title: How to implement single sign-on in my java project?
body: <p>I need to implement single sign-on in my java web application which can achieve the following features:
   All the computer joined in my domain smb.local , after user login in the computer, and type <a href="http://localhost:8080" rel="nofollow">http://localhost:8080</a>, my application know to use the current logined user to login into my web application.
  So what protocal should I implement ?  Or any reference ?
  Thanks very much !</p>