failed to req API:127.0.0.1:8848/nacos/v1/ns/instance.

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uu 剑童 2020-06-18 11:49

一、该问题的重现步骤是什么？

1. 注册中心的地址进行修改

2. 报错 failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: 拒绝连接 (Connection refused)

二、你期待的结果是什么？实际看到的又是什么？

接口可以启动成功，报错 failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: 拒绝连接 (Connection refused)

三、你正在使用的是什么产品，什么版本？在什么操作系统上？

四、请提供详细的错误堆栈信息，这很重要。

2020-06-18 10:35:00.801 INFO 25635 --- [ main] o.s.i.channel.PublishSubscribeChannel : Channel 'blade-swan-1.errorChannel' has 1 subscriber(s).

2020-06-18 10:35:00.801 INFO 25635 --- [ main] o.s.i.endpoint.EventDrivenConsumer : started _org.springframework.integration.errorLogger

2020-06-18 10:35:00.805 INFO 25635 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Context refreshed

2020-06-18 10:35:00.843 INFO 25635 --- [ main] d.s.w.p.DocumentationPluginsBootstrapper : Found 1 custom documentation plugin(s)

2020-06-18 10:35:00.895 INFO 25635 --- [ main] s.d.s.w.s.ApiListingReferenceScanner : Scanning for api listing references

2020-06-18 10:35:01.325 INFO 25635 --- [ main] io.undertow : starting server: Undertow - 2.0.29.Final

2020-06-18 10:35:01.342 INFO 25635 --- [ main] org.xnio : XNIO version 3.3.8.Final

2020-06-18 10:35:01.391 INFO 25635 --- [ main] org.xnio.nio : XNIO NIO Implementation Version 3.3.8.Final

2020-06-18 10:35:01.485 INFO 25635 --- [ main] o.s.b.w.e.u.UndertowServletWebServer : Undertow started on port(s) 8509 (http) with context path ''

2020-06-18 10:35:01.579 ERROR 25635 --- [ main] com.alibaba.nacos.client.naming : [NA] failed to request

java.net.ConnectException: 拒绝连接 (Connection refused)

at java.net.PlainSocketImpl.socketConnect(Native Method)

at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:606)

at sun.net.NetworkClient.doConnect(NetworkClient.java:175)

at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)

at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)

at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)

at sun.net.www.http.HttpClient.New(HttpClient.java:339)

at sun.net.www.http.HttpClient.New(HttpClient.java:357)

at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1226)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1162)

at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1056)

at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:990)

at sun.net.www.protocol.http.HttpURLConnection.getOutputStream0(HttpURLConnection.java:1340)

at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:1315)

at com.alibaba.nacos.client.naming.net.HttpClient.request(HttpClient.java:85)

at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:413)

at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:454)

at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:389)

at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:191)

at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:207)

at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:63)

at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:239)

at com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:75)

at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:138)

at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:101)

at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:88)

at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:47)

at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:172)

at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:165)

at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139)

at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:402)

at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:359)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.finishRefresh(ServletWebServerApplicationContext.java:165)

at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:552)

at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:141)

at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:744)

at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:391)

at org.springframework.boot.SpringApplication.run(SpringApplication.java:312)

at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:140)

at org.springblade.core.launch.BladeApplication.run(BladeApplication.java:49)

at com.example.swan.SwanApplication.main(SwanApplication.java:32)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48)

at org.springframework.boot.loader.Launcher.launch(Launcher.java:87)

at org.springframework.boot.loader.Launcher.launch(Launcher.java:51)

at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:52)

2020-06-18 10:35:01.580 ERROR 25635 --- [ main] com.alibaba.nacos.client.naming : request 127.0.0.1:8848 failed.

com.alibaba.nacos.api.exception.NacosException: failed to req API:127.0.0.1:8848/nacos/v1/ns/instance. code:500 msg: java.net.ConnectException: 拒绝连接 (Connection refused)

at com.alibaba.nacos.client.naming.net.NamingProxy.callServer(NamingProxy.java:427)