Rajout d'un try catch pour l'erreur de l'id

WEB-INF/src/controleur/MessageController.java

@@ -27,16 +27,23 @@ public class MessageController extends HttpServlet {
         switch (action){
             case "send":
                 String contenue = req.getParameter("message");
-                DaoMessage daoMessage = new DaoMessage();
-                int idThread = Integer.parseInt(req.getParameter("thread"));
-                Message message = new Message(0, username, idThread, contenue, LocalDateTime.now());
-                daoMessage.create(message);
-                vue = "thread?action=open&id=" + idThread;
+                try {
+                    int idThread = Integer.parseInt(req.getParameter("thread"));
+
+                    if (contenue != null && !contenue.isEmpty()) {
+                        DaoMessage daoMessage = new DaoMessage();
+                        Message message = new Message(0, username, idThread, contenue, LocalDateTime.now());
+                        daoMessage.create(message);
+                    }
+                    vue = "thread?action=open&id=" + idThread;
+                } catch (NumberFormatException exception){
+                    req.setAttribute("error", "Ne changez pas l'url vous même!");
+                    vue = "/WEB-INF/error.jsp";
+                }
                 break;
             default:
                 vue = "";
         }
         req.getRequestDispatcher(vue).forward(req, resp);
-
     }
 }