javaudpjava 怎么用UDP实时接收数据？

java 怎么用UDP实时接收数据？

我自己写的代码： import?java.io.IOException; import?.DatagramPacket; import?.DatagramSocket; import?Address; import?.SocketException; import?.UnknownHostException; public?class?UdpRecvDemo { ????public?static?void?main(String[]?args)?throws?IOException ????{ ????????Recv(); ????} ????public?static?void?Recv()?throws?IOException ????{ ????????System.out.println("接受开始......"); ????????DatagramSocket?ds?=?new?DatagramSocket(3388); ????????while(true) ????????{ ????????????byte[]buf?=?new?byte[1024]; ????????????DatagramPacket?dp?=?new?DatagramPacket(buf,buf.length); ????????????ds.receive(dp); ????????????System.out.println(ds); ????????????String?ip?=?dp.getAddress().getHostAddress(); ????????????int?port?=?dp.getPort(); ????????????String?text?=?new?String(dp.getData(),0,dp.getLength()); ????????????if(text.equals("exit")) ????????????????{ ????????????????????System.out.println(ip+"退出会话......"); ????????????????????break; ????????????????} ????????????System.out.println(ip+":"+port+"===>me?"+text); ????????} ????????ds.close(); ????} }