前言
在搭建springcloud alibaba的时候，引入Dubbo相关依赖，项目启动报错。
版本信息
| 依赖 |
版本 |
| Spring Boot |
2.4.2 |
| Spring Cloud |
2020.0.0 |
| Spring Cloud Alibaba |
2021.1 |
引入依赖
<!-- Dubbo Spring Cloud Starter -->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-dubbo</artifactId>
</dependency>
错误信息
2021-07-07 14:00:46.399 INFO 8896 --- [ main] ConditionEvaluationReportLoggingListener :
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-07-07 14:00:46.402 WARN 8896 --- [ main] o.s.b.c.e.EventPublishingRunListener : Error calling ApplicationEventListener
java.lang.IllegalStateException: org.springframework.context.annotation.AnnotationConfigApplicationContext@f0da945 has not been refreshed yet
at org.springframework.context.support.AbstractApplicationContext.assertBeanFactoryActive(AbstractApplicationContext.java:1146) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1158) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.ApplicationListenerMethodAdapter.getTargetBean(ApplicationListenerMethodAdapter.java:339) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.ApplicationListenerMethodAdapter.doInvoke(ApplicationListenerMethodAdapter.java:304) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.ApplicationListenerMethodAdapter.processEvent(ApplicationListenerMethodAdapter.java:197) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.ApplicationListenerMethodAdapter.onApplicationEvent(ApplicationListenerMethodAdapter.java:160) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) [spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:162) [spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) [spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) [spring-context-5.3.3.jar:5.3.3]
at org.springframework.boot.context.event.EventPublishingRunListener.failed(EventPublishingRunListener.java:133) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplicationRunListeners.callFailedListener(SpringApplicationRunListeners.java:93) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplicationRunListeners.lambda$failed$7(SpringApplicationRunListeners.java:84) [spring-boot-2.4.2.jar:2.4.2]
at java.util.ArrayList.forEach(ArrayList.java:1249) ~[na:1.8.0_65]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplicationRunListeners.failed(SpringApplicationRunListeners.java:83) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:817) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:336) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) ~[spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) ~[spring-boot-2.4.2.jar:2.4.2]
at com.ify.order.OrderApplication.main(OrderApplication.java:13) ~[classes/:na]
2021-07-07 14:00:46.416 ERROR 8896 --- [ main] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.BeanInstantiationException: Failed to instantiate [feign.jaxrs2.JAXRS2Contract]: Constructor threw exception; nested exception is java.lang.NoClassDefFoundError: javax/ws/rs/Path
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:225) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:147) ~[spring-beans-5.3.3.jar:5.3.3]
at com.alibaba.cloud.dubbo.metadata.resolver.DubboServiceBeanMetadataResolver.createContract(DubboServiceBeanMetadataResolver.java:95) ~[spring-cloud-starter-dubbo-2021.1.jar:2021.1]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_65]
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193) ~[na:1.8.0_65]
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175) ~[na:1.8.0_65]
at java.util.Spliterators$ArraySpliterator.forEachRemaining(Spliterators.java:948) ~[na:1.8.0_65]
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481) ~[na:1.8.0_65]
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471) ~[na:1.8.0_65]
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151) ~[na:1.8.0_65]
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174) ~[na:1.8.0_65]
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) ~[na:1.8.0_65]
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418) ~[na:1.8.0_65]
at com.alibaba.cloud.dubbo.metadata.resolver.DubboServiceBeanMetadataResolver.afterSingletonsInstantiated(DubboServiceBeanMetadataResolver.java:89) ~[spring-cloud-starter-dubbo-2021.1.jar:2021.1]
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:963) ~[spring-beans-5.3.3.jar:5.3.3]
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:923) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:588) ~[spring-context-5.3.3.jar:5.3.3]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:767) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:426) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:326) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1311) [spring-boot-2.4.2.jar:2.4.2]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1300) [spring-boot-2.4.2.jar:2.4.2]
at com.ify.order.OrderApplication.main(OrderApplication.java:13) [classes/:na]
Caused by: java.lang.NoClassDefFoundError: javax/ws/rs/Path
at feign.jaxrs.JAXRSContract.<init>(JAXRSContract.java:45) ~[feign-jaxrs-10.10.1.jar:na]
at feign.jaxrs2.JAXRS2Contract.<init>(JAXRS2Contract.java:27) ~[feign-jaxrs2-9.7.0.jar:na]
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) ~[na:1.8.0_65]
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62) ~[na:1.8.0_65]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) ~[na:1.8.0_65]
at java.lang.reflect.Constructor.newInstance(Constructor.java:422) ~[na:1.8.0_65]
at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:212) ~[spring-beans-5.3.3.jar:5.3.3]
... 23 common frames omitted
Caused by: java.lang.ClassNotFoundException: javax.ws.rs.Path
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[na:1.8.0_65]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_65]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) ~[na:1.8.0_65]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_65]
... 30 common frames omitted
解决
查找发现javax/ws/rs/Path 是属于jsr311-api.jar 包下的。引入相关jar包
<dependency>
<groupId>javax.ws.rs</groupId>
<artifactId>jsr311-api</artifactId>
<version>1.1.1</version>
</dependency>
可以正常启动，问题解决。
