【Java】【网络编程】优化Socket连接

Socket优化

// 发送方
public class Demo1_SendSocket {
    public static void main(String[] args) throws IOException {
        Scanner sc = new Scanner(System.in); // 获取键盘输入流
        DatagramSocket socket = new DatagramSocket(); // 创建socket对象
    
        while (true) {
            String line = sc.nextLine(); // 获取键盘录入
            if ("quit".equals(line)) { // 如果输入quit则退出连接
                break;
            }
            DatagramPacket packet = // 创建数据包对象
                    new DatagramPacket(line.getBytes(), line.getBytes().length, InetAddress.getByName("127.0.0.1"),
                            6666);
            socket.send(packet); // 发送数据包
        }
        socket.close(); // 关闭socket对象
    }
}

// 接收方
public class Demo2_ReceiveSocket {
    public static void main(String[] args) throws Exception {
        DatagramSocket socket = new DatagramSocket(6666); // 创建socket连接
        DatagramPacket packet = new DatagramPacket(new byte[1024], 1024);
    
        while (true) {
            socket.receive(packet); // 接收消息
    
            byte[] arr = packet.getData(); // 提取数据
            int len = packet.getLength(); // 获取有效字节个数
            String ip = packet.getAddress().getHostAddress(); // 获取IP地址
            int port = packet.getPort(); // 获取端口号
            System.out.println(ip + ":" + port + ":" + new String(arr, 0, len));
        }
    }
}