Java RMI quick and dirty

Posted on by eitch

Your object which will be accessible through RMI must meet the following requirements:

  • have its own interfaces which extends java.rmi.Remote
  • all methods must “throws RemoteException“
  • all returned returned objects must implement java.io.Serializable

Starting a RMI server:

  • Set system property: System.setProperty("java.rmi.server.hostname", "hostname");
  • create registry: Registry registry = LocateRegistry.createRegistry(1099);
  • export Object: RemotableObject stub = (RemotableObject) UnicastRemoteObject.exportObject(remoteObject, 0);
  • bind object: registry.rebind("RemoteName", stub);

Remote call:

  • get Registry: Registry registry = LocateRegistry.getRegistry("hostname");
  • get Remote object: RemotableObject remoteObject = (RemotableObject) registry.lookup("RemoteName");
  • call method: remoteObject.remoteMethod();