java.lang.NoClassDefFoundError

[kathetina]

1. dubbo-2.7.2 + dubbo-registry-nacos-2.7.2+nacos-1.0.1

2. error message
   Exception in thread "main" java.lang.NoClassDefFoundError: com/alibaba/nacos/client/naming/utils/StringUtils
   at org.apache.dubbo.registry.nacos.NacosRegistryFactory.putPropertyIfAbsent(NacosRegistryFactory.java:104)
   at org.apache.dubbo.registry.nacos.NacosRegistryFactory.setProperties(NacosRegistryFactory.java:94)
   at org.apache.dubbo.registry.nacos.NacosRegistryFactory.buildNacosProperties(NacosRegistryFactory.java:73)
   at org.apache.dubbo.registry.nacos.NacosRegistryFactory.buildNamingService(NacosRegistryFactory.java:57)
   at org.apache.dubbo.registry.nacos.NacosRegistryFactory.createRegistry(NacosRegistryFactory.java:53)
   at org.apache.dubbo.registry.support.AbstractRegistryFactory.getRegistry(AbstractRegistryFactory.java:103)
   at org.apache.dubbo.registry.RegistryFactory$Adaptive.getRegistry(RegistryFactory$Adaptive.java)
   at org.apache.dubbo.registry.integration.RegistryProtocol.getRegistry(RegistryProtocol.java:298)
   at org.apache.dubbo.registry.integration.RegistryProtocol.export(RegistryProtocol.java:212)
   at org.apache.dubbo.qos.protocol.QosProtocolWrapper.export(QosProtocolWrapper.java:61)
   at org.apache.dubbo.rpc.protocol.ProtocolFilterWrapper.export(ProtocolFilterWrapper.java:120)
   at org.apache.dubbo.rpc.protocol.ProtocolListenerWrapper.export(ProtocolListenerWrapper.java:59)
   at org.apache.dubbo.rpc.Protocol$Adaptive.export(Protocol$Adaptive.java)
   at org.apache.dubbo.config.ServiceConfig.doExportUrlsFor1Protocol(ServiceConfig.java:607)
   at org.apache.dubbo.config.ServiceConfig.doExportUrls(ServiceConfig.java:457)
   at org.apache.dubbo.config.ServiceConfig.doExport(ServiceConfig.java:415)
   at org.apache.dubbo.config.ServiceConfig.export(ServiceConfig.java:378)
   at org.apache.dubbo.config.spring.ServiceBean.export(ServiceBean.java:336)
   at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:114)
   at org.apache.dubbo.config.spring.ServiceBean.onApplicationEvent(ServiceBean.java:60)
   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:393)
   at org.springframework.context.support.AbstractApplicationContext.publishEvent(AbstractApplicationContext.java:347)
   at org.springframework.context.support.AbstractApplicationContext.finishRefresh(AbstractApplicationContext.java:883)
   at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:546)
   at org.apache.dubbo.container.spring.SpringContainer.start(SpringContainer.java:50)
   at org.apache.dubbo.container.Main.main(Main.java:90)
   Caused by: java.lang.ClassNotFoundException: com.alibaba.nacos.client.naming.utils.StringUtils
   at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)

there is no StringUtils:

there is StringUtils:

[nkorange]

The cause of this error is that com.alibaba.nacos.client.naming.utils.StringUtils is moved to com.alibaba.nacos.client.utils.StringUtils. Currently you have to fall back to Nacos 1.0.0. Report this bug to Dubbo please, they should change their invocation of StringUtils.

[nkorange]

This problem will be fixed in the next version of Dubbo.

[moayi]

你好，我在整合spingmvc和nacos,能提供
com.alibaba
dubbo-registry-nacos
0.0.2



com.alibaba
dubbo
2.6.5



com.alibaba.spring
spring-context-support
1.0.2


io.netty
netty-all
4.1.22.Final


com.alibaba
fastjson
${fastjson.version}



com.alibaba.nacos
nacos-spring-context
0.3.3



com.alibaba.nacos
nacos-client
1.1.4

的版本对吗？