Mensaje crear mensaje sesion

Source Packages/servlet/crearMensajeSV.java

@@ -36,7 +36,13 @@ public class crearMensajeSV extends HttpServlet {
     protected void processRequest(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
         response.setContentType("text/html;charset=UTF-8");
-        
+        HttpSession session = request.getSession(false);
+        if(session==null){
+            String url = "/inicioSesion.html";
+            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
+            dispatcher.forward(request, response);
+        }else{
+            String userName = (String) session.getAttribute("usuario");
             String destinatario = request.getParameter("destinatario");
             String asunto = request.getParameter("asunto");
             String texto = request.getParameter("texto");
@@ -52,9 +58,6 @@ public class crearMensajeSV extends HttpServlet {
             mensajeEnv.setLeido(1);
             mensajeEnv.setTipo("Enviado");
 
-        HttpSession sesion = request.getSession();
-        String userName = (String) sesion.getAttribute("usuario");
-        
             mensajeEnv.setAutor(userName);
             mensajeEnv.setDestinatario(destinatario);
 
@@ -76,6 +79,7 @@ public class crearMensajeSV extends HttpServlet {
             RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
             dispatcher.forward(request, response);
         }
+    }
 
     // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
     /**

Source Packages/servlet/mensajeSV.java

@@ -13,6 +13,7 @@ import javax.servlet.annotation.WebServlet;
 import javax.servlet.http.HttpServlet;
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
 import modelo.Mensaje;
 
 /**
@@ -34,7 +35,13 @@ public class mensajeSV extends HttpServlet {
     protected void processRequest(HttpServletRequest request, HttpServletResponse response)
             throws ServletException, IOException {
         response.setContentType("text/html;charset=UTF-8");
-        
+                HttpSession session = request.getSession(false);
+        if(session==null){
+            String url = "/inicioSesion.html";
+            RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
+            dispatcher.forward(request, response);
+        }else{
+            String userName = (String) session.getAttribute("usuario");
             int idMensaje = Integer.parseInt(request.getParameter("idMensaje"));
             String tipo = request.getParameter("tipo");
 
@@ -55,6 +62,7 @@ public class mensajeSV extends HttpServlet {
             RequestDispatcher dispatcher = getServletContext().getRequestDispatcher(url);
             dispatcher.forward(request, response);
         }
+    }
 
     // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
     /**