Impossible de se connecter au serveur Eureka. Exception: Java.net.ConnectException: connexion refusée: Connect
Je faisais du tutoriel de Microservices de Javabrains.io et tout était correct jusqu'à ce que j'essaye d'implémenter Eureka Server dans l'une des microservices.
Ma classe principale est simple:
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer;
@SpringBootApplication
@EnableEurekaServer
public class DiscoveryServerApplication {
public static void main(String[] args) {
SpringApplication.run(DiscoveryServerApplication.class, args);
}
}
mon pom ressemble à ceci:
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.Apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.Apache.org/POM/4.0.0 http://maven.Apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.4.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>pl.Grzesiek</groupId>
<artifactId>discovery-server</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>discovery-server</name>
<description>Demo project for Spring Boot</description>
<dependencies>
<dependency>
<!-- Setup Spring Boot -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<!-- Setup Spring MVC & REST, use Embedded Tomcat -->
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<!-- Spring Cloud starter -->
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-eureka-server</artifactId>
<version>1.4.6.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.xml.bind</groupId>
<artifactId>jaxb-api</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.Sun.xml.bind</groupId>
<artifactId>jaxb-core</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>com.Sun.xml.bind</groupId>
<artifactId>jaxb-impl</artifactId>
<version>2.2.11</version>
</dependency>
<dependency>
<groupId>javax.activation</groupId>
<artifactId>activation</artifactId>
<version>1.1.1</version>
</dependency>
</dependencies>
<!-- Spring Cloud dependencies -->
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Finchley.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
Après avoir exécuté l'application, j'ai eu une énorme note d'exception (je poste seulement le début):
2019-05-13 16:42:36.026 INFO 8704 --- [ main] o.s.core.annotation.AnnotationUtils : Failed to introspect annotations on class org.springframework.cloud.netflix.eureka.config.EurekaDiscoveryClientConfigServiceBootstrapConfiguration: Java.lang.IllegalStateException: Could not obtain annotation attribute value for public abstract Java.lang.Class[] org.springframework.boot.autoconfigure.condition.ConditionalOnClass.value()
2019-05-13 16:42:37.057 INFO 8704 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'configurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$99f95863] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v2.1.4.RELEASE)
2019-05-13 16:42:37.885 INFO 8704 --- [ main] p.G.d.DiscoveryServerApplication : No active profile set, falling back to default profiles: default
2019-05-13 16:42:39.885 WARN 8704 --- [ main] o.s.boot.actuate.endpoint.EndpointId : Endpoint ID 'service-registry' contains invalid characters, please migrate to a valid format.
2019-05-13 16:42:40.542 INFO 8704 --- [ main] o.s.cloud.context.scope.GenericScope : BeanFactory id=0a227739-edaa-382b-b6cd-a363789789b9
2019-05-13 16:42:40.776 INFO 8704 --- [ main] trationDelegate$BeanPostProcessorChecker : Bean 'org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration' of type [org.springframework.cloud.autoconfigure.ConfigurationPropertiesRebinderAutoConfiguration$$EnhancerBySpringCGLIB$$99f95863] is not eligible for getting processed by all BeanPostProcessors (for example: not eligible for auto-proxying)
2019-05-13 16:42:41.792 INFO 8704 --- [ main] o.s.b.w.embedded.Tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)
2019-05-13 16:42:41.854 INFO 8704 --- [ main] o.Apache.catalina.core.StandardService : Starting service [Tomcat]
2019-05-13 16:42:41.854 INFO 8704 --- [ main] org.Apache.catalina.core.StandardEngine : Starting Servlet engine: [Apache Tomcat/9.0.17]
2019-05-13 16:42:42.573 INFO 8704 --- [ main] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-05-13 16:42:42.573 INFO 8704 --- [ main] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 4656 ms
2019-05-13 16:42:42.917 WARN 8704 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-05-13 16:42:42.917 INFO 8704 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-05-13 16:42:43.057 INFO 8704 --- [ main] c.netflix.config.DynamicPropertyFactory : DynamicPropertyFactory is initialized with configuration sources: com.netflix.config.ConcurrentCompositeConfiguration@413bef78
2019-05-13 16:42:46.370 INFO 8704 --- [ main] c.s.j.s.i.a.WebApplicationImpl : Initiating Jersey application, version 'Jersey: 1.19.1 03/11/2016 02:08 PM'
2019-05-13 16:42:46.541 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2019-05-13 16:42:46.541 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.thoughtworks.xstream.core.util.Fields (file:/C:/Users/Grzegorz/.m2/repository/com/thoughtworks/xstream/xstream/1.4.10/xstream-1.4.10.jar) to field Java.util.TreeMap.comparator
WARNING: Please consider reporting this to the maintainers of com.thoughtworks.xstream.core.util.Fields
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
2019-05-13 16:42:46.854 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2019-05-13 16:42:46.854 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2019-05-13 16:42:47.666 WARN 8704 --- [ main] o.s.c.n.a.ArchaiusAutoConfiguration : No spring.application.name found, defaulting to 'application'
2019-05-13 16:42:47.666 WARN 8704 --- [ main] c.n.c.sources.URLConfigurationSource : No URLs will be polled as dynamic configuration sources.
