TCP发送数据和接受数据

public static void main(String[] args) throws IOException {
    //1.创建客户端Socket对象
    Socket socket = new Socket("192.168.200.1",8802);

    //2.发送数据
    OutputStream os = socket.getOutputStream();
    os.write("你好,TCP,我来了".getBytes(StandardCharsets.UTF_8));

    //3.释放资源
    socket.close();
}

public static void main(String[] args) throws IOException {
    //1.创建ServerSocket并监听端口号
    ServerSocket ss = new ServerSocket(8802);

    //2.监听客户端请求
    Socket s = ss.accept();
    //3.接受数据
    InputStream is = s.getInputStream();
    byte[] bys = new byte[1024];
    int len = is.read(bys);
    System.out.println(new String(bys,0,len));
    //4.释放资源
    ss.close();
}