protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
    String temp=request.getRequestURI().toString();
    String actionName=temp.substring(temp.lastIndexOf("/")+1,temp.lastIndexOf("."));
        System.out.println(actionName);
        try {
        if(actionName.equals("Insert"))
        {
            StudentModel sObj= new StudentModel();

                String result = sObj.executeStudentInsert(request);
                request.getRequestDispatcher("Success.jsp").forward(request, response);             

        }
        else if(actionName.equals("Search"))
        {
            StudentModel sObj= new StudentModel();

                ArrayList arrayobj = sObj.executeStudentSearch(request);
                request.setAttribute("searchlist", arrayobj);
                request.getRequestDispatcher("Search.jsp").forward(request, response);              

        }
        else if(actionName.equals("Update"))
        {
            StudentModel sObj= new StudentModel();
            String s = sObj.executeStudentUpdate(request);
                request.getRequestDispatcher("Success.jsp").forward(request, response);             

        }
        else if(actionName.equals("Delete"))
        {
            StudentModel sObj= new StudentModel();
            String s = sObj.executeStudentDelete(request);
                request.getRequestDispatcher("Success.jsp").forward(request, response);             

        }
        } catch (ClassNotFoundException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } catch (SQLException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }

    }