初次连接注册远程NACOS 异常读取超时

2022-02-28 11:36:56.007  INFO 14540 --- [           main] com.lsy.NacosConfigApplication           : Starting NacosConfigApplication using Java 1.8.0_161 on Hibernation with PID 14540 (F:Y2exploit开发Filecloud-alibabauser-providertargetclasses started by Administrator in F:Y2exploit开发Filecloud-alibaba)
2022-02-28 11:36:56.009  INFO 14540 --- [           main] com.lsy.NacosConfigApplication           : No active profile set, falling back to default profiles: default
2022-02-28 11:36:56.451  INFO 14540 --- [           main] o.s.cloud.context.scope.GenericScope     : BeanFactory id=10589ff3-e7dd-3c10-aaf0-101ed07dd3ea
2022-02-28 11:36:56.627  INFO 14540 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 9001 (http)
2022-02-28 11:36:56.633  INFO 14540 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2022-02-28 11:36:56.634  INFO 14540 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.41]
2022-02-28 11:36:56.736  INFO 14540 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2022-02-28 11:36:56.737  INFO 14540 --- [           main] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 701 ms
2022-02-28 11:36:56.865  INFO 14540 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2022-02-28 11:36:58.709  INFO 14540 --- [           main] o.s.cloud.commons.util.InetUtils         : Cannot determine local hostname
2022-02-28 11:36:58.714  INFO 14540 --- [           main] o.s.s.c.ThreadPoolTaskScheduler          : Initializing ExecutorService 'Nacos-Watch-Task-Scheduler'
2022-02-28 11:37:00.832  INFO 14540 --- [           main] o.s.cloud.commons.util.InetUtils         : Cannot determine local hostname
2022-02-28 11:39:31.018  INFO 14540 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat started on port(s): 9001 (http) with context path ''
2022-02-28 11:42:01.037 ERROR 14540 --- [           main] c.a.c.n.registry.NacosServiceRegistry    : nacos registry, user-provider register failed...NacosRegistration{nacosDiscoveryProperties=NacosDiscoveryProperties{serverAddr='localhost:8848', endpoint='', namespace='', watchDelay=30000, logName='', service='user-provider', weight=1.0, clusterName='DEFAULT', group='DEFAULT_GROUP', namingLoadCacheAtStart='false', metadata={preserved.register.source=SPRING_CLOUD}, registerEnabled=true, ip='192.168.244.1', networkInterface='', port=9001, secure=false, accessKey='', secretKey='', heartBeatInterval=null, heartBeatTimeout=null, ipDeleteTimeout=null}},

com.alibaba.nacos.api.exception.NacosException: failed to req API:/nacos/v1/ns/instance after all servers([localhost:8848]) tried: java.net.SocketTimeoutException: Read timed out
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:556) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:498) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqApi(NamingProxy.java:493) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.registerService(NamingProxy.java:246) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.nacos.client.naming.NacosNamingService.registerInstance(NacosNamingService.java:212) ~[nacos-client-1.4.1.jar:na]
	at com.alibaba.cloud.nacos.registry.NacosServiceRegistry.register(NacosServiceRegistry.java:74) ~[spring-cloud-starter-alibaba-nacos-discovery-2021.1.jar:2021.1]
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.register(AbstractAutoServiceRegistration.java:232) [spring-cloud-commons-3.0.1.jar:3.0.1]
	at com.alibaba.cloud.nacos.registry.NacosAutoServiceRegistration.register(NacosAutoServiceRegistration.java:78) [spring-cloud-starter-alibaba-nacos-discovery-2021.1.jar:2021.1]
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.start(AbstractAutoServiceRegistration.java:133) [spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.bind(AbstractAutoServiceRegistration.java:98) [spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:86) [spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.cloud.client.serviceregistry.AbstractAutoServiceRegistration.onApplicationEvent(AbstractAutoServiceRegistration.java:47) [spring-cloud-commons-3.0.1.jar:3.0.1]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:426) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:383) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.boot.web.servlet.context.WebServerStartStopLifecycle.start(WebServerStartStopLifecycle.java:46) [spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.context.support.DefaultLifecycleProcessor.doStart(DefaultLifecycleProcessor.java:178) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.DefaultLifecycleProcessor.access$200(DefaultLifecycleProcessor.java:54) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.DefaultLifecycleProcessor$LifecycleGroup.start(DefaultLifecycleProcessor.java:356) [spring-context-5.3.3.jar:5.3.3]
	at java.lang.Iterable.forEach(Iterable.java:75) ~[na:1.8.0_161]
	at org.springframework.context.support.DefaultLifecycleProcessor.startBeans(DefaultLifecycleProcessor.java:155) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.DefaultLifecycleProcessor.onRefresh(DefaultLifecycleProcessor.java:123) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:940) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:591) [spring-context-5.3.3.jar:5.3.3]
	at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:144) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2]
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2]
	at com.lsy.NacosConfigApplication.main(NacosConfigApplication.java:14) ~[classes/:na]

总结一下报错的几种原因：

server:
  port: 9001

spring:
  application:
    name: user-provider
  cloud:
    nacos:
      config:
        server-addr: ip:8848
      discovery:
        server-addr: ip:8848

解决方法很简单，首先在pom.xml中导入包

 代码：

    
        com.alibaba.cloud
        spring-cloud-starter-alibaba-nacos-discovery

最后希望也能解决你的问题。