在使用Zookeeper以及Consul的时候，@LoadBalanced注解无效，无法通过服务名获取注册中心的URL的问题记录

其他 2021-03-09 09:39:09 阅读次数: 0

文章目录

太惨了我，这个问题我至少郁闷了四五天，在搞服务注册中心的时候，我第一个看的是Eureka，当时也是类似的错误，我稀里糊涂解决了以后，却又死在了Zookeeper和Consul上，要不是见哥，我真都快放弃这个问题了，呜呜呜，全网感谢见哥。

1、问题描述

在练习Zookeeper和Consul分别作为服务注册中心的时候，给我莫名其妙报了这个错误。

2021-02-04 12:27:37.269 ERROR 9112 --- [nio-8002-exec-3] o.a.c.c.C.[.[.[/].[dispatcherServlet]    : Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://cloudPaymentService/payment/get/1": Network is unreachable: connect; nested exception is java.net.SocketException: Network is unreachable: connect] with root cause

java.net.SocketException: Network is unreachable: connect
	at java.net.DualStackPlainSocketImpl.connect0(Native Method) ~[na:1.8.0_261]
	at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:75) ~[na:1.8.0_261]
	at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:476) ~[na:1.8.0_261]
	at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:218) ~[na:1.8.0_261]
	at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:200) ~[na:1.8.0_261]
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:162) ~[na:1.8.0_261]
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:394) ~[na:1.8.0_261]
	at java.net.Socket.connect(Socket.java:606) ~[na:1.8.0_261]
	at java.net.Socket.connect(Socket.java:555) ~[na:1.8.0_261]
	at sun.net.NetworkClient.doConnect(NetworkClient.java:180) ~[na:1.8.0_261]
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) ~[na:1.8.0_261]
	at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) ~[na:1.8.0_261]
	at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) ~[na:1.8.0_261]
	at sun.net.www.http.HttpClient.New(HttpClient.java:339) ~[na:1.8.0_261]
	at sun.net.www.http.HttpClient.New(HttpClient.java:357) ~[na:1.8.0_261]
	at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1226) ~[na:1.8.0_261]
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162) ~[na:1.8.0_261]
	at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056) ~[na:1.8.0_261]
	at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:990) ~[na:1.8.0_261]
	at org.springframework.http.client.SimpleBufferingClientHttpRequest.executeInternal(SimpleBufferingClientHttpRequest.java:76) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:66) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:109) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.cloud.client.loadbalancer.LoadBalancerRequestFactory.lambda$createRequest$0(LoadBalancerRequestFactory.java:58) ~[spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.cloud.client.loadbalancer.LoadBalancerRequestAdapter.apply(LoadBalancerRequestAdapter.java:43) ~[spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.cloud.loadbalancer.blocking.client.BlockingLoadBalancerClient.execute(BlockingLoadBalancerClient.java:99) ~[spring-cloud-loadbalancer-3.0.1.jar:3.0.1]
	at org.springframework.cloud.loadbalancer.blocking.client.BlockingLoadBalancerClient.execute(BlockingLoadBalancerClient.java:84) ~[spring-cloud-loadbalancer-3.0.1.jar:3.0.1]
	at org.springframework.cloud.client.loadbalancer.LoadBalancerInterceptor.intercept(LoadBalancerInterceptor.java:56) ~[spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.http.client.InterceptingClientHttpRequest$InterceptingRequestExecution.execute(InterceptingClientHttpRequest.java:93) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.InterceptingClientHttpRequest.executeInternal(InterceptingClientHttpRequest.java:77) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.AbstractBufferingClientHttpRequest.executeInternal(AbstractBufferingClientHttpRequest.java:48) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.http.client.AbstractClientHttpRequest.execute(AbstractClientHttpRequest.java:66) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:775) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:710) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.client.RestTemplate.getForObject(RestTemplate.java:333) ~[spring-web-5.3.3.jar:5.3.3]
	at com.phz.controller.OrderController.getPaymentById(OrderController.java:37) ~[classes/:na]
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_261]
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_261]
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_261]
	at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_261]
	at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:197) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:141) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:106) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:894) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1060) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:962) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:626) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
	at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.3.3.jar:5.3.3]
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) ~[tomcat-embed-core-9.0.41.jar:4.0.FR]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.boot.actuate.metrics.web.servlet.WebMvcMetricsFilter.doFilterInternal(WebMvcMetricsFilter.java:93) ~[spring-boot-actuator-2.4.2.jar:2.4.2]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.3.3.jar:5.3.3]
	at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.3.3.jar:5.3.3]
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardContextValve.__invoke(StandardContextValve.java:97) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:41002) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:888) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1597) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_261]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_261]
	at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-9.0.41.jar:9.0.41]
	at java.lang.Thread.run(Thread.java:748) [na:1.8.0_261]

