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Send conected clients via udp

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This commit is contained in:
Guilherme Werner
2023-06-15 14:36:15 -03:00
parent ae672bf4e7
commit eeb468b337
2 changed files with 47 additions and 5 deletions
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17
src/main/java/org/example/ClientApp.java
View File

@ -20,6 +20,7 @@ public class ClientApp extends JFrame {
private JTextArea chatArea;
private JTextField messageField;
private JButton sendButton;
private JButton listButton;
private Socket tcpSocket;
private DatagramSocket udpSocket;
@ -54,6 +55,15 @@ public class ClientApp extends JFrame {
});
bottomPanel.add(sendButton, BorderLayout.EAST);
listButton = new JButton("List");
listButton.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
requestConnectedClients();
}
});
bottomPanel.add(listButton, BorderLayout.WEST);
add(bottomPanel, BorderLayout.SOUTH);
setVisible(true);
@ -81,6 +91,7 @@ public class ClientApp extends JFrame {
public void run() {
try {
String serverMessage;
out.println(clientName);
while ((serverMessage = in.readLine()) != null) {
chatArea.append(serverMessage + "\n");
}
@ -127,7 +138,7 @@ public class ClientApp extends JFrame {
String message = messageField.getText().trim();
if (!message.isEmpty()) {
out.println(clientName + ": " + message);
//sendUDPMessage(clientName + ": " + message);
// sendUDPMessage(clientName + ": " + message);
messageField.setText("");
chatArea.append("You: " + message + "\n");
}
@ -144,6 +155,10 @@ public class ClientApp extends JFrame {
}
}
private void requestConnectedClients() {
sendUDPMessage("GET_CLIENTS");
}
public static void main(String[] args) {
if (args.length > 0) {
SwingUtilities.invokeLater(new Runnable() {

35
src/main/java/org/example/ServerApp.java
View File

@ -6,6 +6,7 @@ import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;
@ -86,12 +87,15 @@ public class ServerApp {
public void run() {
try {
byte[] buffer = new byte[1024];
DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
while (true) {
DatagramPacket packet = new DatagramPacket(buffer, buffer.length);
datagramSocket.receive(packet);
String message = new String(packet.getData(), 0, packet.getLength());
broadcastTCPMessage(message, null);
String request = new String(packet.getData(), 0, packet.getLength());
if (request.equals("GET_CLIENTS")) {
sendClientList(packet.getAddress(), packet.getPort());
}
}
} catch (IOException e) {
e.printStackTrace();
@ -99,6 +103,20 @@ public class ServerApp {
datagramSocket.close();
}
}
private void sendClientList(InetAddress address, int port) {
StringBuilder clientList = new StringBuilder();
for (ClientHandler client : clients) {
clientList.append(client.getClientName()).append("\n");
}
byte[] buffer = clientList.toString().getBytes();
DatagramPacket packet = new DatagramPacket(buffer, buffer.length, address, port);
try {
datagramSocket.send(packet);
} catch (IOException e) {
e.printStackTrace();
}
}
}
private class ClientHandler extends Thread {
@ -106,11 +124,16 @@ public class ServerApp {
private DatagramSocket datagramSocket;
private BufferedReader in;
private PrintWriter out;
private String clientName;
public ClientHandler(Socket socket) {
this.clientSocket = socket;
}
public String getClientName() {
return clientName;
}
@Override
public void run() {
try {
@ -118,6 +141,9 @@ public class ServerApp {
out = new PrintWriter(clientSocket.getOutputStream(), true);
datagramSocket = new DatagramSocket();
clientName = in.readLine();
broadcastTCPMessage(clientName + " entrou no chat.", this);
String clientMessage;
while ((clientMessage = in.readLine()) != null) {
broadcastTCPMessage(clientMessage, this);
@ -143,7 +169,8 @@ public class ServerApp {
public void sendUDPMessage(String message) {
try {
byte[] buffer = message.getBytes();
DatagramPacket packet = new DatagramPacket(buffer, buffer.length, clientSocket.getInetAddress(), UDP_PORT);
DatagramPacket packet = new DatagramPacket(buffer, buffer.length, clientSocket.getInetAddress(),
UDP_PORT);
datagramSocket.send(packet);
} catch (IOException e) {
e.printStackTrace();