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TCPServer.java

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package network;

import java.io.IOException;

import java.io.PrintWriter;

import java.net.ServerSocket;

import java.net.Socket;

public class TCPServer {

public static void main(String[] args) throws Exception {

//1. 연결 요청만 담당하는 서버용 socket필요

//prototype(프로토타입) 방법 <-> singleton(싱글톤)

//필요할때마다 객체 생성 <-> 하나만 객체 생성 주소를 재사용

ServerSocket server = new ServerSocket(9100);

System.out.println("TCP 서버 시작됨");

System.out.println("클라이언트의 요청을 기다리는 중..");

int count = 0;

while (true) {

Socket socket = server.accept();

System.out.println(count + "번 클라이언트와의 연결 성공.");

count++;

PrintWriter out = new PrintWriter(socket.getOutputStream(), true);

out.println("i am a java programmer!!!");

}

}

}