2回答

• 

  Debug_SteadyJack

  2019-03-22 13:50:58

  很明显是你的dubbo2.8.4的jar 没有下载下来
  换成2.6.4吧，参考我这里：https://www.imooc.com/qadetail/302023   照着做即可

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• 

  霜花似雪

  2019-03-22 18:03:28

  谢谢老师！项目我成功启动了，但是dubboTwo启动就报，如下错误，百度说是我连接有问题，再三检查找不出问题原因，还请老师指点一下。

  [2019-03-22 18:00:39.726] boot -  INFO [localhost-startStop-1] --- ServletRegistrationBean: Servlet dispatcherServlet mapped to [/]

  [2019-03-22 18:00:39.729] boot -  INFO [localhost-startStop-1] --- FilterRegistrationBean: Mapping filter: 'characterEncodingFilter' to: [/*]

  [2019-03-22 18:00:39.730] boot -  INFO [localhost-startStop-1] --- FilterRegistrationBean: Mapping filter: 'hiddenHttpMethodFilter' to: [/*]

  [2019-03-22 18:00:39.730] boot -  INFO [localhost-startStop-1] --- FilterRegistrationBean: Mapping filter: 'httpPutFormContentFilter' to: [/*]

  [2019-03-22 18:00:39.730] boot -  INFO [localhost-startStop-1] --- FilterRegistrationBean: Mapping filter: 'requestContextFilter' to: [/*]

  [2019-03-22 18:00:40.931] boot -  WARN [main] --- AbstractClient:  [DUBBO] Failed to start NettyClient DESKTOP-E8OGBUH/192.168.199.1 connect to the server /127.0.0.1:20903 (check == false, ignore and retry later!), cause: client(url: dubbo://127.0.0.1:20903/com.lhf.dubbo.one.api.service.IDubboItemService?application=dubboTwo-consume&check=false&codec=dubbo&dubbo=2.0.2&heartbeat=60000&interface=com.lhf.dubbo.one.api.service.IDubboItemService&methods=listPageItems,listItems,listPageItemsParams&organization=dubbox&owner=debug&pid=13372&protocol=dubbo&register.ip=192.168.199.1&revision=1.0.1&side=consumer&timeout=20000&timestamp=1553248839790&version=1.0) failed to connect to server /127.0.0.1:20903, error message is:Connection refused: no further information, dubbo version: 2.6.5, current host: 192.168.199.1

  com.alibaba.dubbo.remoting.RemotingException: client(url: dubbo://127.0.0.1:20903/com.lhf.dubbo.one.api.service.IDubboItemService?application=dubboTwo-consume&check=false&codec=dubbo&dubbo=2.0.2&heartbeat=60000&interface=com.lhf.dubbo.one.api.service.IDubboItemService&methods=listPageItems,listItems,listPageItemsParams&organization=dubbox&owner=debug&pid=13372&protocol=dubbo&register.ip=192.168.199.1&revision=1.0.1&side=consumer&timeout=20000&timestamp=1553248839790&version=1.0) failed to connect to server /127.0.0.1:20903, error message is:Connection refused: no further information

  at com.alibaba.dubbo.remoting.transport.netty.NettyClient.doConnect(NettyClient.java:125)

  at com.alibaba.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:275)

  at com.alibaba.dubbo.remoting.transport.AbstractClient.<init>(AbstractClient.java:89)

  at com.alibaba.dubbo.remoting.transport.netty.NettyClient.<init>(NettyClient.java:59)

  at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.connect(NettyTransporter.java:37)

  at com.alibaba.dubbo.remoting.Transporter$Adaptive.connect(Transporter$Adaptive.java)

  at com.alibaba.dubbo.remoting.Transporters.connect(Transporters.java:75)

  at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.connect(HeaderExchanger.java:39)

  at com.alibaba.dubbo.remoting.exchange.Exchangers.connect(Exchangers.java:109)

  at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.initClient(DubboProtocol.java:417)

  at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.getSharedClient(DubboProtocol.java:384)

  at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.getClients(DubboProtocol.java:355)

  at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.refer(DubboProtocol.java:337)

  at com.alibaba.dubbo.qos.protocol.QosProtocolWrapper.refer(QosProtocolWrapper.java:71)

  at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.refer(ProtocolListenerWrapper.java:67)

  at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.refer(ProtocolFilterWrapper.java:108)

  at com.alibaba.dubbo.rpc.Protocol$Adaptive.refer(Protocol$Adaptive.java)

  at com.alibaba.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:394)

  at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:333)

  at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:163)

  at com.alibaba.dubbo.config.spring.ReferenceBean.getObject(ReferenceBean.java:67)

  at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:171)

  at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101)

  at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1645)

  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1175)

  at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:257)

  at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)

  at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:251)

  at org.springframework.beans.factory.support.DefaultListableBeanFactory.addCandidateEntry(DefaultListableBeanFactory.java:1322)

  at org.springframework.beans.factory.support.DefaultListableBeanFactory.findAutowireCandidates(DefaultListableBeanFactory.java:1288)

  at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1098)

  at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1062)

  at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:583)

  at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:90)

  at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:372)

  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1341)

  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:572)

  at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:495)

  at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:317)

  at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)

  at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:315)

  at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199)

  at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:759)

  at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:869)

  at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:550)

  at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140)

  at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:780)

  at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:412)

  at org.springframework.boot.SpringApplication.run(SpringApplication.java:333)

  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1277)

  at org.springframework.boot.SpringApplication.run(SpringApplication.java:1265)

  at com.lhf.dubbo.two.server.BootMoreApplication.main(BootMoreApplication.java:28)

