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Caused by: com.alibaba.dubbo.remoting.RemotingException: Failed to bind NettyServer on /10.10.1.127:20551, cause: Failed to bind to: /0.0.0.0:20551
at com.alibaba.dubbo.remoting.transport.AbstractServer.<init>(AbstractServer.java:73) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.transport.netty.NettyServer.<init>(NettyServer.java:63) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.bind(NettyTransporter.java:33) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.Transporter$Adpative.bind(Transporter$Adpative.java) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.Transporters.bind(Transporters.java:48) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:41) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:63) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:329) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:308) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:258) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:55) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:56) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:153) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:107) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:53) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:54) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:489) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:285) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:246) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:145) ~[dubbo-2.8.4a.jar:2.8.4a]
at com.alibaba.dubbo.config.spring.AnnotationBean.postProcessAfterInitialization(AnnotationBean.java:202) ~[dubbo-2.8.4a.jar:2.8.4a]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:423) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1633) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-4.3.7.RELEASE.jar:4.3.7.RELEASE]
... 13 more
Caused by: java.net.BindException: Address already in use: bind
at sun.nio.ch.Net.bind0(Native Method) ~[?:1.8.0_91]
at sun.nio.ch.Net.bind(Net.java:433) ~[?:1.8.0_91]
at sun.nio.ch.Net.bind(Net.java:425) ~[?:1.8.0_91]
at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[?:1.8.0_91]
at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[?:1.8.0_91]
at org.jboss.netty.channel.socket.nio.NioServerBoss$RegisterTask.run(NioServerBoss.java:193) ~[netty-3.10.5.Final.jar:?]
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.processTaskQueue(AbstractNioSelector.java:391) ~[netty-3.10.5.Final.jar:?]
at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:315) ~[netty-3.10.5.Final.jar:?]
at org.jboss.netty.channel.socket.nio.NioServerBoss.run(NioServerBoss.java:42) ~[netty-3.10.5.Final.jar:?]
at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108) ~[netty-3.10.5.Final.jar:?]
at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42) ~[netty-3.10.5.Final.jar:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) ~[?:1.8.0_91]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) ~[?:1.8.0_91]
at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_91]端口20551被占用；
二话不说，来到Terminal面板。
1、查看端口对应的进程
2、杀掉进程
重新启动项目，完成。