HttpSession Interface helps in  a way to recognise a user across more than one page request. Servlet container uses this interface to create a session between HttpClient and HttpServer.

This Interface helps servlets to

• manipulate and view information about session
• binding information in the form of object with session so that that information can persist across many sites

We can obtain a HttpSession using getSession() of HttpServletRequest as

HttpSession session=request.getSession();  

In order to set attribute with this object by using setAttribute() which takes two argument as

session.setAttribute("uname",Test);  

In order to retrieve these value associated with session by using HttpSession using  getAttribute("uname") as

 String n=(String)session.getAttribute("uname");  

In this way , We can Implement HttpSeesion In Servlet. Thanks for Reading...