java.lang.NoSuchMethodException : $Proxy205. 调度(int，my.package.beans.AdapterHeader，my.package.beans.AdapterInfo)

Question

有人遇到过吗？

在服务器端，在我的 OSGi 应用程序中，我正在导出服务。这是 spring 文件代码:

    <!-- RMI SERVICE EXPORT -->
<bean class="org.springframework.remoting.rmi.RmiServiceExporter">
    <property name="serviceName" value="IntegrationRemoteService" />
    <property name="service" ref="integrationExecutor" />
    <property name="serviceInterface" value="my.package.services.IntegrationService" />
    <property name="registryPort" value="$system{integration.port}" />
</bean>

<!-- INTEGRATION EXECUTOR -->
<bean id="integrationExecutor" class="my.package.engine.IntegrationServiceExecutor">
    <property name="integrationServiceImpl" ref="integrationEngine" />      
</bean>

我的 IntegrationServiceExecutor 类扩展了 IntegrationService 接口(interface)并实现了方法:

public class IntegrationServiceExecutor implements IntegrationService {
...
@Override
public GenericResult dispatch(int serviceCode, AdapterHeader adapterHeader,    AdapterInfo  adapterInfo) {

IntegrationService 接口(interface)在另一个组件中定义，这个相同的组件在客户端的 .war 中使用。在该组件中，我还实现了通过 .war 调用的远程请求

...
import org.springframework.aop.framework.ProxyFactory;
import org.springframework.remoting.rmi.RmiProxyFactoryBean;
...

    public class GenericRmiFactory implements RemoteConnectionFactory {

private ProxyFactory proxyFactory;

public GenericRmiFactory(ServerTransport transport) throws ClassCastException, IllegalFormatException {
    RmiServerTransport rmiTransport = (RmiServerTransport) transport;

    RmiProxyFactoryBean rmiProxyFactoryBean = new RmiProxyFactoryBean();

    rmiProxyFactoryBean.setLookupStubOnStartup( false );
    rmiProxyFactoryBean.setCacheStub( false );
    rmiProxyFactoryBean.setRefreshStubOnConnectFailure( true );
    rmiProxyFactoryBean.setServiceUrl(String.format("rmi://%s:%s/%s", rmiTransport.getHostname(), rmiTransport.getPort(), rmiTransport.getServiceName() ));
    rmiProxyFactoryBean.setServiceInterface(rmiTransport.getRemoteInterface());
    rmiProxyFactoryBean.afterPropertiesSet();

    this.proxyFactory = new ProxyFactory(rmiTransport.getRemoteInterface(), rmiProxyFactoryBean);
}

private ProxyFactory getproxyFactory() {
    return proxyFactory;
}

@Override
public Object getRemoteService() {
    return getproxyFactory().getProxy();
}
}

我是这样调用远程服务的:

    ...
    IntegrationService integrationService = (IntegrationService) getGenericRemoteFactory().getRemoteService();
integrationService.dispatch(myInt, myAdapterHeader, myAdapterInfo);
...

最后一条语句抛出异常:

Invocation of method [public abstract my.package.result.GenericResult my.package.services.IntegrationService.dispatch(int,my.package.beans.AdapterHeader,my.package.beans.AdapterInfo)] failed in RMI service [rmi://127.0.0.1:2260/IntegrationRemoteService]; nested exception is java.lang.NoSuchMethodException: $Proxy205.dispatch(int, my.package.beans.AdapterHeader, my.package.beans.AdapterInfo)

我在这里缺少什么吗？提前致谢，凯伦

Answer 1

我以前见过这个。您必须将“throws RemoteException”添加到您的接口(interface)方法中。客户端抛出NoSuchMethodException，其实是在提示没有RemoteException。