import java.io.IOException;

import java.net.*;

public class SendUdpTest {

    public static void main(String[] args) {

        try {

            DatagramSocket socket1 = new DatagramSocket();

            InetAddress address = InetAddress.getByName("127.0.0.1");

            String words [] = "welcome to java world".split(" ");

            int len = words.length;

         for (int i  = 0 ; i < len ;i++){

             byte [] byt = words[i].getBytes();

             DatagramPacket packet1 = new DatagramPacket(byt,byt.length,address,2021);

             System.out.println("发送："+words[i]);

             socket1.send(packet1);

             try {

                 Thread.sleep(1000);

             } catch (InterruptedException e) {

                 e.printStackTrace();

             }

         }

            socket1.close();

        } catch (SocketException e) {

            e.printStackTrace();

        } catch (UnknownHostException e) {

            e.printStackTrace();

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

java.net.SocketException: Software caused connection abort: recv failed

at java.net.SocketInputStream.socketRead0(Native Method)

at java.net.SocketInputStream.socketRead(SocketInputStream.java:116)

at java.net.SocketInputStream.read(SocketInputStream.java:171)

at java.net.SocketInputStream.read(SocketInputStream.java:141)

at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:284)

at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:326)

at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:178)

at java.io.InputStreamReader.read(InputStreamReader.java:184)

at java.io.BufferedReader.fill(BufferedReader.java:161)

at java.io.BufferedReader.readLine(BufferedReader.java:324)

at java.io.BufferedReader.readLine(BufferedReader.java:389)

at CourseExamples.Chapter_19.CilentTest.main(CilentTest.java:16)