단방향 실습

package ex17.oneway;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.ServerSocket;
import java.net.Socket;

public class Server {
    public static void main(String[] args) {
        try {
            ServerSocket serverSocket = new ServerSocket(10000);
            Socket socket = serverSocket.accept(); // 리스너 (누가 요청하는지 확인)
            System.out.println("클라이언트 연결됨");

            BufferedReader br = new BufferedReader(
                    new InputStreamReader(socket.getInputStream(), "UTF-8")
            );

            while (true) {
                String msg = br.readLine();

                if (msg == null) break;

                System.out.println(msg);
            }


        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}

package ex17.oneway;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.net.Socket;

public class Client {
    public static void main(String[] args) {
        // localhost = 127.0.0.1 (루프백)
        try {
            Socket socket = new Socket("127.0.0.1", 10000);

            // 가나다라abc
            BufferedWriter bw = new BufferedWriter(
                    new OutputStreamWriter(socket.getOutputStream(), "UTF-8")
            );

            bw.write("msg1" + "\n");
            bw.write("msg2" + "\n");
            bw.flush();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}