一.父工程中引入了nacos依赖，而子工程没有使用nacos

  1.控制台会报

2021-11-12 11:09:22.748 ERROR 23040 --- [TaskScheduler-1] o.s.c.a.nacos.discovery.NacosWatch       : Error watching Nacos Service change

java.lang.IllegalArgumentException: no server available
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:354) ~[nacos-client-1.0.0.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:346) ~[nacos-client-1.0.0.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.reqAPI(NamingProxy.java:294) ~[nacos-client-1.0.0.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.getServiceList(NamingProxy.java:276) ~[nacos-client-1.0.0.jar:na]
	at com.alibaba.nacos.client.naming.net.NamingProxy.getServiceList(NamingProxy.java:252) ~[nacos-client-1.0.0.jar:na]
	at com.alibaba.nacos.client.naming.NacosNamingService.getServicesOfServer(NacosNamingService.java:525) ~[nacos-client-1.0.0.jar:na]
	at org.springframework.cloud.alibaba.nacos.discovery.NacosWatch.nacosServicesWatch(NacosWatch.java:127) ~[spring-cloud-alibaba-nacos-discovery-0.2.2.RELEASE.jar:0.2.2.RELEASE]
	at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) ~[spring-context-5.2.1.RELEASE.jar:5.2.1.RELEASE]
	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_201]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) ~[na:1.8.0_201]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_201]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) ~[na:1.8.0_201]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_201]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_201]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_201]

 2.解决方案

在配置文件application.yml或者application.properties中添加

spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

二.控制台一直输出nacos的Info日志文件(关于naming)

解决方案

#解决nacos一直在控制台输出信息

logging.level.com.alibaba.nacos.client.naming=error