  Caused by: java.net.ConnectException: Connection refused: no further information

  at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

  at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:384)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:354)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:276)

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

  at java.lang.Thread.run(Thread.java:748)

  [2019-03-22 18:00:40.982] boot -  INFO [main] --- AbstractConfig:  [DUBBO] Refer dubbo service com.lhf.dubbo.one.api.service.IDubboItemService from url dubbo://127.0.0.1:20903/com.lhf.dubbo.one.api.service.IDubboItemService?application=dubboTwo-consume&check=false&dubbo=2.0.2&interface=com.lhf.dubbo.one.api.service.IDubboItemService&methods=listPageItems,listItems,listPageItemsParams&organization=dubbox&owner=debug&pid=13372&protocol=dubbo&register.ip=192.168.199.1&revision=1.0.1&side=consumer&timeout=20000&timestamp=1553248839790&version=1.0, dubbo version: 2.6.5, current host: 192.168.199.1

  [2019-03-22 18:00:41.780] boot -  INFO [main] --- DruidDataSource: {dataSource-1} inited

  [2019-03-22 18:00:41.857] boot -  INFO [main] --- SimpleUrlHandlerMapping: Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]

  [2019-03-22 18:00:41.922] boot -  INFO [main] --- RequestMappingHandlerAdapter: Looking for @ControllerAdvice: org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@60dcc9fe: startup date [Fri Mar 22 18:00:36 CST 2019]; root of context hierarchy

  [2019-03-22 18:00:41.972] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/item/list],methods=[GET]}" onto public java.util.Map<java.lang.String, java.lang.Object> com.lhf.dubbo.two.server.controller.ItemController.list()

  [2019-03-22 18:00:41.973] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/item/page/list],methods=[GET]}" onto public java.util.Map<java.lang.String, java.lang.Object> com.lhf.dubbo.two.server.controller.ItemController.pageList(java.lang.Integer,java.lang.Integer)

  [2019-03-22 18:00:41.973] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/item/page/list/params],methods=[GET]}" onto public java.util.Map<java.lang.String, java.lang.Object> com.lhf.dubbo.two.server.controller.ItemController.pageListParams(java.lang.Integer,java.lang.Integer,java.lang.String)

  [2019-03-22 18:00:41.974] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/order/record/push],methods=[POST],consumes=[application/json;charset=UTF-8]}" onto public java.util.Map<java.lang.String, java.lang.Object> com.lhf.dubbo.two.server.controller.OrderRecordController.pushRecord(com.lhf.dubbo.two.server.request.RecordPushRequest)

  [2019-03-22 18:00:41.975] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.error(javax.servlet.http.HttpServletRequest)

  [2019-03-22 18:00:41.976] boot -  INFO [main] --- RequestMappingHandlerMapping: Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.servlet.error.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)

  [2019-03-22 18:00:41.994] boot -  INFO [main] --- SimpleUrlHandlerMapping: Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]

  [2019-03-22 18:00:41.994] boot -  INFO [main] --- SimpleUrlHandlerMapping: Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]

  [2019-03-22 18:00:42.396] boot -  INFO [main] --- TomcatWebServer: Tomcat started on port(s): 8094 (http) with context path '/dubboTwo'

  [2019-03-22 18:00:42.398] boot -  INFO [main] --- BootMoreApplication: Started BootMoreApplication in 6.295 seconds (JVM running for 6.926)

  [2019-03-22 18:00:42.901] boot -  WARN [DubboClientReconnectTimer-thread-1] --- AbstractClient:  [DUBBO] client reconnect to 127.0.0.1:20903 find error . url: dubbo://127.0.0.1:20903/com.lhf.dubbo.one.api.service.IDubboItemService?application=dubboTwo-consume&check=false&codec=dubbo&dubbo=2.0.2&heartbeat=60000&interface=com.lhf.dubbo.one.api.service.IDubboItemService&methods=listPageItems,listItems,listPageItemsParams&organization=dubbox&owner=debug&pid=13372&protocol=dubbo&register.ip=192.168.199.1&revision=1.0.1&side=consumer&timeout=20000&timestamp=1553248839790&version=1.0, dubbo version: 2.6.5, current host: 192.168.199.1

  com.alibaba.dubbo.remoting.RemotingException: client(url: dubbo://127.0.0.1:20903/com.lhf.dubbo.one.api.service.IDubboItemService?application=dubboTwo-consume&check=false&codec=dubbo&dubbo=2.0.2&heartbeat=60000&interface=com.lhf.dubbo.one.api.service.IDubboItemService&methods=listPageItems,listItems,listPageItemsParams&organization=dubbox&owner=debug&pid=13372&protocol=dubbo&register.ip=192.168.199.1&revision=1.0.1&side=consumer&timeout=20000&timestamp=1553248839790&version=1.0) failed to connect to server /127.0.0.1:20903, error message is:Connection refused: no further information

  at com.alibaba.dubbo.remoting.transport.netty.NettyClient.doConnect(NettyClient.java:125)

  at com.alibaba.dubbo.remoting.transport.AbstractClient.connect(AbstractClient.java:275)

  at com.alibaba.dubbo.remoting.transport.AbstractClient$1.run(AbstractClient.java:156)

  at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

  at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)

  at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)

  at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)

  at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

  at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

  at java.lang.Thread.run(Thread.java:748)

  Caused by: java.net.ConnectException: Connection refused: no further information

  at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

  at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.connect(NioClientSocketPipelineSink.java:384)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.processSelectedKeys(NioClientSocketPipelineSink.java:354)

  at org.jboss.netty.channel.socket.nio.NioClientSocketPipelineSink$Boss.run(NioClientSocketPipelineSink.java:276)

  ... 3 more

  
  

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