How to get username of currently logged user on client machine

[Shobhit Khandelwal]

Hi,
In my jsp, I require cuurently looged in username in one of the textbox and for this I am using System.getProperty("user.name") but when I access the application from some other machine(client) then this still shows username of logged In user on server. I want this field to be change according to the client machine userId everytime.
Kindly suggest the possible ways.

Thanks
Shobhit

[Ulf Dittmer]

That property will always reflect the user on the server, so it's no use for what you're trying to do.

Is this a web app for which a login is required? If so, you could use ServletRequest.getRemoteUser for this.

[Shobhit Khandelwal]

Yes this is a web app but login is not needed and so is the requirement given to me.
Is there any other way to deal with this?

[Paul Clapham]

Your most likely chance of success would be to have an applet which gets that system property from the client and somehow sends it to the server.

[Shobhit Khandelwal]

Hi All,
Thanks for your replies. I got the solution of this problem in javascript. For those who don't want login page or credentials to be filled by the client, I am providing my javascript function here :

  function getUserName(){
	var wmi = GetObject("winmgmts:{impersonationLevel=Impersonate}\\\\.\\root\\cimv2");
	var query = "Select * From win32_computersystem";
	e = new Enumerator(wmi.ExecQuery(query));
	var data = e.item();
	alert("UserName is" + data.UserName);
	var username = data.UserName;
	document.foo.engineer.value = username;
	document.foo.engineerName.value = username;	
}  

We can access any win32 class through javascript like this and can get whatever system propeerty we want. I mean if it is accessible through cmd then it can be done through javascript like above code.

[Ulf Dittmer]

Well, you didn't say that a solution that works only on one particular browser on one particular operating system was acceptable. That's generally not the case with web applications (and actually defeats a large part of their purpose).

[Shobhit Khandelwal]

Thanks Ulf, I got your point. Yes, I admit that this code is operating system(windows) and browser specific(IE and not sure about other browsers)

[Anwarul Yaseen Shahul Hameed]

Ulf Dittmer wrote:That property will always reflect the user on the server, so it's no use for what you're trying to do.

Is this a web app for which a login is required? If so, you could use ServletRequest.getRemoteUser for this.

Can you give some example to use ServletRequest.getRemoteUser

[Ulf Dittmer]

Start here: http://www.coderanch.com/how-to/java/ServletsFaq#security