Authentication of XI users using Webdynpro

Hi,
Here is a scenario that I am dealing with currently.Appreciate any help.
There is a XI system which contains some data in the form of customer tables.
A webdynpro for Java application needs to built which get the data from XI and displays it in the browser.This webdynpro application is to run on WAS6.40 of the XI system.
All the users of the system would be created using the user managemnt function of the XI.
Now the issue is:
How to authenticate the users created in XI from the system developed in webdynpro.
Please remeber that there is no EP here.Only an XI system and and webdypro application.
regards,
Bhupesh

Bhupesh,
if you set this parameter to true, the Standard-Netweaver Logon-Screen appears before your application, if the user wasn't authenticated yet against the UME of the WAS. After positive authentication, you'll be redirected to your application (and you can e.g. use the IUSER-Interface within your application to get the Username like this:
IWDClientUser user;
try {
user = WDClientUser.getCurrentUser();
String authenticated_User = user.getSAPUser().getUniqueName().toUpperCase());
I'm not quite sure, why you still want to send the user/pw to the XI. I understood your application and the XI are running on the same WAS...
You are able to change the Standard-Logon-Screen (http://help.sap.com/saphelp_nw2004s/helpdata/en/23/c0e240beb0702ae10000000a155106/frameset.htm)
kr, achim

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