Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available

女爷i 2023-06-17 15:00 113阅读 0赞

Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available for the service com.zbcx.demo.service.UserService from the url zookeeper

初学dubbox遇到的第一个错误，启动消费方时报此异常

  1. org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userController' defined in file [F:\Eclipse_Projects\dubboxdemo-web\target\classes\com\zbcx\demo\web\UserController.class]: Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanInitializationException: Failed to init remote service reference at filed userService in class com.zbcx.demo.web.UserController; nested exception is java.lang.IllegalStateException: Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available for the service com.zbcx.demo.service.UserService from the url zookeeper://192.168.25.129:2181/com.alibaba.dubbo.registry.RegistryService?application=dubboxdemo-web&dubbo=2.8.4&interface=com.zbcx.demo.service.UserService&methods=getName&pid=14112&side=consumer&timestamp=1575012122973 to the consumer 192.168.2.108 use dubbo version 2.8.4
  2.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
  3.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
  4.     at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
  5.     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
  6.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
  7.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
  8.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
  9.     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
  10.     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
  11.     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668)
  12.     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634)
  13.     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682)
  14.     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553)
  15.     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494)
  16.     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
  17.     at javax.servlet.GenericServlet.init(GenericServlet.java:160)
  18.     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
  19.     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
  20.     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
  21.     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5176)
  22.     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5460)
  23.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  24.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
  25.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
  26.     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  27.     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  28.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  29.     at java.lang.Thread.run(Thread.java:748)
  30. Caused by: org.springframework.beans.factory.BeanInitializationException: Failed to init remote service reference at filed userService in class com.zbcx.demo.web.UserController; nested exception is java.lang.IllegalStateException: Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available for the service com.zbcx.demo.service.UserService from the url zookeeper://192.168.25.129:2181/com.alibaba.dubbo.registry.RegistryService?application=dubboxdemo-web&dubbo=2.8.4&interface=com.zbcx.demo.service.UserService&methods=getName&pid=14112&side=consumer&timestamp=1575012122973 to the consumer 192.168.2.108 use dubbo version 2.8.4
  31.     at com.alibaba.dubbo.config.spring.AnnotationBean.postProcessBeforeInitialization(AnnotationBean.java:253)
  32.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
  33.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
  34.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
  35.     ... 27 more
  36. Caused by: java.lang.IllegalStateException: Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available for the service com.zbcx.demo.service.UserService from the url zookeeper://192.168.25.129:2181/com.alibaba.dubbo.registry.RegistryService?application=dubboxdemo-web&dubbo=2.8.4&interface=com.zbcx.demo.service.UserService&methods=getName&pid=14112&side=consumer&timestamp=1575012122973 to the consumer 192.168.2.108 use dubbo version 2.8.4
  37.     at com.alibaba.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:420)
  38.     at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:300)
  39.     at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:138)
  40.     at com.alibaba.dubbo.config.spring.AnnotationBean.refer(AnnotationBean.java:317)
  41.     at com.alibaba.dubbo.config.spring.AnnotationBean.postProcessBeforeInitialization(AnnotationBean.java:246)
  42.     ... 30 more
  44. 十一月 29, 2019 3:22:03 下午 org.apache.catalina.core.StandardContext loadOnStartup
  45. 严重: Servlet  threw load() exception
  46. java.lang.IllegalStateException: Failed to check the status of the service com.zbcx.demo.service.UserService. No provider available for the service com.zbcx.demo.service.UserService from the url zookeeper://192.168.25.129:2181/com.alibaba.dubbo.registry.RegistryService?application=dubboxdemo-web&dubbo=2.8.4&interface=com.zbcx.demo.service.UserService&methods=getName&pid=14112&side=consumer&timestamp=1575012122973 to the consumer 192.168.2.108 use dubbo version 2.8.4
  47.     at com.alibaba.dubbo.config.ReferenceConfig.createProxy(ReferenceConfig.java:420)
  48.     at com.alibaba.dubbo.config.ReferenceConfig.init(ReferenceConfig.java:300)
  49.     at com.alibaba.dubbo.config.ReferenceConfig.get(ReferenceConfig.java:138)
  50.     at com.alibaba.dubbo.config.spring.AnnotationBean.refer(AnnotationBean.java:317)
  51.     at com.alibaba.dubbo.config.spring.AnnotationBean.postProcessBeforeInitialization(AnnotationBean.java:246)
  52.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsBeforeInitialization(AbstractAutowireCapableBeanFactory.java:408)
  53.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1570)
  54.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:545)
  55.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:482)
  56.     at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:306)
  57.     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
  58.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:302)
  59.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
  60.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:772)
  61.     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:839)
  62.     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:538)
  63.     at org.springframework.web.servlet.FrameworkServlet.configureAndRefreshWebApplicationContext(FrameworkServlet.java:668)
  64.     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:634)
  65.     at org.springframework.web.servlet.FrameworkServlet.createWebApplicationContext(FrameworkServlet.java:682)
  66.     at org.springframework.web.servlet.FrameworkServlet.initWebApplicationContext(FrameworkServlet.java:553)
  67.     at org.springframework.web.servlet.FrameworkServlet.initServletBean(FrameworkServlet.java:494)
  68.     at org.springframework.web.servlet.HttpServletBean.init(HttpServletBean.java:136)
  69.     at javax.servlet.GenericServlet.init(GenericServlet.java:160)
  70.     at org.apache.catalina.core.StandardWrapper.initServlet(StandardWrapper.java:1280)
  71.     at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1193)
  72.     at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:1088)
  73.     at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:5176)
  74.     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5460)
  75.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
  76.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
  77.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
  78.     at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  79.     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  80.     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  81.     at java.lang.Thread.run(Thread.java:748)

此错误原因是编写服务方servcie时，写错了注解，应该使用dubbox提供的注解，不应该用spring的service注解

  1. **import org.springframework.stereotype.Service;**
  3. import com.zbcx.demo.service.UserService;
  5. @Service
  6. public class UserServiceImpl implements UserService{ 
  8.     public String getName() { 
  9.         // TODO Auto-generated method stub
  10.         return "zbcx";
  11.     }
  13. }

解决办法
将service注解改为dubbo官方注解

  1. **import com.alibaba.dubbo.config.annotation.Service;**
  2. import com.zbcx.demo.service.UserService;
  4. @Service
  5. public class UserServiceImpl implements UserService{ 
  7.     public String getName() { 
  8.         // TODO Auto-generated method stub
  9.         return "zbcx";
  10.     }
  12. }

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