2019-05-13 16:42:47.666 INFO 8704 --- [ main] c.n.c.sources.URLConfigurationSource : To enable URLs as dynamic configuration sources, define System property archaius.configurationSource.additionalUrls or make config.properties available on classpath.
2019-05-13 16:42:47.995 INFO 8704 --- [ main] o.s.s.concurrent.ThreadPoolTaskExecutor : Initializing ExecutorService 'applicationTaskExecutor'
2019-05-13 16:42:48.916 INFO 8704 --- [ main] o.s.c.n.eureka.InstanceInfoFactory : Setting initial instance status as: STARTING
2019-05-13 16:42:48.994 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Initializing Eureka in region us-east-1
2019-05-13 16:42:49.354 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON encoding codec LegacyJacksonJson
2019-05-13 16:42:49.354 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using JSON decoding codec LegacyJacksonJson
2019-05-13 16:42:49.354 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML encoding codec XStreamXml
2019-05-13 16:42:49.354 INFO 8704 --- [ main] c.n.d.provider.DiscoveryJerseyProvider : Using XML decoding codec XStreamXml
2019-05-13 16:42:49.604 INFO 8704 --- [ main] c.n.d.s.r.aws.ConfigClusterResolver : Resolving eureka endpoints via configuration
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Disable delta property : false
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Single vip registry refresh property : null
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Force full registry fetch : false
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Application is null : false
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Registered Applications size is zero : true
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Application version is -1: true
2019-05-13 16:42:49.948 INFO 8704 --- [ main] com.netflix.discovery.DiscoveryClient : Getting all instance registry info from the eureka server
2019-05-13 16:42:52.135 ERROR 8704 --- [ main] c.n.d.s.t.d.RedirectingEurekaHttpClient : Request execution error
com.Sun.jersey.api.client.ClientHandlerException: Java.net.ConnectException: Connection refused: connect
at com.Sun.jersey.client.Apache4.ApacheHttpClient4Handler.handle(ApacheHttpClient4Handler.Java:187) ~[jersey-Apache-client4-1.19.1.jar:1.19.1]
at com.Sun.jersey.api.client.filter.GZIPContentEncodingFilter.handle(GZIPContentEncodingFilter.Java:123) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.discovery.EurekaIdentityHeaderFilter.handle(EurekaIdentityHeaderFilter.Java:27) ~[eureka-client-1.9.2.jar:1.9.2]
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.get(WebResource.Java:509) ~[jersey-client-1.19.1.jar:1.19.1]
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplicationsInternal(AbstractJerseyEurekaHttpClient.Java:194) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.jersey.AbstractJerseyEurekaHttpClient.getApplications(AbstractJerseyEurekaHttpClient.Java:165) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.Java:137) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.MetricsCollectingEurekaHttpClient.execute(MetricsCollectingEurekaHttpClient.Java:73) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.Java:134) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.Java:137) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.executeOnNewServer(RedirectingEurekaHttpClient.Java:118) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RedirectingEurekaHttpClient.execute(RedirectingEurekaHttpClient.Java:79) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.Java:134) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.Java:137) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.RetryableEurekaHttpClient.execute(RetryableEurekaHttpClient.Java:120) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.Java:134) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.Java:137) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.Java:77) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.Java:134) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.Java:1051) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.Java:965) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.Java:414) ~[eureka-client-1.9.2.jar:1.9.2]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.Java:269) ~[eureka-client-1.9.2.jar:1.9.2]
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.Java:63) ~[spring-cloud-netflix-eureka-client-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.Java:269) ~[spring-cloud-netflix-eureka-client-2.0.0.RELEASE.jar:2.0.0.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$a1625182.CGLIB$eurekaClient$0(<generated>) ~[spring-cloud-netflix-eureka-client-2.0.0.RELEASE.jar:2.0.0.RELEASE]
Et c'est aller sur ...
Quelqu'un avait le même problème? Je n'ai aucune idée de ce qui pourrait être la raison.
une quelle est la raison ... quelqu'un avait le même problème?
Ajout de la propriété ci-dessous à l'application.Properties Fichier des clients a fonctionné (sans ajouter la propriété de défaut):
eureka.instance.hostname=localhost
Il semble que les clients Eureka n'étaient pas en mesure d'identifier le nom d'hôte du serveur Eureka par défaut, et il doit donc être configuré manuellement.
Supprimer:
<dependency>
<!-- Spring Cloud starter -->
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter</artifactId>
</dependency>
Avec spring-cloud-starter-eureka-server suffit, mais supprimez également la version 1.4.6.Release, contrôlée par le dependencyManagement.