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Easy Learn Java: Programming Articles, Examples and Tips - Page 109


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I work with RMI now and need to implement a new feature into software that was w

Go to all tips in Networking

Question: I work with RMI now and need to implement a new feature into software that was written by another people one year ago. I need to find out: what is IP address of a client and then connect or reject the connection. I do not want to add methods to client... It must be the way how to find out it using RMI methods. Unfortunately I did not find with first attempt.

Answer: Your RMI server extends UnicastRemoteObject that extends java.rmi.server.RemoteServer.
That class (RemoteServer) has public static String getClientHost() method.
When called from a thread actively handling a remote method invocation the hostname of the client is returned.

Then use public static InetAddress getByName(String host) method of java.net.InetAddress
Be aware that you do need to try to create an instance of InetAddress. It is static.
Just get it!

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Our older tips: March 22, 2001 - October 21, 2002 READ HERE
All published and not published on the site tips read HERE



6 comments | Printer Friendly Page  Send to a Friend | Score: 0
Posted by jalex on Thursday, November 13, 2003 (00:00:00) (3502 reads)

I would like to create a class that can execute jscripts. Does any one know if t

Go to all tips in General Java

Question: I would like to create a class that can execute jscripts. Does any one know if there is such class?

Answer: Yes, it is Rhino. Rhino is an open-source implementation of JavaScript written entirely in Java. It is typically embedded into Java applications to provide scripting to end users.
Be aware that it has some limitations, Rhino is an implementation of the core language only and doesn't contain objects or methods for manipulating HTML documents.

More read about Rhino here:
http://www.mozilla.org/rhino/

*******************************************
Our older tips: March 22, 2001 - October 21, 2002 READ HERE
All published and not published on the site tips read HERE



9 comments | Printer Friendly Page  Send to a Friend | Score: 0
Posted by jalex on Wednesday, November 12, 2003 (00:00:00) (2642 reads)

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