关于springboot整合dubbo时找不到service类的问题

电玩女神 2023-09-30 08:48 1阅读 0赞

在做spring整合dubbo项目时候，将服务接口和实体类写进一个普通的Maven工程，在服务提供者中继承服务接口，在消费者中调用zookeeper注册中心的服务。在依次启动了zookeeper和提供者都没报错，但在启动消费者时候报错：

2022-03-10 21:09:20.286 INFO 18292 --- \[ main\] com.longtong.Application : Starting Application using Java 1.8.0\_60 on LONGTONG with PID 18292 (E:\\Java\\IntelliJ IDEA 2019.3.3\\longtong\_SpringBoot\\024\_consumer\\target\\classes started by SAMSUNG in E:\\Java\\IntelliJ IDEA 2019.3.3\\longtong\_SpringBoot)  
2022-03-10 21:09:20.288 INFO 18292 --- \[ main\] com.longtong.Application : No active profile set, falling back to 1 default profile: "default"  
2022-03-10 21:09:20.683 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[referenceAnnotationBeanPostProcessor\] has been registered.  
2022-03-10 21:09:20.684 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[org.apache.dubbo.config.spring.beans.factory.annotation.DubboConfigAliasPostProcessor\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[dubboConfigAliasPostProcessor\] has been registered.  
2022-03-10 21:09:20.685 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[org.apache.dubbo.config.spring.context.DubboLifecycleComponentApplicationListener\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[dubboLifecycleComponentApplicationListener\] has been registered.  
2022-03-10 21:09:20.685 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[org.apache.dubbo.config.spring.context.DubboBootstrapApplicationListener\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[dubboBootstrapApplicationListener\] has been registered.  
2022-03-10 21:09:20.686 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[org.apache.dubbo.config.spring.beans.factory.config.DubboConfigDefaultPropertyValueBeanPostProcessor\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[dubboConfigDefaultPropertyValueBeanPostProcessor\] has been registered.  
2022-03-10 21:09:20.895 INFO 18292 --- \[ main\] .b.f.a.ConfigurationBeanBindingRegistrar : The configuration bean definition \[name : org.apache.dubbo.config.ApplicationConfig\#0, content : Root bean: class \[org.apache.dubbo.config.ApplicationConfig\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null\] has been registered.  
2022-03-10 21:09:20.895 INFO 18292 --- \[ main\] com.alibaba.spring.util.BeanRegistrar : The Infrastructure bean definition \[Root bean: class \[com.alibaba.spring.beans.factory.annotation.ConfigurationBeanBindingPostProcessor\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=nullwith name \[configurationBeanBindingPostProcessor\] has been registered.  
2022-03-10 21:09:20.895 INFO 18292 --- \[ main\] .b.f.a.ConfigurationBeanBindingRegistrar : The configuration bean definition \[name : org.apache.dubbo.config.RegistryConfig\#0, content : Root bean: class \[org.apache.dubbo.config.RegistryConfig\]; scope=; abstract=false; lazyInit=null; autowireMode=0; dependencyCheck=0; autowireCandidate=true; primary=false; factoryBeanName=null; factoryMethodName=null; initMethodName=null; destroyMethodName=null\] has been registered.  
2022-03-10 21:09:23.091 INFO 18292 --- \[ main\] o.s.c.a.ConfigurationClassPostProcessor : Cannot enhance @Configuration bean definition 'org.apache.dubbo.spring.boot.autoconfigure.DubboAutoConfiguration' since its singleton instance has been created too early. The typical cause is a non-static @Bean method with a BeanDefinitionRegistryPostProcessor return type: Consider declaring such methods as 'static'.  
2022-03-10 21:09:23.434 INFO 18292 --- \[ main\] o.s.b.w.embedded.tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http)  
2022-03-10 21:09:23.442 INFO 18292 --- \[ main\] o.apache.catalina.core.StandardService : Starting service \[Tomcat\]  
2022-03-10 21:09:23.442 INFO 18292 --- \[ main\] org.apache.catalina.core.StandardEngine : Starting Servlet engine: \[Apache Tomcat/9.0.58\]  
2022-03-10 21:09:23.521 INFO 18292 --- \[ main\] o.a.c.c.C.\[Tomcat\].\[localhost\].\[/\] : Initializing Spring embedded WebApplicationContext  
2022-03-10 21:09:23.521 INFO 18292 --- \[ main\] w.s.c.ServletWebServerApplicationContext : Root WebApplicationContext: initialization completed in 3187 ms  
2022-03-10 21:09:23.612 WARN 18292 --- \[ main\] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'studentController': Injection of resource dependencies failed; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.longtong.service.StudentService' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: \{@javax.annotation.Resource(shareable=true, lookup=, name=, description=, authenticationType=CONTAINER, type=class java.lang.Object, mappedName=), @org.apache.dubbo.config.annotation.DubboReference(cluster=, methods=\[\], lazy=false, listener=\[\], loadbalance=, callbacks=0, onconnect=, timeout=0, layer=, protocol=, reconnect=, ondisconnect=, stub=, client=, id=, tag=, interfaceName=, consumer=, connections=0, validation=, group=, owner=, init=false, registry=\[\], cache=, module=, injvm=true, monitor=, check=true, services=\[\], stubevent=false, version=1.0, actives=0, sent=false, generic=false, url=, filter=\[\], proxy=, retries=2, async=false, interfaceClass=interface com.longtong.service.StudentService, application=, sticky=false, mock=, parameters=\[\], merger=)\}  
2022-03-10 21:09:23.612 INFO 18292 --- \[ main\] f.a.ReferenceAnnotationBeanPostProcessor : class org.apache.dubbo.config.spring.beans.factory.annotation.ReferenceAnnotationBeanPostProcessor was destroying!  
2022-03-10 21:09:23.614 INFO 18292 --- \[ main\] o.apache.catalina.core.StandardService : Stopping service \[Tomcat\]  
2022-03-10 21:09:23.625 INFO 18292 --- \[ main\] ConditionEvaluationReportLoggingListener :

