Nacos工程启动报错java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried

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所属分类：Nacos

一个很简单的nacos工程，虽然启动时报错，但可以正常注册到nacos注册中心，所以一开始没怎么管它，但是作为有强迫症的人来说怎么能接受有错呢。。

2019-07-12 14:14:32.125 ERROR 13252 --- [ main] o.s.c.a.n.registry.NacosServiceRegistry : nacos registry, gateway register failed...NacosRegistration{nacosDiscoveryProperties=NacosDiscoveryProperties{serverAddr='127.0.0.1:8848', endpoint='', namespace='', logName='', service='gateway', weight=1.0, clusterName='DEFAULT', metadata={}, registerEnabled=true, ip='192.168.129.1', networkInterface='', port=8073, secure=false, accessKey='', secretKey=''}},

java.lang.IllegalStateException: failed to req API:/nacos/v1/ns/instance after all servers([127.0.0.1:8848]) tried
at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:339) ~[nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:272) ~[nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:171) ~[nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:161) ~[nacos-client-0.3.0.jar:na]
at org.springframework.cloud.alibaba.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:58) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.alibaba.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:31) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:211) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.cloud.alibaba.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:75) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:110) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:74) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:262) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:180) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:142) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:358) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.finishRefresh(ReactiveWebServerApplicationContext.java:124) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:554) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:67) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at com.zp.gateway.GatewayApplication.main(GatewayApplication.java:12) [classes/:na]

2019-07-12 14:14:32.136 INFO 13252 --- [ main] com.zp.gateway.GatewayApplication : Started GatewayApplication in 6.892 seconds (JVM running for 7.466)

于是今天抽时间研究了下，这个错误在网上基本上搜不到什么有用的信息，倒是网上有一篇帖子提醒我，不止控制台有log，启动时也往日志文件里写了log，于是在C:\Users\Administrator\logs\nacos路径下打开log文件才发现真正的错误信息是

01 2019-07-12 14:10:34.371 ERROR [main :c.a.n.c.naming] [] [] [NA] req api:/nacos/v1/ns/instance failed, server(127.0.0.1:8848
com.alibaba.nacos.api.exception.NacosException: null
at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:308) [nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:331) [nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:272) [nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:171) [nacos-client-0.3.0.jar:na]
at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:161) [nacos-client-0.3.0.jar:na]
at org.springframework.cloud.alibaba.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:58) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.alibaba.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:31) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:211) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.cloud.alibaba.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:75) [spring-cloud-alibaba-nacos-discovery-0.2.0.RELEASE.jar:0.2.0.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:110) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:74) [spring-cloud-commons-2.0.4.RELEASE.jar:2.0.4.RELEASE]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:262) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:180) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:142) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:404) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:358) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.finishRefresh(ReactiveWebServerApplicationContext.java:124) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:554) [spring-context-5.0.13.RELEASE.jar:5.0.13.RELEASE]
at org.springframework.boot.web.reactive.context.ReactiveWebServerApplicationContext.refresh(ReactiveWebServerApplicationContext.java:67) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:754) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1242) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1230) [spring-boot-2.0.9.RELEASE.jar:2.0.9.RELEASE]
at com.zp.gateway.GatewayApplication.main(GatewayApplication.java:12) [classes/:na]