PROSAGA码农传奇-通讯技术-Android平板电脑和PC之间的通信

Android平板电脑和PC之间的通信

作者: =_=
发布时间: 2024-10-12 07:38:35 (7天前)
转自：

<div class =“post-text”itemprop =“text”>
  <P>
    您使用UDP连接和socket.receive（数据包）不等待数据包。如果缓冲区中没有数据包，则此操作会抛出异常。
尝试将您的代码更改为：
  </p>
   <pre>
    <code>
      @Override
    public void run() 
    {
        while (always==true)
        {
            while(start2==false)
            {
            }
            try 
            {
                InetAddress serverAddr = InetAddress.getByName("192.168.173.133");
                updatetrack("\nServer: Start connecting\n");
                //*DatagramSocket socket = new DatagramSocket(SERVERPORT2, serverAddr);/
                DatagramSocket socket = new DatagramSocket(SERVERPORT2);

while (always==true)
                {
                 try{
                byte[] buf = new byte[17];
                DatagramPacket packet = new DatagramPacket(buf, buf.length, serverAddr, SERVERPORT2);
                //*DatagramPacket packet = new DatagramPacket(buf, buf.length);/
                updatetrack("Server: Receiving\n");
                socket.receive(packet);
                updatetrack("Server: Message received: '" + new String(packet.getData()) + "'\n");
                updatetrack("Server: Succeed!\n");
                start2=false;
                }
                catch(Exception ex) {ex.printStackTrace();}
                }

} 
            catch (Exception e) 
            {
                updatetrack("Server: Error!\n");
                start2=false;
            }
        }
    }

</code>
  </pre>
</DIV>