helloimpl.java

写给JSP初级程序员的书

package jdeveloper.rmi_iiop;

import javax.naming.*;

import java.rmi.RemoteException;
import java.rmi.RMISecurityManager;
//import java.rmi.server.UnicastRemoteObject;
import javax.rmi.PortableRemoteObject;

public class HelloImpl extends PortableRemoteObject
    implements Hello {

    public HelloImpl() throws RemoteException {
        super();
    }

    public String sayHello() {
        return  "Hello World!";
    }

    public static void main(String args[]) { 

        // Create and install a security manager 
        if (System.getSecurityManager() == null) { 
	    System.setSecurityManager(new RMISecurityManager()); 
        } 
        try { 
	    Hello obj = new HelloImpl(); 
	    // Bind this object instance to the name "HelloServer" 
	    
	    //***** old code for rmi
	    // Naming.rebind("HelloServer", obj); 
	    
	    //***** new code for rmi-iiop	    	    
	    Context initialNamingContext = new InitialContext();	    
	    initialNamingContext.rebind("HelloServer", obj); 
	    
	    System.out.println("HelloServer bound in registry"); 
        } catch (Exception e) { 
	    System.out.println("HelloImpl err: " + e.getMessage()); 
	    e.printStackTrace(); 
        } 
    } 
}