Hi Erdem,
There's no way that code is going to print any IP address.
I see you're calling the session.getAttribute("ip"); which is not set anywhere
in that piece of code.
You may want to have the attribute set first before making use of it.
--
Evans
http://www.javawug.org
----- Original Message -----
From: "Erdem Bozdağ" <erdemboz...@su.sabanciuniv.edu>
To: <java-ee-j2ee-programming-with-passion@googlegroups.com>
Sent: Tuesday, March 31, 2009 2:05 PM
Subject: [java ee programming] what is wrong in this code
i am trying to gain user's ip address via listenner but ı couldnt success
public void attributeAdded(HttpSessionBindingEvent arg0) {
try {
FileWriter file = new FileWriter("C:/authentication_log.txt");
session = arg0.getSession();
String ip = (String) session.getAttribute("ip");
file.write(ip +": "+new Date()+"\n");
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
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