目录
1.报错信息如下
2.由于每个dubbo应用注册的时候都当做一个qos-server ，有一个固定的端口号，默认是22222，
不同应用需要设置不同的端口号
3.在application.yml，或者在application.properties指定就好了（修改qosPort参数）。
4.重新启动项目，报错就即可消失
1.报错信息如下
org.apache.dubbo.qos.server.QosBindException: qos-server can not bind localhost:22222
at org.apache.dubbo.qos.server.Server.start(Server.java:126)
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.startQosServer(QosProtocolWrapper.java:134)
at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:78)
at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:77)
at org.apache.dubbo.rpc.protocol.ProtocolSecurityWrapper.export(ProtocolSecurityWrapper.java:84)
at org.apache.dubbo.rpc.cluster.filter.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:61)
at org.apache.dubbo.rpc.protocol.ProtocolSerializationWrapper.export(ProtocolSerializationWrapper.java:50)
at org.apache.dubbo.rpc.protocol.InvokerCountWrapper.export(InvokerCountWrapper.java:42)
at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
at org.apache.dubbo.config.ServiceConfig.doExportUrl(ServiceConfig.java:947)
at org.apache.dubbo.config.ServiceConfig.exportLocal(ServiceConfig.java:964)
at org.apache.dubbo.config.ServiceConfig.exportUrl(ServiceConfig.java:840)
at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:602)
at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:583)
at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:540)
at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:340)
at org.apache.dubbo.config.ServiceConfigBase.export(ServiceConfigBase.java:422)
at org.apache.dubbo.config.metadata.ConfigurableMetadataServiceExporter.export(ConfigurableMetadataServiceExporter.java:76)
at org.apache.dubbo.config.metadata.ExporterDeployListener.onModuleStarted(ExporterDeployListener.java:85)
at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.exportMetadataService(DefaultApplicationDeployer.java:1266)
at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.prepareApplicationInstance(DefaultApplicationDeployer.java:767)
at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.checkState(DefaultApplicationDeployer.java:1152)
at org.apache.dubbo.config.deploy.DefaultApplicationDeployer.notifyModuleChanged(DefaultApplicationDeployer.java:1140)
at org.apache.dubbo.config.deploy.DefaultModuleDeployer.onModuleStarted(DefaultModuleDeployer.java:363)
at org.apache.dubbo.config.deploy.DefaultModuleDeployer.startSync(DefaultModuleDeployer.java:188)
at org.apache.dubbo.config.deploy.DefaultModuleDeployer.start(DefaultModuleDeployer.java:156)
at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onContextRefreshedEvent(DubboDeployApplicationListener.java:157)
at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:143)
at org.apache.dubbo.config.spring.context.DubboDeployApplicationListener.onApplicationEvent(DubboDeployApplicationListener.java:52)
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:404)
at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:361)
at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:898)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:554)
at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:143)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758)
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750)
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:397)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:315)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1237)
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
at com.company.project.CompanyProjectApplication.main(CompanyProjectApplication.java:30)
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method)
at sun.nio.ch.Net.bind(Net.java:433)
at sun.nio.ch.Net.bind(Net.java:425)
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
at io.netty.channel.socket.nio.NioServerSocketChannel.doBind(NioServerSocketChannel.java:134)
at io.netty.channel.AbstractChannel$AbstractUnsafe.bind(AbstractChannel.java:550)
at io.netty.channel.DefaultChannelPipeline$HeadContext.bind(DefaultChannelPipeline.java:1334)
at io.netty.channel.AbstractChannelHandlerContext.invokeBind(AbstractChannelHandlerContext.java:506)
at io.netty.channel.AbstractChannelHandlerContext.bind(AbstractChannelHandlerContext.java:491)
at io.netty.channel.DefaultChannelPipeline.bind(DefaultChannelPipeline.java:973)
at io.netty.channel.AbstractChannel.bind(AbstractChannel.java:248)
at io.netty.bootstrap.AbstractBootstrap$2.run(AbstractBootstrap.java:356)
at io.netty.util.concurrent.AbstractEventExecutor.safeExecute(AbstractEventExecutor.java:164)
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks(SingleThreadEventExecutor.java:472)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:500)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)2.由于每个dubbo应用注册的时候都当做一个qos-server ，有一个固定的端口号，默认是22222，
不同应用需要设置不同的端口号
3.在application.yml，或者在application.properties指定就好了（修改qosPort参数）。
dubbo:
application:
#每个服务不一样，得设置不同的端口
qosPort: 33333
name: dubbo-manager
registry:
address: nacos://0.0.0.0:88494.重新启动项目，报错就即可消失
