Socket基础

服务端

 

public class MyService {
    public static void main(String[] args) throws IOException {
        ServerSocket socketService = new ServerSocket(9999);
        Socket socket = socketService.accept();
        System.out.println("等待客户端连接");
        InputStream inputStream = socket.getInputStream();
        byte[] ss=new  byte[1024];
        inputStream.read(ss);
        System.out.println("接收到客户端的数据"+new String(ss));

        //向客户端发起反馈
        OutputStream out = socket.getOutputStream();
        out.write("我已接受到你的信息".getBytes());
        out.close();
        inputStream.close();
        socket.close();


    }
}
客户端

public class MyClient {
    public static void main(String[] args) throws IOException {
        InetAddress address = InetAddress.getByName("127.0.0.1");
        Socket socket = new Socket(address,9999);
        OutputStream outputStream = socket.getOutputStream();
        String ss="Hello";
        outputStream.write(ss.getBytes());
        //获取服务端反馈的消息
        InputStream in = socket.getInputStream();
        byte[] s=new  byte[1024];
        in.read(s);
        System.out.println("获取到反馈的消息"+new String(s
        ));
        outputStream.close();
        in.close();
        socket.close();


    }
}