java 使用UDP进行数据传输接受不到数据

Question

发送端的：
public static void main(String[] args) throws Exception {
String str = "你好";
//创建Socket对象
DatagramSocket s = new DatagramSocket();
InetAddress id = InetAddress.getLocalHost();
System.out.println(id);
//创建Packet对象，用来运输数据
DatagramPacket p = new DatagramPacket(str.getBytes(), str.getBytes().length,id.getByName("127.0.0.1"),6666);
//发送
s.send(p);
s.close();
}

接收端：
public static void main(String[] args) throws Exception {
    DatagramSocket s = new DatagramSocket();
        DatagramPacket p = new DatagramPacket(new byte[1024], 1024);
        s.receive(p);
        byte[] arr = p.getData();
        int len = p.getLength();

        System.out.println(new String(arr,0,len));
        s.close();
}

运行的时候接受端一直在等待接收

Answer 1

http://blog.csdn.net/awj3584/article/details/24714515