TCP发送数据、接收数据练习

public class ClientDemo {
    public static void main(String[] args) throws IOException {
        //创建客户端的Socket对象
        Socket s = new Socket("192.168.50.76",12345);

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

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

public class ServerDemo {
    public static void main(String[] args) throws IOException {
        //创建服务器端的Socket对象
        ServerSocket ss= new ServerSocket(12345);

        //监听客户端连接，返回一个Socket对象
        Socket s = ss.accept();

        //获取输入流，读数据，并把数据显示在控制台
        InputStream is = s.getInputStream();
        byte[] bys = new byte[1024];
        int len = is.read(bys);
        String data = new String(bys,0,len);
        System.out.println("数据是："+data);

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