This is my program: public void doPsot(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { HttpSession session = req.getSession(); res.setContentType("text/html"); PrintWriter out = res.getWriter(); String btn = req.getParameter("btn"); String gotoPage = ""; String btn_name = session.getAttribute("btn"); if ((btn_name==null) || (btn_name.length()==0)){ gotoPage = "/agreement.jsp"; } out.close(); } I am using Visual age for java to write servlet codes and Websphere to write jsp codes. I have imported all the javax.servlet.   More>>

			

			public void doPsot(HttpServletRequest req, HttpServletResponse res)
			

			throws ServletException, IOException {
			

			

			HttpSession session = req.getSession();
			

			

			res.setContentType("text/html");
			

			PrintWriter out = res.getWriter();
			

			

			String btn = req.getParameter("btn");
			

			String gotoPage = "";
			

			

			String btn_name = session.getAttribute("btn");
			

			if ((btn_name==null) || (btn_name.length()==0)){
			

			gotoPage = "/agreement.jsp";
			

			}
			

			out.close();
			

			}