java - java - 如何通过UDP连接从java中的数据包中读取序列号？

Question

我不知道如何让程序的服务器端从包含文本的数据报中读取序列号（整数）。服务器端正在获取文本而不是数字，我需要它将数字返回给客户端....

我对此既陌生又糟糕：-S

DatagramSocket serverSocket = new DatagramSocket(9876);

// Set up byte arrays for sending and receiving data
byte[] receiveData = new byte[1024];
byte[] sendData = new byte[1024];
            
// Loop to check for connections
while(true) {

    // Get received packet
    DatagramPacket receivePacket = new DatagramPacket(receiveData, receiveData.length);
    serverSocket.receive(receivePacket);

    //Get message from packet
    String message = new String(receivePacket, receivePacket.getLength());

}

标签： javaudp