diff --git a/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/IMessageHandler.java b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/IMessageHandler.java
new file mode 100644
index 00000000..ce4cec02
--- /dev/null
+++ b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/IMessageHandler.java
@@ -0,0 +1,8 @@
+package com.pqt.server.controller;
+
+import com.pqt.core.entities.messages.Message;
+
+//TODO écrire Javadoc
+public interface IMessageHandler {
+    Message handleMessage(Message message);
+}
diff --git a/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/SimpleMessageHandler.java b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/SimpleMessageHandler.java
new file mode 100644
index 00000000..67de608e
--- /dev/null
+++ b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/controller/SimpleMessageHandler.java
@@ -0,0 +1,51 @@
+package com.pqt.server.controller;
+
+import com.pqt.core.entities.messages.Message;
+import com.pqt.core.entities.messages.MessageType;
+import com.pqt.server.module.account.AccountService;
+import com.pqt.server.module.client.ClientService;
+import com.pqt.server.module.sale.SaleService;
+import com.pqt.server.module.state.ServerStateService;
+import com.pqt.server.module.statistics.StatisticsService;
+import com.pqt.server.module.stock.StockService;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class SimpleMessageHandler implements IMessageHandler {
+
+    private AccountService accountService;
+    private SaleService saleService;
+    private StatisticsService statisticsService;
+    private StockService stockService;
+    private ClientService clientService;
+    private ServerStateService serverStateService;
+
+    private Map<MessageType, IMessageProcess> queryHandlers;
+
+    public SimpleMessageHandler() {
+        serverStateService = new ServerStateService();
+        accountService = new AccountService();
+        clientService = new ClientService();
+        saleService = new SaleService();
+        stockService = new StockService();
+        statisticsService = new StatisticsService(stockService, saleService);
+
+        queryHandlers = new HashMap<>();
+        //TODO ajouter callables à la map
+    }
+
+    @Override
+    public Message handleMessage(Message message) {
+
+        if(queryHandlers.containsKey(message.getType()))
+            return queryHandlers.get(message.getType()).execute(message);
+
+        return null;
+    }
+
+    //TODO ajouter Javadoc
+    private interface IMessageProcess{
+        Message execute(Message request);
+    }
+}
diff --git a/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/servlets/QueryServlet.java b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/servlets/QueryServlet.java
new file mode 100644
index 00000000..e8626bf6
--- /dev/null
+++ b/Workspace/server/src/main/WEB-INF/classes/com/pqt/server/servlets/QueryServlet.java
@@ -0,0 +1,37 @@
+package com.pqt.server.servlets;
+
+import com.pqt.core.communication.GSonMessageToolFactory;
+import com.pqt.core.communication.IMessageToolFactory;
+import com.pqt.core.entities.messages.Message;
+import com.pqt.server.controller.IMessageHandler;
+import com.pqt.server.controller.SimpleMessageHandler;
+
+import javax.servlet.ServletException;
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+
+//TODO ajouter logs
+@WebServlet(name = "QueryServlet", urlPatterns = "/")
+public class QueryServlet extends HttpServlet {
+    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        executeServletProcess(request, response);
+    }
+
+    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        executeServletProcess(request, response);
+    }
+
+    private void executeServletProcess(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
+        IMessageToolFactory messageToolFactory = new GSonMessageToolFactory();
+        IMessageHandler msgHandler = new SimpleMessageHandler();
+
+        if (request.getParameter("message") != null) {
+            Message resp = msgHandler.handleMessage(messageToolFactory.getObjectParser(Message.class).parse(request.getParameter("message")));
+
+            response.getWriter().write(messageToolFactory.getObjectFormatter(Message.class).format(resp));
+        }
+    }
+}