How to eliminate '[DUBBO] publishProvider interfaceName is empty ' error in class InMemoryWritableMetadataService ?? #6241
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
- I have checked the FAQ of this repository and believe that this is not a duplicate.
Environment
- Dubbo version: 2.7.6
- Operating System version: Win10
- Java version: 1.8
Steps to reproduce this issue
- import spring-cloud-starter-dubb
- config consumer:
dubbo:
consumer:
check: false
# timeout: 5000
protocol:
name: dubbo
port: -1
cloud:
subscribed-services: 'spring-cloud-alibaba-dubbo-provider'- config provider
dubbo:
scan:
base-packages: com.example.test.dubbo.provider.service
protocol:
name: dubbo
port: -1
registry:
address: spring-cloud://localhost
cloud:
subscribed-services: ''- run provider and consumer
Pls. provide [GitHub address] to reproduce this issue.
Expected Result
What do you expected from the above steps？
no error log
Actual Result
What actually happens?
Console print an error log:
2020-05-28 18:41:20.682 [spring-cloud-alibaba-dubbo-consumer,,,,] 22320 --- [ main] .a.d.m.s.InMemoryWritableMetadataService : [DUBBO] publishProvider interfaceName is empty . providerUrl: consumer://10.176.128.248/com.alibaba.cloud.dubbo.service.DubboMetadataService?application=spring-cloud-alibaba-dubbo-consumer&check=false&dubbo=2.0.2&generic=true&group=spring-cloud-alibaba-dubbo-provider&interface=com.alibaba.cloud.dubbo.service.DubboMetadataService&pid=22320&qos.enable=false&release=2.7If there is an exception, please attach the exception trace:
Just put your stack trace here!
Reference code:
public void publishServiceDefinition(URL providerUrl) {
try {
String interfaceName = providerUrl.getParameter(INTERFACE_KEY);
if (StringUtils.isNotEmpty(interfaceName)
&& !ProtocolUtils.isGeneric(providerUrl.getParameter(GENERIC_KEY))) {
Class interfaceClass = Class.forName(interfaceName);
ServiceDefinition serviceDefinition = ServiceDefinitionBuilder.build(interfaceClass);
Gson gson = new Gson();
String data = gson.toJson(serviceDefinition);
serviceDefinitions.put(providerUrl.getServiceKey(), data);
return;
}
logger.error("publishProvider interfaceName is empty . providerUrl: " + providerUrl.toFullString());
} catch (ClassNotFoundException e) {
//ignore error
logger.error("publishProvider getServiceDescriptor error. providerUrl: " + providerUrl.toFullString(), e);
}
}public static boolean isGeneric(String generic) {
return StringUtils.isNotEmpty(generic)
&& (GENERIC_SERIALIZATION_DEFAULT.equalsIgnoreCase(generic) /* Normal generalization cal */
|| GENERIC_SERIALIZATION_NATIVE_JAVA.equalsIgnoreCase(generic) /* Streaming generalization call supporting jdk serialization */
|| GENERIC_SERIALIZATION_BEAN.equalsIgnoreCase(generic)
|| GENERIC_SERIALIZATION_PROTOBUF.equalsIgnoreCase(generic)
|| GENERIC_RAW_RETURN.equalsIgnoreCase(generic));
}How to eliminate this error?