Dubbo報錯之 No provider available for the service use dubbo version 2.5.3

com.alibaba.dubbo.rpc.RpcException: No provider available from registry 127.0.0.1:2181 for service cn.qlq.service.user.UserService:1.0.0 on consumer 10.10.24.4 use dubbo version 2.6.0, may be providers disabled or not registered ?
at com.alibaba.dubbo.registry.integration.RegistryDirectory.doList(RegistryDirectory.java:572) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.rpc.cluster.directory.AbstractDirectory.list(AbstractDirectory.java:73) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.list(AbstractClusterInvoker.java:265) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.rpc.cluster.support.AbstractClusterInvoker.invoke(AbstractClusterInvoker.java:224) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.rpc.cluster.support.wrapper.MockClusterInvoker.invoke(MockClusterInvoker.java:70) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.rpc.proxy.InvokerInvocationHandler.invoke(InvokerInvocationHandler.java:51) ~[dubbo-2.6.0.jar:2.6.0]
at com.alibaba.dubbo.common.bytecode.proxy1.getPageInfoUsers(proxy1.java) ~[dubbo-2.6.0.jar:2.6.0]

 

通過這個我們也明白了dubbo服務在zookeeper註冊中心註冊的服務的生產者和消費者信息都存在zookeeper的節點上。　

還有可能是服務提供者有沒有註冊成爲Spring的bean

總結：

1 版本一致

2 類名一致

3 dubbo是全接口名稱匹配

4 zookeeper節點存儲數據

5 沒有配置爲spring的bean使用 這個太撈了

爲了方便我們把api單獨封裝在一起了 guns-api，避免了以上存在的錯誤