package socket;

import java.io.IOException;
import java.io.OutputStream;
import java.net.InetAddress;
import java.net.Socket;
import java.net.UnknownHostException;

/**
 * Copyright (C), 2018-2021, Mr.Lin
 * Author: Mr.Lin
 * Date: 2021/12/1 21:46
 * FileName: SocketAPI01Client
 * Description: 客戶端
 */
public
 
 class SocketAPI01Client {
    public static void main(String[] args) throws IOException {

        //連線本機的埠，如果連線成功則返回socket物件
        Socket socket = new Socket(InetAddress.getLocalHost(),6666);
        System.out.println("返回socket="+socket);
//連線上後通過socket.getOutputStream()得到和socket 物件關聯的輸出流物件
        OutputStream os = socket.getOutputStream();
        os.write(
 
"hello.server".getBytes());
        os.close();
        socket.close();
        System.out.println("客戶端退出。。。。");

    }
}

package socket;

import java.io.IOException;
import java.io.InputStream;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * Copyright (C), 2018-2021, Mr.Lin
 * Author: Mr.Lin
 * Date: 2021/12/1 21:38
 * FileName: SocketAPI01Server
 * Description:伺服器端
 
 
*/
public class SocketAPI01Server {
    public static void main(String[] args) throws IOException {
        //在本機的6666埠監聽，等待連線
        //要求在本機沒有其他服務佔用6666埠
        ServerSocket serverSocket = new ServerSocket(6666);
        System.out.println("埠6666等待連線。。。");
//當客戶端連線則返回socket物件
        Socket socket = serverSocket.accept();
        System.out.println("物件已連線。。。");
//通過 socket.getInputStream()讀取客戶端寫入到 資料通道的資料
        InputStream is = socket.getInputStream();
        //IO讀取
        byte [] bytes=new byte[1024];
        int readLen=0;
        while ((readLen=is.read(bytes)) !=-1){
            System.out.println(new String(bytes,0,readLen));
        }
        is.close();
        socket.close();
        serverSocket.close();


    }
}