TCP客户端服务器端简单模拟Java编程

public class TCPrecevierDemo {
    public static void main(String[] args) throws IOException {
        //创建服务器端套接字对象
        ServerSocket ss = new ServerSocket(10045);
        //监听客户端连接，获取一个对应的套接字对象
        Socket s = ss.accept();
        //获取输入流对象，读数据
        InputStream is = s.getInputStream();
        byte[] bys=new byte[1024];
        int len = is.read(bys);  //未读到前阻塞
        String comment = new String(bys,0,len);

        String ip = s.getInetAddress().getHostAddress();
        System.out.println(ip+"发来了："+comment);

        //服务器给客户端发回一个反馈信息
        OutputStream os = s.getOutputStream();
        os.write("数据已收到".getBytes());

        //释放资源
        s.close();
        ss.close();
    }
}

public class TcpsendDemo {
    public static void main(String[] args) throws IOException {
        //创建Tcp发送端套接字对象
        Socket s = new Socket("192.168.42.194", 10045);

        //获取输出流,并写数据
        OutputStream os = s.getOutputStream();
        os.write("hello,TCP,我来了！".getBytes());

        //获取输入流，得到反馈信息
        InputStream is = s.getInputStream();
        byte[] bys = new byte[1024];
        int len = is.read(bys);         //未读到前阻塞
        String respond = new String(bys, 0, len);

        System.out.println("Client: "+ respond);

        //释放资源
        s.close();
    }
}