Problem in getting windows username

[tiijnar]

Hi,

To get windows username Im using the following code.

public class GetWindowUsername {
public String getUser() {
String userName = System.getProperty("user.name");
System.out.println("Window's Username: "+userName);
return userName;
}
}
 
public class TestUserName {
public static void main(String args[]) {
GetWindowUsername g = new GetWindowUsername();
String s = g.getUser();
System.out.println("UserName : "+s);
}
}
 

If I execute the above java class I get the windows username correct.

But when I use it in jsp like-

<% 
String s = System.getProperty("user.name");
out.println("Windows Username : "+s);
%>
 

I get the ouput as-
" Windows Username : SYSTEM "

I tried to call the "getUser()" in jsp using an object of "GetWindowUsername"
but even after that I got same output.

Im running the above jsp using Apache Tomcat 5.0 on my server machine.

When I run the same code on my local system using eclipse & Apache Tomcat v5.5, I get the output correct.

Can anyone solve my problem.

Thanks in advance
Tiijnar

[JosAH]

Does System.getenv("USERNAME") help?

kind regards,

Jos

ps. I deleted your other identical thread.

[tiijnar]

Hi JosAH,

Thank you for the solution but I still face the problem.

I have used System.getenv("USERNAME") on my server which uses Tomcat 5.0 to run jsp, but I got the username as NULL.

Does my problem depends on the usage of Tomcat 5.0, because when I use same code in a jsp which is run using Tomcat 5.5 I get correct result.

Can I have another solution for my problem..

Thanks in advance
Tiijnar

[JosAH]

@tiijnar
I'd blame version 5.0 for that; I just tested it on version 6.0.18 and there were no problems there either, i.e. I just got a valid user name back.

kind regards,

Jos

[tiijnar]

Hi JosAH,

I have installed Tomcat 5.5 on my server and run the same jsp. Even then Im getting same old output. i.e
If I use System.getProperty("user.name") ---> SYSTEM
If I use System.getenv("username") ---> null

My problem is not solved yet.

Can you provide me a new solution.

Regards,
Tiijnar

[JosAH]

It's USERNAME in capital letters although I don't think that matters much on a Windows box.

kind regards,

Jos

[tiijnar]

Hi,

In my java application I have following code to get windows username-

<%
String s1 = System.getProperty("user.name");
out.println("The Username : "s1" ");
String s2 = System.getenv("USERNAME");
out.println("The Username : "+s2);
%>

If I log in to my PC and execute it I get correct output for both the statements, But when I execute it on server machine(when I logged in) I get the output as-

The Username : SYSTEM The Username : null

I use Apache Tomcat 5.5 to run the jsp on both (PC & server) machines. One small difference is I use eclipse on my PC and I don't use eclipse on server (I think it doesn't matter).

But when I use the same code inside a java class I get correct output on both (PC & server) machines.

Can any one solve my problem.

Thanks in advance,
Tiijnar

[Dököll]

Greetings tiijnar!

Just guessing, but if you are intending to get credentials of a user on a Windows domain, you'll need to use LDAP. If this is the case, please continue to search here, if nothing, try Sun Microsystems for added input.

I would tell you but it is so involved. Rest assured however, Sun has a generic code you can use;-)

Hope this is what you needed...

Good luck!

Dököll

[JosAH]

@OP: I've merged your identical threads; there was (and is) no need to start two separate threads for one single question. If needed you can bump your thread (by posting a small reply to it yourself).

kind regards,

Jos