public class UdpRecv
{
/** Socket接收消息(先启动接收端)
* <功能详细描述>
* @param args
* @throws Exception
* @see [类、类#方法、类#成员]
*/
public static void main(String[] args)
throws Exception
{
//端口号要是发送方对应的端口号
DatagramSocket ds = new DatagramSocket(8866);
byte[] b = new byte[1024];
DatagramPacket dp = new DatagramPacket(b, 1024);
ds.receive(dp);
String strRecv =
new String(dp.getData(), 0, dp.getLength()) + " from " + dp.getAddress().getHostAddress() + ":" + " :"
+ dp.getPort();
System.out.println(strRecv);
ds.close();
}
}
public class UdpSend
{
/** Socket发送消息
* <功能详细描述>
* @param args
* @throws Exception
* @see [类、类#方法、类#成员]
*/
public static void main(String[] args)
throws Exception
{
DatagramSocket ds = new DatagramSocket();
String str = "你好";
//IP可以填写自己本地IP,端口号填写没有被程序占用的
DatagramPacket dp =
new DatagramPacket(str.getBytes(), str.getBytes().length, InetAddress.getByName("10.168.8.255"), 8866);
ds.send(dp);
ds.close();
}
}