Java通信程序TCP

public class ClientDemo {
    public static void main(String[] args) throws IOException {
//创建客户端的Socket对象(Socket)
//Socket(String host, int port) 创建流套接字并将其连接到指定主机上的指定端口号
        Socket s = new Socket("192.168.1.66",10000);
//获取输出流，写数据
//OutputStream getOutputStream() 返回此套接字的输出流
        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)
//ServerSocket(int port) 创建绑定到指定端口的服务器套接字
        ServerSocket ss = new ServerSocket(10000);
//Socket accept() 侦听要连接到此套接字并接受它
        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();
    }
}