DatagramSocket socket = new DatagramSocket(9999); byte[] date = new byte[1024]; DatagramPacket packet = new DatagramPacket(date, date.length); System.out.println("服務(wù)端啟動(dòng)等待客戶連接。。。"); socket.receive(packet); String info = new String(date, 0, packet.getLength(), "utf-8"); System.out.println("我是服務(wù)器客戶端說(shuō)" + info);上面是代碼 我是連接硬件設(shè)備的只能接收 結(jié)果如下-------------------------服務(wù)端啟動(dòng)等待客戶連接。。。我是服務(wù)器客戶端說(shuō)^????58bc84636e3d257d70e2af77