Dubbo 启动 报 javassist/ClassPath And org/jboss/netty/channel/ChannelFactory异常
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一. javassist/ClassPath
在使用Dubbo的时候,启动报错如下:
aused by: java.lang.IllegalStateException: Failed to load extension class(interface: interface com.alibaba.dubbo.common.compiler.Compiler, class line: com.alibaba.dubbo.common.compiler.support.JavassistCompiler) in jar:file:/F:/My_WorkSpace/repository/com/alibaba/dubbo/2.5.3/dubbo-2.5.3.jar!/META-INF/dubbo/internal/com.alibaba.dubbo.common.compiler.Compiler, cause: javassist/ClassPath at com.alibaba.dubbo.common.extension.ExtensionLoader.loadFile(ExtensionLoader.java:685) at com.alibaba.dubbo.common.extension.ExtensionLoader.loadExtensionClasses(ExtensionLoader.java:591) at com.alibaba.dubbo.common.extension.ExtensionLoader.getExtensionClasses(ExtensionLoader.java:567) at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:728) at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:721) at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtension(ExtensionLoader.java:455) at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtensionClass(ExtensionLoader.java:738) at com.alibaba.dubbo.common.extension.ExtensionLoader.getAdaptiveExtensionClass(ExtensionLoader.java:732) at com.alibaba.dubbo.common.extension.ExtensionLoader.createAdaptiveExtension(ExtensionLoader.java:721) ... 27 moreCaused by: java.lang.NoClassDefFoundError: javassist/ClassPath at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:274) at com.alibaba.dubbo.common.extension.ExtensionLoader.loadFile(ExtensionLoader.java:627) ... 35 more
解决,缺失jar:
<!--javassist jar--> <dependency> <groupId>org.javassist</groupId> <artifactId>javassist</artifactId> <version>3.18.1-GA</version> </dependency>
二. org/jboss/netty/channel/ChannelFactory
在使用Dubbo的时候,启动报错如下:
Exception in thread "main" java.lang.NoClassDefFoundError: org/jboss/netty/channel/ChannelFactory at com.alibaba.dubbo.remoting.transport.netty.NettyTransporter.bind(NettyTransporter.java:33) at com.alibaba.dubbo.remoting.Transporter$Adpative.bind(Transporter$Adpative.java) at com.alibaba.dubbo.remoting.Transporters.bind(Transporters.java:48) at com.alibaba.dubbo.remoting.exchange.support.header.HeaderExchanger.bind(HeaderExchanger.java:41) at com.alibaba.dubbo.remoting.exchange.Exchangers.bind(Exchangers.java:63) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.createServer(DubboProtocol.java:287) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.openServer(DubboProtocol.java:266) at com.alibaba.dubbo.rpc.protocol.dubbo.DubboProtocol.export(DubboProtocol.java:253) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:56) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:55) at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) at com.alibaba.dubbo.registry.integration.RegistryProtocol.doLocalExport(RegistryProtocol.java:153) at com.alibaba.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:107) at com.alibaba.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:54) at com.alibaba.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:53) at com.alibaba.dubbo.rpc.Protocol$Adpative.export(Protocol$Adpative.java) at com.alibaba.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:485) at com.alibaba.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:281) at com.alibaba.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:242) at com.alibaba.dubbo.config.ServiceConfig.export(ServiceConfig.java:143) at com.alibaba.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:109) at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:96) at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:334) at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:948) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:482) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139) at org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93) at com.dufy.service.ProviderServiceTest.main(ProviderServiceTest.java:21) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at com.intellij.rt.execution.application.AppMain.main(AppMain.java:147)Caused by: java.lang.ClassNotFoundException: org.jboss.netty.channel.ChannelFactory at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 33 more
解决,Dubbo依赖Netty,添加jar:
<!--netty jar--> <dependency> <groupId>io.netty</groupId> <artifactId>netty</artifactId> <version>3.6.10.Final</version> </dependency>
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