1. public class SendTest {
   
2. 
   
3. public static void main(String[] args) throws IOException {
   
4. DatagramSocket ds = new DatagramSocket();
   
5. byte[] t = "你好".getBytes();
   
6. DatagramPacket dp = new DatagramPacket(t,t.length, InetAddress.getByName("192.168.1.168"), 9950);
   
7. ds.send(dp);
   
8. ds.close();
   
9. 
   
10. }
    
11. 
    
12. }

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1. public class ReciveTest {
   
2. public static void main(String[] args) throws IOException {
   
3. DatagramSocket ds = new DatagramSocket(9950);
   
4. byte[] bt = new byte[1024];
   
5. DatagramPacket dp = new DatagramPacket(bt, bt.length);
   
6. ds.receive(dp);
   
7. String ip = dp.getAddress().getHostAddress();
   
8. String str = new String(dp.getData(), 0,dp.getLength());
   
9. System.out.println(str+"from"+ip);
   
10. ds.close();
    
11. }
    
12. 
    
13. }
    

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换宽带连接的ip控制台也没结果

ok了换个路径好了