Build a Website

I have a basic user authentication, and after user logged into system in [login to view URL], the new webpage [login to view URL] is opening. I attached the sourcecode of [login to view URL] to this message. I want you to fill the part: <script type="text/javascript"> function info() { alert("UserID : "+"???????????????????????"); } </script> to get the which user logged in. for example: I need to get it like an object to print like: <script type="text/javascript"> function info() { alert("UserID : "+[login to view URL]); alert("User Name : "+[login to view URL]); alert("User Surname : "+[login to view URL]); alert("User eMail : "+[login to view URL]); } </script> I can share the orginal project with you when you get the project. The technologies you can use: - Java - Spring MVC - Javascript - HTML - AngularJS