Files
HW-10-Socket-Programming/src/main/java/com/university/chat/Client/chatClient.java
T
2026-07-18 00:04:31 +03:30

135 lines
3.9 KiB
Java

package com.university.chat.Client;
import com.university.chat.Common.ChatMessage;
import com.university.chat.Common.FileMessage;
import com.university.chat.Common.MessageType;
import java.io.File;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.nio.file.Files;
import java.util.Scanner;
public class chatClient {
public static void main(String[] args) {
try {
Socket socket = new Socket("localhost", 8080);
ObjectOutputStream out = new ObjectOutputStream(socket.getOutputStream());
ObjectInputStream in = new ObjectInputStream(socket.getInputStream());
Scanner scanner = new Scanner(System.in);
System.out.print("Enter username: ");
String username = scanner.nextLine();
ChatMessage login = new ChatMessage(
MessageType.LOGIN,
username,
"",
""
);
out.writeObject(login);
new Thread(new ServerListener(in)).start();
while (true) {
try {
String text = scanner.nextLine();
if (text.startsWith("/msg ")) {
String[] parts = text.split(" ", 3);
if (parts.length < 3) {
System.out.println("Wrong command.");
continue;
}
ChatMessage message = new ChatMessage(
MessageType.PRIVATE_MESSAGE,
username,
parts[1],
parts[2]
);
out.writeObject(message);
out.flush();
}
else if (text.equals("/users")) {
ChatMessage message = new ChatMessage(
MessageType.USER_LIST,
username,
"",
""
);
out.writeObject(message);
out.flush();
}
else if (text.startsWith("/sendfile ")) {
String[] parts = text.split(" ", 3);
if (parts.length < 3) {
System.out.println("Wrong command.");
continue;
}
File file = new File(parts[2]);
if (!file.exists()) {
System.out.println("File not found.");
continue;
}
byte[] data = Files.readAllBytes(file.toPath());
FileMessage fileMessage = new FileMessage(
username,
parts[1],
file.getName(),
data
);
out.writeObject(fileMessage);
out.flush();
System.out.println("File sent.");
}
else {
ChatMessage message = new ChatMessage(
MessageType.PUBLIC_MESSAGE,
username,
"",
text
);
out.writeObject(message);
out.flush();
}
} catch (Exception e) {
System.out.println("Command failed.");
}
}
} catch (Exception e) {
}
}
}