Java Socket 메시지 주고받기

Java Socket 메시지 주고받기

 

예시 01 / Example 01)

package server;
 
import java.io.IOException;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;
 
public class MainServer {
    public static void main(String[] args) {
        try {
            ServerSocket s_socket = new ServerSocket(8888);
            Socket c_socket = s_socket.accpet();
            
            OutputStream output_data = c_socket.getOutputStream();
 
            String sendDataString = "Welcome to My Server.";
            output_data.write(sendDataString.getBytes());
 
            s_socket.close();
            c_socket.close();
 
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
 

 

 

 

package client;
 
import java.io.IOException;
import java.io.InputStream;
import java.net.Socket;
 
public class MainClient {
    public static void main(String[] args) {
        try {
            Socket c_socket = new Socket("192.168.0.2", 8888);
 
            InputStream input_data = c_socket.getInputStream();
    
            byte[] receiveBuffer = new byte[100];
            input_data.read(receiveBuffer);
 
            System.out.println(new String(receiveBuffer));
 
            c_socket.close();
 
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}
 

 

 

 

실행 방법 / 결과

1. 서버 실행

2. 클라이언트 실행

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예시 02 / Example 02)

 

 

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