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.  
2022-03-10 21:09:23.643 ERROR 18292 --- \[ main\] o.s.b.d.LoggingFailureAnalysisReporter :

\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
APPLICATION FAILED TO START  
\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*

Description:

A component required a bean of type 'com.longtong.service.StudentService' that could not be found.

Action:

Consider defining a bean of type 'com.longtong.service.StudentService' in your configuration.

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBATENMQU5OQURU_size_20_color_FFFFFF_t_70_g_se_x_16][]

显而易见，是在控制层类下没能成功调用服务类。我最先考虑到的是配置文件可能扫描包路径不对。反复巡查后，发现没有什么问题，然后就是几个小时过去了。。。。。。。。。。。

![watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBATENMQU5OQURU_size_20_color_FFFFFF_t_70_g_se_x_16 1][]

DubboReference是把远程服务对象当做spring容器中的对象一样注入。Resource和Autowired是把本地spring容器中的对象进行注入。所以这里不能用@Resource，而且这里写重复了，把这行删掉。

最后，我扇了自己一巴掌。

[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBATENMQU5OQURU_size_20_color_FFFFFF_t_70_g_se_x_16]: https://img-blog.csdnimg.cn/3bd4d4f22ed74cb58ef44a3fbe841231.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBATENMQU5OQURU,size_20,color_FFFFFF,t_70,g_se,x_16
[watermark_type_d3F5LXplbmhlaQ_shadow_50_text_Q1NETiBATENMQU5OQURU_size_20_color_FFFFFF_t_70_g_se_x_16 1]: https://img-blog.csdnimg.cn/f3037a3766f6428e83e48408d10fb5fe.png?x-oss-process=image/watermark,type_d3F5LXplbmhlaQ,shadow_50,text_Q1NETiBATENMQU5OQURU,size_20,color_FFFFFF,t_70,g_se,x_16