当我在测试springcloud的时候出现的问题：

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$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_202]
	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) ~[na:1.8.0_202]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) ~[na:1.8.0_202]
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) ~[na:1.8.0_202]
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) ~[na:1.8.0_202]
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) ~[na:1.8.0_202]
	at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_202]

一开始我以为是springboot的版本和springcloud的版本产生了冲突的问题，上网查阅了相关资料之后才发现不是这个问题，

我这里产生这个原因是因为我启动了Nacos，我项目的其他模块都加入了Nacos，我当前的项目没有加入Nacos，所以idea后台才会提示没有获取到服务，这是因为我的当前模块没有在Nacos注册。
解决方式：

加上Nacos注册就可以了：
第一步：添加依赖

<!--服务注册-->
<dependency>
    <groupId>org.springframework.cloud</groupId>
    <artifactId>spring-cloud-starter-alibaba-nacos-discovery</artifactId>
</dependency>

第二步：在application.properties添加配置：

# nacos服务地址
spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

第三步：在启动类中添加注解

@EnableDiscoveryClient  //Nacos注册