Spring Cloud Eureka 客户端无法注册到Eureka服务端
异常信息Springboot 和 SpringCloud 版本信息<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><v...
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Eureka 客户端无法注册到服务端异常探险之旅
Springboot 和 SpringCloud 版本信息
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.0.6.RELEASE</version>
<relativePath/>
</parent>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Finchley.SR2</spring-cloud.version>
</properties>
服务端配置
spring:
application:
name: peer1
security:
user:
name: test
password: 123456
roles: USER
eureka:
instance:
hostname: peer1
prefer-ip-address: true
client:
# service-url:
# defaultZone: http://localhost:8761/ 如果关闭了eureka的自注册功能,此处的service地址 可以不填
register-with-eureka: false
fetch-registry: false
server:
port: 8761
客户端配置
spring:
application:
name: eureka-client
eureka:
client:
service-url:
defaultZone: http://test:123456@localhost:8761/
instance:
hostname: eureka-client
prefer-ip-address: true
server:
port: 9090
异常信息
2019-05-07 10:08:10.897 WARN 52911 --- [ main] c.n.d.s.t.d.RetryableEurekaHttpClient : Request execution failure with status code 404; retrying on another server if available
2019-05-07 10:08:10.902 ERROR 52911 --- [ main] com.netflix.discovery.DiscoveryClient : DiscoveryClient_EUREKA-CLIENT/192.168.71.128:eureka-client:9090 - 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-1.9.3.jar:1.9.3]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator$6.execute(EurekaHttpClientDecorator.java:137) ~[eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.shared.transport.decorator.SessionedEurekaHttpClient.execute(SessionedEurekaHttpClient.java:77) ~[eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.shared.transport.decorator.EurekaHttpClientDecorator.getApplications(EurekaHttpClientDecorator.java:134) ~[eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.DiscoveryClient.getAndStoreFullRegistry(DiscoveryClient.java:1051) [eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.DiscoveryClient.fetchRegistry(DiscoveryClient.java:965) [eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:414) [eureka-client-1.9.3.jar:1.9.3]
at com.netflix.discovery.DiscoveryClient.<init>(DiscoveryClient.java:269) [eureka-client-1.9.3.jar:1.9.3]
at org.springframework.cloud.netflix.eureka.CloudEurekaClient.<init>(CloudEurekaClient.java:63) [spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration.eurekaClient(EurekaClientAutoConfiguration.java:290) [spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$a9ac6620.CGLIB$eurekaClient$0(<generated>) [spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$a9ac6620$$FastClassBySpringCGLIB$$5945145a.invoke(<generated>) [spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:228) [spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:365) [spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.cloud.netflix.eureka.EurekaClientAutoConfiguration$RefreshableEurekaClientConfiguration$$EnhancerBySpringCGLIB$$a9ac6620.eurekaClient(<generated>) [spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:583) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1246) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1096) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:535) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$1(AbstractBeanFactory.java:353) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.cloud.context.scope.GenericScope$BeanLifecycleWrapper.getBean(GenericScope.java:390) ~[spring-cloud-context-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.context.scope.GenericScope.get(GenericScope.java:184) ~[spring-cloud-context-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:350) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) [spring-beans-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.aop.target.SimpleBeanTargetSource.getTarget(SimpleBeanTargetSource.java:35) ~[spring-aop-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getTargetObject(EurekaRegistration.java:167) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration.getEurekaClient(EurekaRegistration.java:156) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121]
at org.springframework.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:223) ~[spring-core-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.cloud.context.scope.GenericScope$LockedScopedProxyFactoryBean.invoke(GenericScope.java:494) ~[spring-cloud-context-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:185) ~[spring-aop-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:688) ~[spring-aop-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaRegistration$$EnhancerBySpringCGLIB$$c6ce3019.getEurekaClient(<generated>) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.maybeInitializeClient(EurekaServiceRegistry.java:57) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaServiceRegistry.register(EurekaServiceRegistry.java:39) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.cloud.netflix.eureka.serviceregistry.EurekaAutoServiceRegistration.start(EurekaAutoServiceRegistration.java:80) ~[spring-cloud-netflix-eureka-client-2.0.2.RELEASE.jar:2.0.2.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:182) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:53) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:360) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:158) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:122) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:161) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:551) ~[spring-context-5.0.10.RELEASE.jar:5.0.10.RELEASE]
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) ~[spring-boot-2.0.6.RELEASE.jar:2.0.6.RELEASE]
at com.example.client.EurekaClientApplication.main(EurekaClientApplication.java:12) ~[classes/:na]
促使我做出上述配置的原因:
- 之前看到的资料中和springCloud官方API中虽然没有提及到不带/eureka/上下文的链接,但是我自己在启动了Eureka服务端后发现不带eureka上下文的地址可以访问。反而带了eureka上下文的地址无法访问。所以我做出了上面的配置。
问题发现
- 通过Google和SpringCloud官方文档的提示,SpringCloud NetFlix Eureka在高版本后[
Finchley
]版本。自身开启了CSRF验证–如下图,如果客户端要注册到服务端,那服务端要把CSRF关闭或者参照 Eureka:扩展ClientFilter实现服务注册自定义过滤
- 但是在关闭了CSRF后依旧还是报这个错误,然后我意识到可能除了CSRF和标准验证以外还有什么东西我没有注意到。
- 继续Google直到找到 这篇文章 时我开始偷懒,直接把上面的配置复制到我的配置中去,然后对应的修改了客户端的服务地址。惊喜的发现居然注册上去了,然后我看着自己的配置和复制过来的配置,开始反思。
# 这是我自己的配置 spring: application: name: peer1 security: user: name: test password: 123456 roles: USER eureka: instance: hostname: peer1 prefer-ip-address: true client: register-with-eureka: false fetch-registry: false server: port: 8761 # 这是我从博文中复制下来的配置 server: port: 8761 eureka: instance: hostname: localhost client: register-with-eureka: false # 由于该应用为注册中心,所以设置为false,代表不向注册中心注册自己 fetch-registry: false # 由于注册中心的职责就是维护服务示例,它并不需要去检索服务,所以也设置为false service-url: defaultZone: http://user:123@${eureka.instance.hostname}:${server.port}/eureka/ spring: application: name: eureka-server security: basic: enabled: true # 开启安全配置,需要密码,必须放在 application.yml 中,不可以放在 bootstrap.yml 中。 user: name: user password: 123 # 配置了用户名和密码后,可以修改地址的访问风格为 curl 风格
3.1. 我的配置和博文中的配置没有什么本质上的区别,甚至我还开始膨胀的觉得我在eureka自注册这里比博主理解的多QAQ(不要脸了!!)
4. 然后我开始检查我客户端的配置spring: application: name: eureka-client eureka: client: service-url: defaultZone: http://test:123456@localhost:8761/eureka/ # 最后发现是这里的锅 instance: hostname: eureka-client prefer-ip-address: true server: port: 9090
- 虽然可以在浏览器中使用不带eureka上下文的链接访问eureka面板,但是在服务注册中还是要带着eureka上下文。
很重要 带着eureka上下文!!!!!!
带着上下文!!!!
上下文 !!!
写在最后面,如果异常有报错WebContextException
,请添加spring-boot-starter-web
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