一个不完美的解决方法是,让FeignClient以来注入的方式进行注入 @Service(registry="dubbo-registry",interfaceClass=DubboProvideFacade.class)publicclassDubboProviderServiceImplimplementsDubboProvideFacade{@Resource@LazyprivateFeignClientfeignClient;···}
使用idea 对 dubbo 消费者源码进行 debug 时,出现了<dubbo:reference interface="" /> interface not allow null!异常,而如果不 debug 运行,就不会出现异常,具体如下: [15/04/21 05:19:22:022 GMT+08:00] main WARN config.AbstractConfig: [DUBBO]null, dubbo version: 2.6.3, current host: 169.254.1...
后来突然发现报的异常叫做 interface not allow null! ,突然想起来我使用的时候 @com.alibaba.dubbo.config.annotation.Service(interfaceClass=DictionaryTypeServiceImpl.class), 发现是我的interfaceClass属性指向的是接口的实现类,修改成接口@com.alibaba.dubbo.config.annotation.Service(interfaceClass=DictionaryTypeServic...
1.service配置文件: <dubbo:service interface=""ref=""version=""/> 2.consumer配置文件: <dubbo:reference id=""interface=""version=""/>
if (interfaceName == null || interfaceName.length() == 0) { throw new IllegalStateException("<dubbo:service interface=\"\" /> interface not allow null!"); } checkDefault(); //省略 if (ref instanceof GenericService) { interfaceClass = GenericService.class; ...
Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'CServiceImpl': Injection of @DubboReference dependencies is failed; nested exception is java.lang.IllegalStateException: <dubbo:service interface="" /> interface not allow null!
Get an error :"<dubbo:service interface="" /> interface not allow null!", if no cyclic dependency, it works fine. If there is an exception, please attach the exception trace: nested exception is java.lang.IllegalStateException: <dubbo:service interface="" /> interface not allow null! at...
public interface NotifyListener { void notify(List<URL> var1); } 1. 2. 3. 4. 5. 向注册中心注册自身信息之后,会向注册中心订阅providers,configurators,routers节点信息。订阅之后RegistryDirectory会收到这几个节点的信息,并触发DubboInvoker的生成,即用于远程调用的invoker。
Dubbo使用了Java的SPI(Service Provider Interface)扩展机制。SPI是JDK内置的一种服务发现机制,其具体实现方式是在资源文件META-INF/services中通过名称为SPI接口的全限定类名创建一个文本文件,在这个文本文件中可以写入该SPI接口的实现类全限定类名,这样可以实现动态加载实现类的目的。
public interface GenericService { /** * Generic invocation * * @param method Method name, e.g. findPerson. If there are overridden methods, parameter info is * required, e.g. findPerson(java.lang.String) * @param parameterTypes Parameter types ...