Cumulocity实施新协议

我正在研究跟踪代理，并尝试添加新协议以用于我的设备。我试图模仿你与GL200协议做了什么，但是当它达到TrackerFactory.create（），它返回以下错误：Cumulocity实施新协议

16:05:47.912 [pool-2-thread-1] ERROR c8y.trackeragent.RequestHandler - Error handling request: 
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectedAXTracker': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected java.util.List c8y.trackeragent.ConnectedTracker.fragments; nested exception is org.springframework.beans.factory.NoSuchBeanDefinition 
Exception: No qualifying bean of type [c8y.trackeragent.Fragment] found for dependency [collection of c8y.trackeragent.Fragment]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:334) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1202) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:537) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:476) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:322) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:217) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:350) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBean(DefaultListableBeanFactory.java:331) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at c8y.trackeragent.protocol.mapping.TrackerFactory.create(TrackerFactory.java:76) ~[classes/:na] 
     at c8y.trackeragent.protocol.mapping.TrackerFactory.discoverTracker(TrackerFactory.java:48) ~[classes/:na] 
     at c8y.trackeragent.protocol.mapping.TrackerFactory.getTracker(TrackerFactory.java:33) ~[classes/:na] 
     at c8y.trackeragent.RequestHandler.run(RequestHandler.java:32) ~[classes/:na] 
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91] 
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91] 
     at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91] 
Caused by: org.springframework.beans.factory.BeanCreationException: Could not autowire field: protected java.util.List c8y.trackeragent.ConnectedTracker.fragments; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [c8y.trackeragent.Fragment] found for dependency [collection of c8y.trackeragent.Fragment]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:561) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:88) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessPropertyValues(AutowiredAnnotationBeanPostProcessor.java:331) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     ... 14 common frames omitted 
Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type [c8y.trackeragent.Fragment] found for dependency [collection of c8y.trackeragent.Fragment]: expected at least 1 bean which qualifies as autowire candidate for this dependency. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)} 
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.raiseNoSuchBeanDefinitionException(DefaultListableBeanFactory.java:1308) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 

     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1006) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:949) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredFieldElement.inject(AutowiredAnnotationBeanPostProcessor.java:533) ~[spring-beans-4.1.4.RELEASE.jar:4.1.4.RELEASE] 
     ... 16 common frames omitted

我没有春天的知识，你能不能给我一个提示？

来源

2016-09-14 Gaetan L.

例如，GL200Fragment在何处/如何声明为Bean？ –

我发现问题：我扩展AXFragment接口（本身扩展Fragment）的类没有标记为@Component。

来源

2016-09-15 14:55:23

从堆栈跟踪发生这种情况：它发现跟踪器连接是您添加的类型，但是当尝试实例化类时失败了，因为它无法设置该类所需的fragements列表。

每个跟踪器协议都需要至少一个片段（一个实现c8y.trackeragent.Fragment的类）。

如果你看看GL200的实现，还有另外一个接口GL200Fragment，然后例如解析器（GL200Parser）实现了这个接口。它看起来像你没有添加任何实现此接口的类。

来源

2016-09-14 15:52:01 TyrManuZ

你好，thx为答案。但我做到了！我的课ConnectedAXTracker扩展了ConnectedTracker ，AXFragment扩展了片段和抽象类AXParser实现了Parser，AXFragment。还有什么我错过了吗？ –

Cumulocity实施新协议

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