5.TCP通信案例

public class TCPClient {
    public static void main(String[] args) throws IOException {
        Socket socket = new Socket( "127.0.0.1",8888);
        OutputStream os = socket.getOutputStream();
        os.write("你好服务器".getBytes());
        InputStream is = socket.getInputStream();
        byte[] bytes = new byte[1024];
        int len = is.read(bytes);
        System.out.println(new String(bytes,0,len));
        socket.close();

    }

}

 

服务端：

public class TCPServer {
    public static void main(String[] args) throws IOException {
        ServerSocket server = new ServerSocket(8888);
        Socket socket =server.accept();
        InputStream is = socket.getInputStream();
        byte[] bytes = new byte[1024];
        int len = is.read(bytes);
        System.out.println(new String(bytes,0,len));
        OutputStream os = socket.getOutputStream();
        os.write("收到谢谢".getBytes());
        socket.close();
        server.close();
    }

}