仍为8761时，上述操作完美运行。但是，当我尝试更改它（更改为8080或任何其他值）并在服务器端口和客户端defaultZone配置中进行更改时，服务器将不断抛出ConnectExceptions异常。

2017-08-10 15:54:31.424 ERROR 22219 --- [get_localhost-4] c.n.e.cluster.ReplicationTaskProcessor   : Network level connection to peer localhost; retrying after delay

com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused (Connection refused)
    at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:187) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
    at com.netflix.eureka.cluster.DynamicGZIPContentEncodingFilter.handle(DynamicGZIPContentEncodingFilter.java:48) ~[eureka-core-1.6.2.jar:1.6.2]
    at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.java:27) ~[eureka-client-1.6.2.jar:1.6.2]
    at com.sun.jersey.api.client.Client.handle(Client.java:652) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.sun.jersey.api.client.WebResource.handle(WebResource.java:682) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.sun.jersey.api.client.WebResource.access$200(WebResource.java:74) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.sun.jersey.api.client.WebResource$Builder.post(WebResource.java:570) ~[jersey-client-1.19.1.jar:1.19.1]
    at com.netflix.eureka.transport.JerseyReplicationClient.submitBatchUpdates(JerseyReplicationClient.java:116) ~[eureka-core-1.6.2.jar:1.6.2]
    at com.netflix.eureka.cluster.ReplicationTaskProcessor.process(ReplicationTaskProcessor.java:71) ~[eureka-core-1.6.2.jar:1.6.2]
    at com.netflix.eureka.util.batcher.TaskExecutors$BatchWorkerRunnable.run(TaskExecutors.java:187) [eureka-core-1.6.2.jar:1.6.2]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_131]
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) ~[na:1.8.0_131]
    at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) ~[na:1.8.0_131]
    at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) ~[na:1.8.0_131]
    at java.net.Socket.connect(Socket.java:589) ~[na:1.8.0_131]
    at org.apache.http.conn.scheme.PlainSocketFactory.connectSocket(PlainSocketFactory.java:121) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:180) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:144) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:134) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:610) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:445) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.client.AbstractHttpClient.doExecute(AbstractHttpClient.java:835) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:118) ~[httpclient-4.5.3.jar:4.5.3]
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:56) ~[httpclient-4.5.3.jar:4.5.3]
    at com.sun.jersey.client.apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.java:173) ~[jersey-apache-client4-1.19.1.jar:1.19.1]
    ... 10 common frames omitted

我做错了什么？
1
当您使用浏览器访问新端口的Eureka时会发生什么？例如：localhost:8080/ - alayor
你的评论帮助我解决了问题：我有Eureka IHM，但只有Eureka客户端出现在注册应用程序中（没有服务器）。我在我的服务器配置中添加了eureka.client.serviceUrl.defaultZone: "http://localhost:8080/eureka"，然后它就可以工作了！非常感谢你。 - Robert jardonneau
4个回答
24

尝试以下配置：

  1. 服务器。
    server:
      port: 8080
    eureka:
      instance:
      hostname: localhost
      client:
        registerWithEureka: false
        fetchRegistry: false
          serviceUrl:
            defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/
  1. 客户。
    spring:
      application:
      name: eureka-client
    server:
      port: 8083
    eureka:
      client:
      registerWithEureka: true
      fetchRegistry: true
      serviceUrl:
        defaultZone: http://localhost:8080/eureka/
1
是的，正如之前的评论所述，服务器配置确实缺少eureka.client.serviceUrl.defaultZone。感谢您的帮助 =) - Robert jardonneau
我也可以。 - Adit choudhary
我认为我们不需要在服务器中提供defaultZone。我只是在服务器的application.properties文件中更改为server.port=3939，并在每个客户端以及ApiGateway的application.properties文件中配置了eureka.client.serviceUrl.defaultZone，端口与服务器提供的相同，即3939。这对我有用！ - Superman
0

您只需要在服务器应用的application.yml文件中添加eureka.client.service-url.defaultZone=http://localhost:8080/eureka，同时在两个文件中去掉URL周围的引号。

去掉URL周围的引号（别忘了）

0

是的，根据Shchipunov的评论，下面的属性完成了工作 1-eureka.instance.hostname=localhost（eureka服务器） 2-eureka.client.serviceUrl.defaultZone（客户端项目）

0

以下更改对我来说很好用。

spring.application.name=netflix-eureka-naming-server 
# Eureka default port
#server.port=8761   
server.port=8762
eureka.instance.hostname=localhost
eureka.client.register-with-eureka=false
eureka.client.fetch-registry=false
eureka.client.service-Url.defaultZone=http://${eureka.instance.hostname}:${server.port}/eureka/
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