java.lang.NoClassDefFoundError:

Springboot dubbo zk 启动失败

2021-04-20 16:52:36||PROJECT_IS_UNDEFINED||ENV_IS_UNDEFINED||SERVICE_NAME_IS_UNDEFINED||HOITBGHZNBX||ERROR||null||null||o.s.boot.SpringApplication||Application run failed
java.lang.NoClassDefFoundError: org/apache/dubbo/config/spring/util/BeanRegistrar
    at org.apache.dubbo.spring.boot.beans.factory.config.OverrideBeanDefinitionRegistryPostProcessor.postProcessBeanDefinitionRegistry(OverrideBeanDefinitionRegistryPostProcessor.java:36)
    at org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:71)
    at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:707)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:533)
    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.bnq.worker.WorkerWebApplication.main(WorkerWebApplication.java:21)
Caused by: java.lang.ClassNotFoundException: org.apache.dubbo.config.spring.util.BeanRegistrar
    at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:355)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
    ... 12 common frames omitted
Disconnected from the target VM, address: '127.0.0.1:55573', transport: 'socket'

zk和dubbo的版本不匹配

原因：

1. 本地zk需与部署的zk版本一致
2. dubbo需与zk版本匹配

改之前

            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.7.5</version>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-dependencies-zookeeper</artifactId>
                <version>2.7.5</version>
                <type>pom</type>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>2.7.1</version>
            </dependency>

改之后

            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo</artifactId>
                <version>2.7.3</version>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-dependencies-zookeeper</artifactId>
                <version>2.7.3</version>
                <type>pom</type>
            </dependency>
            <dependency>
                <groupId>org.apache.dubbo</groupId>
                <artifactId>dubbo-spring-boot-starter</artifactId>
                <version>2.7.1</version>
            </dependency>