也就是说，我无法通过服务名获取注册中心对应服务的URL，这一过程应该交由@LoadBalanced注解帮我完成，但是我的配置，我的代码检测了无数遍的情况下，始终解决不了这个问题，到底是哪个环节出现了问题？

2、问题猜想

我了解到，我在使用Eureka的时候也遇到了这个一模一样的问题，但是我稀里糊涂解决了后就没在意，现在又出现了，而Eureka是用的Ribbon做的负载均衡，然后我就查，发现新版的cloud把Netflix的所有组件全部移除了，只留下一个Eureka，而据我查证，H版Cloud的Eureka starter自带Ribbon，而I版的给移除了。

image-20210208203747786

image-20210208204050515

我立马怀疑是不是我太激进了，搞不好这应该是版本差异带来的问题，这种太新的版本不适合我这种小白来踩坑，坑位都是留给那些大佬来踩的，所以我果断又退回了H版本，再次测试，果然，毫无疑问，问题还是没解决。。

3、如何解决的

我还真解决不了，但是当我求助到见哥的时候，见哥真给我解决了。

image-20210208204708644

帮我排查的具体过程就忽略了吧，加上后我才后知后觉，肯定是因为我的服务在注册中心注册上了，但是服务的Address没有配置，是个空！所以需要配置服务的实际IP才对，想到这儿，我终于知道我当初为什么要在Eureka配置优先以IP为标识了！
在使用Eureka的时候，@LoadBalanced注解无效，无法通过服务名获取注册中心服务的URL的问题记录

贴出没有配置host的服务节点信息

image-20210209114336366

后知后觉，空的怎么可能访问的到！

image-20210209114420752

当我配置了host后

image-20210209114549815

image-20210209114615968

image-20210208205158965

discovery:
 enabled: true
 #这是本机IP
 instance-host: 192.168.1.6

再次测试，通了！同样的方法，我在Consul配置文件也加上了这个参数，也通了！

image-20210209114908616

过程很心酸，但是收获也很大！

猜你喜欢

转载自blog.csdn.net/qq_43509535/article/details/113762372
今日推荐
《美国对全球网络空间安全与发展的威胁和破坏》报告发布
火速冲上 GitHub 热榜 —— 开源编程语言、框架哪有这么可爱？
北京人形机器人创新中心发布全球首个纯电驱拟人奔跑的全尺寸人形机器人“天工”
LFOSSA 源来如此公开课 | 掌握云原生未来：CNCF 认证全面攻略与备考秘籍
周排行
循环神经网络（rnn）讲解
Tigao教程四：单独的关节运动
金蝶K3WISE15.0-注册套打教程
如何在Mac上配置Kubernetes
Android应用结束自身进程的方法
SpringMVC学习 十三 拦截器栈
中国驻洛杉矶总领馆举行新春招待会
HttpClient get post 发送
11 - three.js 笔记 - 绘制三维字体模型
Mysql递归获取某个父节点下面的所有子节点和子节点上的所有父节点
每日归档
更多
2024-05-01(4)
2024-04-30(1)
2024-04-29(40)
2024-04-28(0)
2024-04-27(56)
2024-04-26(39)
2024-04-25(22)
2024-04-24(36)
2024-04-23(26)
2024-04-22(39)

代码天地 © 2018 codetd.com

境外服务器   最新电视剧2022