Java编程

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Java

EJBCommandTarget.java：源码内容

							
package examples.command;
import javax.rmi.PortableRemoteObject;
import javax.ejb.CreateException;
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.naming.NamingException;
import java.rmi.RemoteException;
public class EJBCommandTarget implements CommandTarget {
    private CommandServerHome serverHome;
        public EJBCommandTarget()
        {
            try {
                Context ctx = new InitialContext(System.getProperties());
                Object obj = ctx.lookup("CommandServer");
                System.out.println(obj);
                this.serverHome = (CommandServerHome) PortableRemoteObject.narrow(obj, CommandServerHome.class );
            } catch (NamingException e) {
                e.printStackTrace();
            } catch (ClassCastException e) {
                e.printStackTrace();
            }
        }
    public Command executeCommand(Command aCommand) throws CommandException
    {
        try {
            CommandServer aCommandServer = serverHome.create();
            aCommand = aCommandServer.executeCommand(aCommand);
            return aCommand;
        } catch (Exception e)
        {
            throw new CommandException(e);
        }
      }
}

						