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Refactor UDP client-server communication flow

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This commit is contained in:
Xeon0X
2025-03-31 17:15:17 +02:00
parent e227ddc48c
commit aaebae7850
1 changed files with 41 additions and 25 deletions
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58
app/src/main/java/clientserver/ClientHandler.java
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@@ -11,10 +11,7 @@ public class ClientHandler {
int port = 6666;
boolean running = true;
DatagramSocket socketServer = null;
while (running) {
try {
// 1 - Création du canal
socketServer = new DatagramSocket(null);
// 2 - Réservation du port
InetSocketAddress address = new InetSocketAddress(
@@ -22,16 +19,40 @@ public class ClientHandler {
port
);
socketServer.bind(address);
} catch (Exception e) {
e.printStackTrace();
}
while (running) {
try {
// 1 - Création du canal
// 3 - Recevoir
byte[] recues = new byte[1024]; // tampon de réception
DatagramPacket receivedPacket = new DatagramPacket(
recues,
recues.length
);
socketServer.receive(receivedPacket);
InetAddress clientAddress = receivedPacket.getAddress();
int clientPort = receivedPacket.getPort();
System.out.println(
"Nouveau client : @" + clientAddress + ":" + clientPort
);
DatagramSocket socket = new DatagramSocket(); // Reserve new port
Thread thread = new Thread(() -> createThread(receivedPacket));
String response = "PORT:" + socket.getLocalPort();
System.out.println(response);
byte[] envoyees; // tampon d'émission
envoyees = response.getBytes();
DatagramPacket packetToSend = new DatagramPacket(
envoyees,
envoyees.length,
clientAddress,
clientPort
);
socketServer.send(packetToSend);
Thread thread = new Thread(() -> createThread(socket));
thread.start();
} catch (Exception e) {
System.err.println(e);
@@ -41,25 +62,20 @@ public class ClientHandler {
socketServer.close();
}
public static void createThread(DatagramPacket packet) {
public static void createThread(DatagramSocket socketClientThread) {
try {
InetAddress clientAddress = packet.getAddress();
int clientPort = packet.getPort();
System.out.println(
"Nouveau client : @" + clientAddress + ":" + clientPort
byte[] recues = new byte[1024]; // tampon de réception
DatagramPacket receivedPacket = new DatagramPacket(
recues,
recues.length
);
DatagramSocket socket = new DatagramSocket(); // Reserve new port
String response = "PORT:" + socket.getLocalPort();
byte[] envoyees; // tampon d'émission
envoyees = response.getBytes();
DatagramPacket packetToSend = new DatagramPacket(
envoyees,
envoyees.length,
clientAddress,
clientPort
socketClientThread.receive(receivedPacket);
String message = new String(
receivedPacket.getData(),
0,
receivedPacket.getLength()
);
socket.send(packetToSend);
System.out.println("Received message: " + message);
} catch (Exception e) {
System.err.println(e);
}