最小的RMI例子(jdk6)

编写了一个最小的RMI例子(JDK1.6)

服务器端

package stg.server;

import java.rmi.Remote;
import java.rmi.RemoteException;

public interface Service extends Remote {
	String echo(String client) throws RemoteException;
}

 

 

package stg.server;

import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;

public class ServiceImpl extends UnicastRemoteObject implements Service {

	protected ServiceImpl() throws RemoteException {
		super();
	}

	public String echo(String client) throws RemoteException{
		return "From rmi Server: Hello! " + client;
	}
}

 

package stg.server;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;

import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;

public class Deploy {

	/**
	 * @param args
	 * @throws NamingException 
	 * @throws RemoteException 
	 */
	public static void main(String[] args) throws NamingException, RemoteException {
		Service service = new ServiceImpl();
		//registry		
		LocateRegistry.createRegistry(25002);
		//context
		Context namingCtx = new InitialContext();
		//bind
		namingCtx.bind("rmi://localhost:25002/service", service);			
	}
}

 客户端

 

package stg.client;

import javax.naming.Context;
import javax.naming.InitialContext;

import stg.server.Service;

public class Client {

	public static void main(String[] args) throws Exception {
		Context namingCtx = new InitialContext();
		Service service = (Service)namingCtx.lookup("rmi://192.168.8.2:25002/service");
		String echo = service.echo("StoneGreen");
		System.out.println(echo);
	}
}

  

评论

1 楼 gpogpogpo 2012-03-25  

Exception in thread "main" javax.naming.CommunicationException [Root exception is java.rmi.MarshalException: error marshalling arguments; nested exception is: 
	java.io.NotSerializableException: com.ccl.rmi.util.ServiceImpl]
	at com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:126)
	at com.sun.jndi.toolkit.url.GenericURLContext.bind(GenericURLContext.java:208)
	at javax.naming.InitialContext.bind(InitialContext.java:400)
	at com.ccl.rmi.util.Deploy.main(Deploy.java:30)
Caused by: java.rmi.MarshalException: error marshalling arguments; nested exception is: 
	java.io.NotSerializableException: com.ccl.rmi.util.ServiceImpl
	at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)
	at com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:120)
	... 3 more
Caused by: java.io.NotSerializableException: com.ccl.rmi.util.ServiceImpl
	at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1156)
	at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:326)
	... 5 more